Bull markets are born on pessimism, grow on skepticism, mature on optimism and die of euphoria.

John Templeton (1912–2008), a pioneering global value investor and founder of the Templeton Growth Fund, frequently summarized his contrarian market philosophy in aphorisms about investor psychology. This line is commonly attributed to him in investing literature and financial media as a capsule description of how sentiment shifts over a market cycle—from widespread gloom after declines to exuberance near peaks. It reflects Templeton’s long career observing post-crisis recoveries and late-cycle manias, and it is often invoked to explain why major advances tend to begin when news still feels bleak and end when confidence becomes nearly universal.

The quote frames bull markets as psychological narratives rather than purely economic events. Early in a new uptrend, pessimism is so entrenched that prices are depressed and risk is underappreciated—conditions that can create opportunity. As markets rise, skepticism persists; investors doubt the durability of gains, which can keep valuations from overheating. In maturity, optimism becomes the default and participation broadens. The terminal phase—euphoria—signals a dangerous consensus: investors extrapolate recent returns, dismiss risk, and bid prices beyond fundamentals. Templeton’s implication is contrarian: the best opportunities often appear when sentiment is darkest, and the greatest danger when everyone feels certain.

1) “Bull markets are born on pessimism, grow on skepticism, mature on optimism, and die on euphoria.”
2) “Bull markets are born on pessimism, grow on skepticism, mature on optimism and die on euphoria.”
3) “Bull markets are born on pessimism, grow on skepticism, mature on optimism, and die of euphoria.”