Profitability factor
TheoryDefinition
The tendency of highly profitable companies (measured by gross-profits-to-assets, or free cash flow yield) to outperform less profitable peers — even when the profitable companies look expensive on P/E. Introduced by Robert Novy-Marx (2013) and added to the Fama-French model as the RMW (robust minus weak) factor.
Historical premium: ~3–4% per year. Related to but distinct from quality: profitability specifically focuses on operating efficiency and free cash generation, not balance-sheet health.
The insight: the market sometimes underprices highly profitable firms because they look boring, are in mature industries, or don’t fit the “growth story.” Cash flows ultimately win.
Historical premium: ~3–4% per year. Related to but distinct from quality: profitability specifically focuses on operating efficiency and free cash generation, not balance-sheet health.
The insight: the market sometimes underprices highly profitable firms because they look boring, are in mature industries, or don’t fit the “growth story.” Cash flows ultimately win.
Example
COWZ (Pacer US Cash Cows 100) holds the 100 Russell 1000 stocks with the highest free cash flow yield, weighted by FCF. 2017–2023 CAGR ~13% versus S&P 500 ~11% — with better downside protection in 2022.
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