The Investor's Lexicon

The most widely watched long-term trend indicator, separating bull and bear regimes.

The highest price a stock has traded at over the past 52 weeks — the most widely watched resistance level and a key milestone in a stock's momentum trajectory.

William O'Neil

The pressure to do something — to trade, to react — even when inaction would be the better choice.

An investment strategy where a shareholder acquires a significant stake and then publicly advocates for strategic, operational, or governance changes to unlock value.

John Templeton

Ray Dalio's Bridgewater strategy designed to perform acceptably across all economic environments — built around risk parity across four economic quadrants.

Ray Dalio

The excess return of an investment above what would be predicted by its exposure to market risk (beta) — the value added by active management or security selection.

Howard Marks

The tendency to rely too heavily on the first piece of information encountered when making a decision — causing investors to fixate on arbitrary reference points like purchase price or 52-week high.

Daniel Kahneman

Even when investors try to adjust from an anchor, they typically do not move far enough — adjustment is systematically insufficient.

The tendency to rely disproportionately on the first piece of information encountered (the "anchor") when making subsequent judgments or estimates.

Daniel Kahneman

The division of a portfolio across different asset classes — equities, bonds, cash, real assets — to balance expected return against risk over time.

Ray Dalio

The statistical relationship between the returns of different asset classes — the foundation of portfolio diversification and the factor that changes most dramatically across economic environments.

Ray Dalio

Revenue divided by total assets — measures how efficiently a business converts its asset base into revenue, a key driver of return on assets.

Warren Buffett

A business that generates high returns without owning the underlying physical assets — platforms and marketplaces.

Placing excessive weight on the opinions of experts or famous investors — at the cost of independent thinking.

The tendency to judge the probability of an event based on how easily examples come to mind — causing recent, vivid, or emotionally resonant events to be perceived as more likely than they actually are.

Daniel Kahneman

The mental shortcut of judging probability by how easily an example comes to mind — overweighting vivid, recent, or emotionally charged events.

Daniel Kahneman

A measure of average daily price range — used to size positions and set stops in proportion to actual volatility.

Adding to a winning position as the stock proves the thesis correct — the opposite of averaging down.

A period of controlled price consolidation — with declining volume and tight price action — that precedes the next major price advance in a leading stock.

William O'Neil

A period of price consolidation — lasting typically 7-65 weeks — where a stock moves sideways or slightly downward after an advance, forming the launch pad for the next move higher.

William O'Neil

The tendency to underweight statistical base rates (the actual historical frequency of outcomes) in favour of specific, vivid case information.

Daniel Kahneman

A standard index or reference portfolio used to evaluate investment performance — the S&P 500 is the most common equity benchmark in the US.

Warren Buffett

A measure of an investment's sensitivity to broad market movements — a beta of 1.0 moves in line with the market; above 1.0 amplifies market moves; below 1.0 dampens them.

Howard Marks

An event that lies outside the realm of regular expectations, carries an extreme impact, and is rationalised in retrospect as if it should have been predictable — systematically underestimated by standard risk models.

Nassim Nicholas Taleb

Shareholders' equity on the balance sheet — total assets minus total liabilities — representing the accounting net worth of a company.

Benjamin Graham

Using price-to-book as a contrarian signal when stocks trade well below book value.

The moment when a stock's price moves above a defined resistance level — typically the top of a base pattern — on volume significantly above average, signalling the start of a new price advance.

Mark Minervini

Buffett's four-part investment screen: a business he understands, with favourable economics, honest and competent management, and a sensible price.

Warren Buffett

The recurring pattern of economic expansion and contraction — driven by credit, investment, and consumer spending cycles — that determines the backdrop against which all asset prices are set.

Ray Dalio

Deploying capital when sentiment is most negative and prices reflect worst-case scenarios.

O'Neil's 7-factor stock selection system: Current earnings, Annual earnings, New product or management, Supply and demand, Leader, Institutional sponsorship, Market direction.

William O'Neil

The Cyclically Adjusted Price-to-Earnings ratio — an equity market valuation measure using 10-year average inflation-adjusted earnings — which has historically predicted long-term equity returns with high reliability.

Jeremy Grantham

The record of all cross-border financial flows — FII flows are the key variable for short-term Indian market moves.

The decisions management makes about how to deploy the cash a business generates — reinvestment, acquisitions, dividends, buybacks, or debt repayment — which determine long-term shareholder value.

Warren Buffett

Money spent on acquiring or upgrading physical assets — the primary drain on free cash flow.

The movement of money between countries, asset classes, and markets in search of the best risk-adjusted returns — the primary driver of currency movements and cross-border asset price differentials.

Ray Dalio

The profit from selling an investment for more than its purchase price — the difference between the selling price and the original cost basis.

Warren Buffett

A business that can grow revenue without proportional increases in fixed assets or capital expenditure.

The final phase of a market decline where previously patient holders sell in despair — the emotional exhaustion that often marks market bottoms.

David Dreman

Borrowing in a low-interest-rate currency to invest in a high-interest-rate currency — profiting from the interest rate differential as long as the exchange rate remains stable.

George Soros

An event or development that causes the market to revalue an asset — the mechanism by which the gap between price and intrinsic value closes.

John Templeton

The dominant player in a market category — enjoying the strongest brand, best economics, and most durable moat.

The monetary tools — primarily interest rate setting and quantitative easing or tightening — that central banks use to manage economic cycles, and which are the most powerful external influence on short-term asset prices.

Ray Dalio

The percentage of customers or revenue lost in a period — the most important metric for any subscription business.

The domain of businesses and industries that an investor understands deeply enough to make reliable judgments about long-term competitive prospects and intrinsic value.

Warren Buffett

The discomfort of holding contradictory beliefs — investors resolve it by ignoring evidence that challenges their thesis.

Tracking behaviour of customers acquired in the same period — the best way to assess business quality over time.

A relative valuation method that values a company by comparing its financial metrics to publicly traded peers — establishing a market-derived valuation range.

Benjamin Graham

The geometric annual growth rate over a multi-year period — the single number that summarises how fast a business, market, or investment has grown.

Peter Lynch

The process by which returns generate further returns over time, causing wealth to grow at an accelerating rate — the central mechanism through which long-term investment creates extraordinary value.

Nick Sleep

The risk that an excessive allocation to a single investment, sector, geography, or risk factor could cause outsized losses if that concentration performs poorly.

Howard Marks

The tendency to search for, favour, and recall information that confirms pre-existing beliefs — while dismissing or underweighting evidence that contradicts them.

Daniel Kahneman

The aggregated analyst expectation for earnings, revenue, or growth — what is already priced into the stock.

A measure of average price changes paid by consumers for a basket of goods — the headline inflation gauge.

A sentiment, positioning, or valuation metric that signals extreme consensus in one direction — historically associated with subsequent reversals that benefit the investor who acts against the crowd.

John Templeton

Managing the unique risks of contrarian positions — being early, being wrong, and the psychological cost of fighting consensus.

A clearly articulated argument for why the market consensus is wrong and what catalyst will correct the mispricing.

The system of rules, practices, and processes by which a company is directed and controlled — the mechanisms that align management decisions with shareholder interests.

Warren Buffett

The statistical measure of how two investments move in relation to each other — ranging from +1 (perfect positive correlation) to -1 (perfect negative correlation).

Howard Marks

The expansion and contraction of credit availability in the economy — the most important driver of economic cycles.

The yield difference between corporate bonds and risk-free government bonds — a real-time measure of credit market risk appetite and economic stress.

Howard Marks

A consolidation pattern resembling a cup followed by a small handle, signalling accumulation before a breakout.

A fall in a currency's value relative to other currencies — affecting import costs, inflation, and real returns.

The risk that movements in exchange rates will reduce the returns on foreign investments when translated back to the investor's home currency.

Ray Dalio

The total sales and marketing cost to acquire one new customer — a measure of growth efficiency and the sustainability of the business model.

Peter Lynch

Dalio's framework describing the recurring expansion and contraction of credit — operating on two scales: a short-term cycle of 5–8 years and a long-term cycle of 50–75 years.

Ray Dalio

Total debt divided by shareholders' equity — a measure of financial leverage that determines how much of the business is financed by borrowing.

Benjamin Graham

The ratio of a country's total debt to its annual economic output — a measure of fiscal sustainability.

The deterioration in decision quality after making many decisions — leading to defaults, avoidance, or impulsiveness.

Investing in assets trading at extreme discounts to intrinsic value — typically distressed, neglected, or unloved — seeking the highest possible margin of safety.

John Templeton

A sustained decline in the general price level of goods and services — the opposite of inflation, typically associated with falling demand, credit contraction, and economic depression.

Ray Dalio

The process by which the private sector reduces total debt relative to income after a long-term debt cycle peak — a painful, multi-year adjustment that is qualitatively different from a standard recession.

Ray Dalio

A valuation method that estimates intrinsic value by projecting future cash flows and discounting them to present value at an appropriate rate.

Warren Buffett

The systematic bias of selling winners too early (to lock in gains) and holding losers too long (to avoid realising losses) — the combined result of loss aversion and mental accounting.

Richard Thaler

Clayton Christensen's theory that new entrants initially serve overlooked market segments with simpler, cheaper products, then progressively move upmarket to displace incumbents.

Philip Fisher

Investing in financially troubled companies — those near or in bankruptcy, restructuring, or severe liquidity crisis — at prices that reflect the highest possible pessimism.

David Dreman

A day when the market falls 0.2%+ on higher volume than the previous session — evidence of institutional selling.

A cash distribution paid by a company to its shareholders from profits — typically expressed as a dividend per share or as a yield relative to the share price.

Benjamin Graham

Annual dividend per share divided by the current share price — the income return on a stock expressed as a percentage, directly comparable to bond yields.

Benjamin Graham

A systematic contrarian strategy of buying the highest-dividend-yield stocks in an index each year.

The practice of investing a fixed sum at regular intervals regardless of market price — buying more shares when prices are low and fewer when prices are high, smoothing the average cost basis.

Warren Buffett

Gary Antonacci's systematic strategy combining absolute momentum (trend-following on an individual asset) with relative momentum (favouring the strongest-performing assets across a universe).

Richard Driehaus

Earnings before interest, taxes, depreciation, and amortisation — a proxy for operating cash flow used widely in valuation multiples, particularly EV/EBITDA.

Warren Buffett

A pattern of successive earnings-per-share improvements where the rate of growth is increasing, not just the level — a key signal of an accelerating business.

William O'Neil

Investment approach incorporating Environmental, Social, and Governance factors alongside financial analysis — evaluating non-financial risks and opportunities that affect long-term returns.

Howard Marks

Enterprise value divided by trailing or forward revenue — the primary valuation multiple for high-growth companies without meaningful profits.

Peter Lynch

A sequential increase in a company's quarterly earnings growth rate — one of the most powerful indicators that a business has reached an inflection point before its stock makes a major advance.

William O'Neil

The rate at which a company's earnings per share grow year-over-year — the foundation of Lynch's PEG ratio and growth stock valuation.

Peter Lynch

The acceleration of earnings growth — companies reporting not just earnings beats but increasing rates of improvement in earnings growth.

Richard Driehaus

Adjusting reported earnings for cyclical lows to estimate mid-cycle earnings power — the basis for contrarian valuation.

Net profit divided by the number of shares outstanding — the portion of a company's profit attributable to each share, the denominator in the P/E ratio.

Benjamin Graham

The degree to which reported earnings accurately reflect the true economic performance and cash-generating capacity of a business.

Benjamin Graham

Earnings per share divided by market price — the inverse of P/E expressed as a percentage, directly comparable to bond yields.

Benjamin Graham

A durable structural advantage that protects a business from competition and allows it to sustain above-average returns on capital over an extended period.

Warren Buffett

The additional return required by investors to hold emerging market assets, reflecting currency and political risks.

Labour market statistics — unemployment rate, non-farm payrolls, wage growth — that signal consumer financial health and business confidence in the economic cycle.

Howard Marks

We overvalue things we already own — investors demand more to sell a stock than they would pay to buy it fresh.

Market capitalisation plus net debt (total debt minus cash) — the theoretical takeover price of a business, representing the total cost to acquire all cash flows.

Warren Buffett

The excess return investors expect from equities over a risk-free rate — the fundamental driver of market valuations.

The anxiety of watching an investment rise without participating — a social and emotional pressure that drives investors into assets at precisely the wrong moment.

Richard Thaler

A systematic investment approach that tilts a portfolio toward well-documented return drivers (factors) — including value, quality, momentum, size, and low volatility — that have historically produced excess returns.

Howard Marks

A composite sentiment indicator measuring market emotion on a scale from extreme fear to extreme greed — used by contrarians to identify when emotion has pushed prices far from rational value.

David Dreman

The reflexive, consensus-driven reaction to news or data — the trap that contrarian investors seek to exploit.

Government spending and taxation decisions — alongside monetary policy, the primary lever for managing economic cycles and distributing purchasing power.

Ray Dalio

Premiums collected but not yet paid out as claims — an interest-free pool of capital Buffett famously deployed at Berkshire.

O'Neil's specific definition of a market uptrend confirmation: a major index gaining 1.25%+ in higher volume than the prior day, occurring on day 4 or later of a rally attempt from a correction low.

William O'Neil

Selling driven by margin calls, redemptions, or mandate constraints — not fundamentals — creating temporary mispricings.

Companies still led by their original founder — with greater skin-in-the-game and longer time horizons.

The same information presented differently leads to different decisions — a systematic bias in investor judgement.

The portion of a company's value from its ability to earn returns above the cost of capital on incremental investments.

Operating cash flow minus capital expenditures — the actual cash a business generates after funding its own maintenance and growth requirements.

Warren Buffett

The percentage of net income that converts to free cash flow — a measure of earnings quality and capital efficiency.

The portion of a company's shares actually available for public trading — excluding promoter and strategic holdings.

A hybrid strategy seeking growth companies trading at valuations not extreme relative to their growth rate.

The rate at which a country's total economic output expands or contracts — the most comprehensive single measure of economic cycle direction.

Ray Dalio

The mistaken belief that independent random events are influenced by previous outcomes — expecting a "correction" after a streak of results in one direction.

Richard Thaler

The impact of political instability, wars, and trade conflicts on financial markets and the global economy.

When the 50-day MA crosses above the 200-day MA — a widely followed bullish trend confirmation signal.

The premium paid above the fair value of a company's net assets in an acquisition — recorded on the acquirer's balance sheet as an intangible asset.

Warren Buffett

A dividend discount model that values a stock as the next period's dividend divided by the difference between the discount rate and the perpetual dividend growth rate.

Benjamin Graham

The square root of (22.5 × EPS × Book Value per Share) — Graham's formula for the maximum price to pay for any stock.

Benjamin Graham

Revenue minus cost of goods sold, divided by revenue — the percentage of each rupee of revenue that remains after direct production costs.

Philip Fisher

Gross profit retained from an existing customer cohort over time — a measure of customer lifetime value.

The percentage of recurring revenue retained from existing customers over a period, excluding any expansion revenue — measures pure customer retention before upselling.

Philip Fisher

The tendency to follow the crowd in investment decisions — buying what others are buying, selling what others are selling — to reduce the social risk of being wrong alone.

Richard Thaler

Assets not reflected in financial statements — real estate at historical cost, brand value, or undervalued subsidiaries.

A rare, powerful pattern where a stock doubles in 8 weeks then consolidates tightly — often the most explosive momentum pattern.

The tendency after an event has occurred to believe one "knew it all along" — creating a false sense of predictability that undermines learning from mistakes.

Daniel Kahneman

Believing that recent success will continue — pattern recognition applied where randomness actually dominates.

Marks's conceptual framework for recognising where we stand in market and economic cycles based on investor psychology, asset valuations, and risk appetites.

Howard Marks

The first sale of a company's shares to the public — transitioning from private to public ownership and raising capital by offering new or existing shares on a stock exchange.

Peter Lynch

The tendency to believe one has more influence over events than is objectively possible — leading to overtrading and excessive confidence in active portfolio management.

Daniel Kahneman

More information leads to more confidence, not better decisions — increasing the risk of overconfidence.

The intellectual discipline of forming investment views based on first-principles analysis rather than consensus opinion — the psychological prerequisite for sustained contrarian investing.

Howard Marks

The sustained increase in the general price level of goods and services — driven by the interaction of money supply growth, credit expansion, and the balance between demand and productive capacity.

Ray Dalio

A situation where individuals follow the observed actions of others rather than their own private information, causing a sequence of identical decisions regardless of individual evidence.

Richard Thaler

Companies too small or too controversial for large fund managers to own — leaving them mispriced.

The degree to which reputable institutional investors (mutual funds, pension funds, hedge funds) own and are increasing positions in a stock — a measure of sophisticated demand.

William O'Neil

Brands, patents, regulatory licences, and proprietary data that create durable competitive advantages.

Operating earnings divided by interest expense — measures how many times over a company can cover its interest payments from operating profits.

Benjamin Graham

The cost of borrowing money — set by central banks and transmitted through bond markets and credit conditions.

The true economic worth of a business based on its future cash flows, assets, and earnings power — independent of its market price.

Benjamin Graham

When short-term interest rates exceed long-term rates — a historically reliable leading indicator of economic recession, typically occurring 12-18 months before a downturn.

Howard Marks

A mathematical formula for optimal bet sizing: the fraction of capital to commit to an investment is (edge ÷ odds), where edge is the probability advantage and odds are the net payoff ratio.

William O'Neil

Lifetime value divided by customer acquisition cost — the return earned on customer acquisition investment, the fundamental unit economics test for subscription businesses.

Philip Fisher

Economic data points that change after the broader economy has already shifted — confirming trends rather than predicting them.

Howard Marks

A growth strategy where a company wins initial small contracts to establish a foothold with a customer, then expands the relationship over time through additional products or seats.

Philip Fisher

Economic data points that tend to change before the broader economy changes — providing advance warning of turning points in the economic cycle.

Ray Dalio

The total revenue (or profit) a business expects to earn from a single customer over the entire duration of the relationship.

Peter Lynch

The estimated proceeds from selling all of a company's assets and settling all liabilities — the absolute floor value of a business in a forced sale scenario.

Benjamin Graham

The ease with which an asset can be bought or sold without materially affecting its price — cash is perfectly liquid; private real estate is highly illiquid.

Howard Marks

The 50–75 year cycle of credit expansion and contraction — Ray Dalio's macro framework.

The tendency for the psychological pain of losing to feel approximately twice as powerful as the pleasure of an equivalent gain — causing investors to hold losers too long and sell winners too soon.

Daniel Kahneman

The improvement in profitability margins as a business scales — a powerful earnings multiplier on top of revenue growth.

Buying an asset at a significant discount to its intrinsic value to create a buffer against errors in analysis, adverse events, or bad luck.

Benjamin Graham

In contrarian investing, the discount to intrinsic value that provides protection against being wrong about both the timing of recovery and the extent of fundamental improvement.

Seth Klarman

The proportion of stocks participating in a market advance or decline — a measure of trend health.

A decline of 10–20% from a recent high — a normal feature of bull markets that shakes out weak holders.

Adjusting portfolio risk based on where we are in the market cycle — holding more cash at peaks, deploying at troughs.

The overall trend of the broad stock market — the single most important variable determining whether any stock selection strategy will succeed or fail in a given period.

William O'Neil

Periods when prices diverge significantly from fundamentals due to panic, illiquidity, or systemic stress.

A company's percentage of total industry revenue — a measure of competitive strength and growth potential.

The largest peak-to-trough decline in a portfolio's value over a specific period — the worst loss that would have been experienced by an investor who bought at the high and sold at the low.

Howard Marks

The point in a market, sector, or stock's cycle when negative sentiment is most extreme, expectations are lowest, and prices have discounted catastrophic scenarios that will not materialise — historically the best long-term entry point.

John Templeton

The observed tendency for asset prices, corporate profit margins, and returns on capital to return toward long-run historical averages after periods of extreme deviation.

Benjamin Graham

The tendency to treat money differently depending on its source, purpose, or label — creating irrational distinctions between units of currency that are economically identical.

Richard Thaler

The strategy of buying shares of an acquisition target after a takeover announcement at a discount to the deal price — profiting from the spread if the merger completes successfully.

Howard Marks

The documented systematic return premium earned by buying recent winners and selling recent losers — one of the most persistent and globally observed factors in asset pricing.

Richard Driehaus

Central bank actions — primarily setting interest rates and controlling money supply — to influence economic growth, employment, and inflation.

Ray Dalio

A measure of money in circulation including currency, demand deposits, savings accounts, and money market funds — a key indicator of liquidity conditions in the economy.

Ray Dalio

The average price of a security over a specified number of periods — a trend-smoothing tool that separates signal from noise in price action.

Jesse Livermore

Graham's metaphor for the stock market as an erratic business partner who offers to buy or sell his share at a different price every day — driven by emotion, not logic.

Benjamin Graham

The human tendency to construct coherent stories from random or loosely connected events — creating an illusion of understanding and predictability where little exists.

Daniel Kahneman

When reported earnings fall short of consensus expectations, often triggering outsized price declines.

Net income divided by revenue — the percentage of each rupee of revenue that reaches the bottom line after all costs, taxes, and interest payments.

Warren Buffett

The percentage of revenue retained from existing customers in the current period vs the prior period, including expansion revenue and net of churn.

Philip Fisher

Current assets minus all liabilities (both current and long-term). Graham's ultra-conservative value floor — any stock trading below this is statistically cheap.

Benjamin Graham

A business becomes more valuable as more users join — creating a self-reinforcing competitive moat.

Earnings adjusted to remove cyclical, one-time, or accounting distortions — representing the sustainable through-cycle earning power of a business.

Benjamin Graham

Through-cycle average earnings that strip away cyclical distortions — the contrarian's tool for identifying businesses that appear expensive on current earnings but cheap on normalised earnings.

David Dreman

The degree to which a business's fixed cost structure causes profits to grow faster than revenue as scale increases.

Peter Lynch

Operating profit (EBIT) divided by revenue — the percentage of each rupee of revenue remaining after variable costs and operating overhead, before interest and taxes.

Warren Buffett

Judging a decision by its outcome rather than by the quality of the reasoning at the time it was made.

Conditions where a stock has moved far from its mean in either direction, often signalling a coming reversal.

The systematic tendency to overestimate the accuracy of one's own analysis and the predictability of future outcomes — the single most consistently documented and costly bias in financial decision-making.

Daniel Kahneman

The tendency of markets to price assets based on extrapolation of recent trends rather than realistic assessment of long-term probabilities — creating systematic over-discounting of bad news and under-discounting of good news.

David Dreman

Markets overreact to dramatic events and underreact to gradual changes — creating systematic patterns to exploit.

Buffett's measure of a business's true cash generation: net income plus depreciation and amortisation, minus the capital expenditure required to maintain competitive position.

Warren Buffett

Price-to-Earnings divided by the expected earnings growth rate — a valuation shortcut that adjusts the P/E ratio for a company's growth, making high-P/E growth stocks comparable.

Peter Lynch

The time required to recover the cost of acquiring a customer from the gross profit generated by that customer — a measure of how capital-efficient a growth business is.

Peter Lynch

Dividends per share divided by earnings per share — the percentage of profits paid out as dividends; the remainder is retained and reinvested in the business.

Benjamin Graham

Markets swing between fear and greed, pessimism and optimism — rarely resting at a rational midpoint.

The universal tendency to underestimate time, cost, and risk while overestimating the probability of success.

A business that creates value by facilitating interactions between two or more user groups.

An early entry signal where a stock closes up on volume greater than any down-day volume in the prior 10 days.

Sub-sectors or themes within a broadly healthy market where excessive negativity creates isolated opportunities.

The complete collection of investments held by an individual or institution — the total of all positions across all asset classes at a given point in time.

Warren Buffett

Allocating capital based on risk per trade, volatility, and conviction — not arbitrary portfolio weights.

A market condition where the major indices are in a strong, accelerating uptrend — ideal for momentum strategies.

A prospective failure analysis technique: before making a decision, imagining that it has already failed and working backward to identify what caused the failure.

Daniel Kahneman

The process by which markets aggregate dispersed information to arrive at a price reflecting collective knowledge.

The empirically documented tendency for stocks that have outperformed recently to continue outperforming in the near to medium term.

Richard Driehaus

The combined analysis of price movement and trading volume to distinguish genuine institutional buying or selling from noise.

William O'Neil

Market price per share divided by book value per share — compares the market's valuation to the accounting value of a company's net assets.

Benjamin Graham

Market price per share divided by annual earnings per share — the most widely used shorthand for whether a stock is cheap or expensive relative to its earnings.

Benjamin Graham

Market capitalisation divided by annual revenue — a valuation multiple useful for companies with no earnings, or when earnings are temporarily depressed.

Peter Lynch

The distinction between decision process quality and outcome quality — only the former is controllable.

A measure of prices received by producers — a leading indicator of consumer inflation as input costs pass through.

The degree to which a product satisfies a strong market demand — the point at which customers actively seek the product, adoption accelerates, and retention is high.

Philip Fisher

The pledging of promoter-held shares as collateral for a loan — a risk indicator in Indian markets where forced sales of pledged shares can trigger price collapses.

Warren Buffett

Kahneman and Tversky's model of how people actually evaluate gains and losses — showing that outcomes are evaluated relative to a reference point, and losses are weighted more heavily than equivalent gains.

Daniel Kahneman

A monthly survey of purchasing managers across manufacturing and services, measuring new orders, production, employment, and supplier deliveries — readings above 50 indicate expansion, below 50 indicate contraction.

Ray Dalio

The ratio of put option volume to call option volume — a sentiment gauge where extreme readings (very high or very low) signal contrarian inflection points.

David Dreman

The valuation premium that high-quality businesses with durable competitive advantages command over the broad market — the extra P/E an investor should rationally pay for superior, predictable earnings.

Charlie Munger

The degree to which reported earnings reflect the true, sustainable cash-generating power of a business — distinguishing genuine profit from accounting adjustments and one-off items.

Terry Smith

Whether earnings growth comes from genuine operating leverage or financial engineering and one-offs.

A central bank policy of purchasing government bonds and other financial assets to inject reserves into the banking system and lower long-term interest rates when conventional rate tools are exhausted.

Ray Dalio

Investor's Business Daily's 1-99 score ranking a stock's price performance over 12 months relative to all other stocks — O'Neil's proprietary relative strength measure.

William O'Neil

Physical assets — commodities, real estate, infrastructure, and natural resources — whose value is linked to physical supply/demand rather than financial claims, providing inflation protection.

Ray Dalio

The periodic adjustment of a portfolio back to its target asset allocation by selling outperforming assets and buying underperforming ones — systematically buying low and selling high.

Ray Dalio

The tendency to place excessive weight on recent experience when forming expectations about the future — extrapolating short trends into indefinite futures.

Richard Thaler

A significant decline in economic activity, typically defined as two consecutive quarters of negative GDP growth.

Revenue that automatically renews — subscriptions, SaaS, maintenance contracts — providing predictability and compounding.

A phase of recovery where growth and inflation both rise from depressed levels — often best for cyclical assets.

Soros's theory that market prices and economic fundamentals mutually influence each other through two-way feedback loops — creating self-reinforcing dynamics that cause cycles to overshoot equilibrium in both directions.

George Soros

The statistical tendency for extreme values to move toward the average over time — often misinterpreted as causation or skill when it is purely statistical.

Daniel Kahneman

A business that can deploy incremental capital at 20%+ returns for long periods — the rarest and most valuable quality.

The proportion of earnings a business retains and reinvests at high rates of return — the key driver of long-run compounding beyond simply earning high returns today.

Terry Smith

A ranking of a stock's price performance against all other stocks over a defined period — typically 52 weeks — used to identify market leaders before major price advances.

William O'Neil

Current volume as a multiple of average volume — a measure of unusual institutional activity.

The cost to build or acquire the same business from scratch today — a floor valuation for asset-intensive industries.

Judging probability by how closely something resembles a stereotype or prototype — ignoring base rates in favour of surface similarity.

Daniel Kahneman

Cumulative profits reinvested in the business rather than paid as dividends — the raw material of compounding.

Net income divided by total assets — a measure of how efficiently a business uses its asset base to generate profit.

Operating profit divided by capital employed (total assets minus current liabilities) — measures how efficiently a business generates profit from all capital deployed in the business.

Warren Buffett

The profit a company generates relative to shareholder equity — a measure of how efficiently management converts equity capital into earnings.

Philip Fisher

Operating profit after tax divided by total capital employed — the single most revealing measure of whether a business creates or destroys economic value.

Charlie Munger

The percentage gain or loss on an investment relative to its cost — total return (including dividends and price appreciation) divided by the amount invested.

Warren Buffett

The percentage change in revenue year-over-year — the most direct measure of whether a business is expanding its commercial footprint.

Philip Fisher

An annualised revenue projection based on the most recent period's performance — current monthly or quarterly revenue multiplied to produce a full-year estimate.

Philip Fisher

A portfolio construction approach that allocates capital based on risk contribution rather than capital weight — ensuring each asset class contributes equally to total portfolio volatility.

Ray Dalio

The additional return investors require above the risk-free rate to compensate for bearing the risk of an uncertain outcome — which expands during periods of fear and compresses during periods of greed.

Howard Marks

The theoretical return on an investment with zero risk — typically the 10-year government bond yield.

The market's binary mode-switch between appetite for riskier assets (equities, high-yield debt, commodities) and flight to safety (government bonds, gold, cash).

Howard Marks

The ratio of potential gain to potential loss on a trade — the fundamental filter for entering a position.

A benchmark for software and technology company health: the sum of the revenue growth rate and the profit margin (FCF or EBITDA) should exceed 40%.

Peter Lynch

The pattern of technology adoption: slow early, explosive in the middle, then maturing — the growth investor's roadmap.

Mark Minervini's framework for identifying stocks at the precise moment of breakout from a sound base.

An asset expected to retain or increase in value during periods of market stress — historically including gold, US Treasuries, the Japanese yen, and the Swiss franc.

Ray Dalio

The ability to grow revenue significantly without a proportional increase in costs — the engine of margin expansion.

A business model in which cost savings from scale are passed to customers as lower prices rather than captured as margin — creating a self-reinforcing flywheel of loyalty, volume, and competitive advantage.

Nick Sleep

Philip Fisher's term for competitive intelligence gathered from customers, competitors, suppliers, and former employees — used to assess the qualitative dimensions of business quality that financial statements cannot capture.

Philip Fisher

Philip Fisher's research method of gathering qualitative intelligence about a company from customers, competitors, suppliers, and former employees.

Philip Fisher

Going beyond the obvious consensus view to ask what the market is missing — the hallmark of contrarian analysis.

Howard Marks

The movement of investment capital from one market sector to another as the economic cycle evolves — following strength into leading sectors and exiting lagging ones.

Richard Driehaus

Conditions where investor opinion is overwhelmingly one-directional — extreme bullishness or bearishness — suggesting the crowd is dangerously uniform in its positioning.

John Templeton

The portion of the TAM a company can realistically target given its current business model, geographic reach, and go-to-market capabilities.

Philip Fisher

A company's repurchase of its own shares from the open market, reducing the share count and increasing each remaining shareholder's proportional ownership.

Warren Buffett

The excess return above the risk-free rate divided by the standard deviation of returns — a risk-adjusted performance measure expressing return per unit of volatility taken.

Howard Marks

The total number of shares sold short as a percentage of the float — a measure of bearish positioning that, at extremes, can signal contrarian opportunity through short squeeze dynamics.

David Dreman

Borrowing and selling shares you do not own, anticipating the price will fall — then buying the shares back at a lower price to return them, profiting from the decline.

George Soros

Using others' behaviour as a cue for correct action — the mechanism behind market bubbles and panic selling.

The risk that a government fails to meet its debt obligations — triggering currency crisis and economic contraction.

Corporate events — spin-offs, restructurings, rights issues — that create temporary mispricings.

A corporate transaction where a parent company distributes shares of a subsidiary to existing shareholders as a separate public entity — often creating the best contrarian opportunities.

John Templeton

Stan Weinstein's framework of four market stages a stock passes through: base-building, advancing, topping, and declining — defining when to buy and when to avoid.

Richard Driehaus

A simultaneous combination of high inflation, high unemployment, and stagnant economic growth — a rare and particularly challenging macro environment that defeats conventional policy responses.

Howard Marks

The preference for the current state of affairs over change — manifesting as reluctance to make portfolio changes even when analysis clearly indicates they are warranted.

Richard Thaler

A pre-defined price level at which a position is exited automatically to limit loss — the foundational risk management tool that preserves capital for future opportunities.

Mark Minervini

A valuation method that values each business unit or asset of a conglomerate separately, then adds the components — useful when the whole trades at a discount to its parts.

Benjamin Graham

Continuing to commit resources to a failing course of action because of resources already invested, rather than assessing the future prospects independently.

Richard Thaler

The logical error of focusing on successful examples that passed a selection filter while ignoring the many failures that did not — systematically overestimating the probability of success.

Daniel Kahneman

The financial, operational, or psychological costs a customer incurs when moving from one product to a competitor.

Fast, automatic, intuitive mental processing — pattern recognition that operates largely below conscious awareness, prone to bias and heuristic shortcuts.

Daniel Kahneman

Slow, deliberate, effortful analytical reasoning — logical processing that can override System 1 impulses but is cognitively expensive and easily fatigued.

Daniel Kahneman

The risk of extreme, low-probability outcomes that occur in the "tails" of a return distribution — events far outside what standard risk models predict.

Howard Marks

The practice of selling investments at a loss to realise a tax deduction, then reinvesting in a similar (but not identical) position to maintain market exposure.

Warren Buffett

The present value of all cash flows beyond the explicit forecast period in a DCF model — typically representing 60–80% of a company's total calculated intrinsic value.

Warren Buffett

Minervini's five-condition checklist — trend template, 52-week proximity, base quality, breakout trigger, and defined stop-loss — that defines the highest-probability entry points for momentum positions.

Mark Minervini

The total revenue opportunity available to a product or service if it achieved 100% market share — used to assess a growth company's long-term ceiling.

Peter Lynch

A stop-loss that rises with the stock price, locking in profits while allowing the trend to run.

An investment approach that identifies and holds securities in established uptrends — being long when price trends are rising, exiting when trends break.

Richard Driehaus

A company that has experienced a period of poor performance or distress but has the financial strength and management capability to recover to normal business performance.

John Templeton

The revenues and costs associated with a single unit of a business — one customer, one transaction, or one subscription — revealing whether the core business model creates or destroys value at the atomic level.

Peter Lynch

An entire industry trading at depressed multiples due to cyclical, regulatory, or narrative headwinds.

A stock shunned by analysts and avoided by institutional investors — often for non-fundamental reasons.

Defining and confirming an uptrend through higher highs, higher lows, and price above key moving averages.

A security that appears cheap on valuation metrics but is actually correctly priced because its business is in permanent or structural decline — the most common mistake in contrarian and value investing.

Howard Marks

The rate at which money circulates through the economy — a key driver of inflation that monetary policy alone cannot control.

Minervini's base formation pattern characterised by progressively tighter price contractions with declining volume — the technical signature of professional accumulation before a breakout.

Mark Minervini

Above-average trading volume accompanying a price advance or breakout — confirming that institutional buyers are driving the move rather than low-conviction retail activity.

William O'Neil

The blended cost of a company's capital, weighted by the proportion of debt and equity in its capital structure — used as the discount rate in DCF valuations.

Warren Buffett

Making market decisions based on the preponderance of indicators rather than any single signal.

Current assets minus current liabilities — the short-term liquidity buffer a business uses to fund its day-to-day operations and meet near-term obligations.

Benjamin Graham

A graphical representation of interest rates across different maturities — whose shape signals the market's expectation of future economic conditions and monetary policy, with inversion historically preceding recessions.

Ray Dalio