The stock market does not owe you an uptrend. That truth hits hardest when the major indexes move sideways for years, grinding up a little, sliding down a little, and ending up exactly where they started. Everyone loves to talk about long-term averages, but averages hide the uncomfortable stretches. Japan’s mark delivered decades of frustration. The S&P 500 went nowhere from 2000 to 2010. Flat markets test patience, discipline, and a lot of confident assumptions that sound brilliant in a bull run.
Here are nine investing beliefs that crumble when markets refuse to cooperate—and what to think about instead.
