Reinvestment Rate

Deeper Explanation

Return on capital tells you how efficiently a business uses the money it has. Reinvestment rate tells you how much of its earnings it puts back to work at those returns. Together, they determine the rate at which intrinsic value compounds. A business earning 25% returns on capital but reinvesting only 20% of earnings (paying the rest as dividends or buybacks) compounds intrinsic value at 5% per year. A business earning 25% returns and reinvesting 80% of earnings compounds at 20% per year — a transformative difference over a decade. This framework explains why high dividend yields are not necessarily a sign of shareholder value creation. A business that pays out 80% of earnings as dividends is giving money back that could have compounded at the business's return on capital. Unless the business's ROIC is below the cost of capital (in which case returning cash to shareholders is indeed the right call), high dividend payout ratios often represent failure to find high-return reinvestment opportunities rather than shareholder generosity. The best growth businesses are those that can reinvest large fractions of their earnings at returns well above their cost of capital — and maintain that opportunity for many years. Amazon invested aggressively for decades — buying warehouses, building cloud infrastructure, expanding into new markets — each investment generating returns that fuelled the next. The reported earnings in any given year were modest because capital was being furiously reinvested. The wealth being created was enormous because that capital earned exceptional returns. Evaluating reinvestment quality requires asking: what specific projects or markets is management reinvesting in, and what are the observable early returns on those investments? When management cannot articulate high-return reinvestment opportunities, increasing the payout ratio or buying back shares (at a discount to intrinsic value) is the superior capital allocation.