The claim that the current bull market is overdue for collapse based on its age has no empirical support.
Historical analysis of S&P 500 bull markets since 1950 demolishes this narrative. Of the 12 cycles in that span, durations ranged from 16 months to 113 months, averaging 58 months. That 97-month spread—with no clustering around any "typical" lifespan—proves age itself predicts nothing about termination.
Returns show the same pattern: a 21 percent low to a 417 percent high. The current cycle's gains fall squarely within historical bounds. If duration mattered, we would expect longer cycles to underperform shorter ones, or vice versa. They do not.
Market reversals have consistent, observable triggers. The dot-com burst in 2000 stemmed from Federal Reserve tightening and unsustainable technology valuations, not the bull market's eight-year age. The 2008 financial crisis originated in systemic housing and credit risks, independent of the preceding cycle's length. Each major downturn has traceable economic or policy origins.
Behavioral arguments—that investor complacency builds over time—misinterpret the mechanism. Complacency is real and cyclical, but it manifests as a *symptom* of specific conditions (low volatility, tight credit spreads, earnings growth) rather than as an automatic output of market duration.
For the current market, the relevant metrics are inflation relative to the Federal Reserve's 2 percent target, monetary policy trajectory, and corporate profit trends. A sustained earnings downturn or persistent above-target inflation would present measurable risk. The market's age does not.
