History Says This 1 Investing Mistake Could Cost You More Than Any Stock Market Crash

The article argues that despite the S&P 500, Nasdaq Composite, and Dow Jones Industrial Average nearing record highs, investors should not stop investing out of fear of a downturn. It cites historical drawdowns of about 27% in average bear markets, 35% in recession-linked bear markets, and 56% during the Great Recession, while noting that missing the market’s rebound can be far costlier, including a 76% S&P 500 rally since a June 2023 recession warning and nearly 53% total returns since the April 2025 bottom. The piece is broadly pro-stay-invested and highlights Stock Advisor’s 936% average return versus 209% for the S&P 500.

Analysis

The real message is not “buy the market” but “do not confuse valuation risk with timing skill.” In late-cycle tape, the biggest behavioral edge is avoiding cash drag from waiting for a perfect entry; the second-order effect is that sidelined capital tends to re-enter only after breadth has already improved, which means investors systematically buy higher. That creates a durable tailwind for the most liquid beta proxies and for firms that monetize trading volume, not just asset levels.

For DB and NDAQ, elevated uncertainty is actually a mixed-to-positive setup: higher attention, higher turnover, and more hedging demand support transaction activity even when direction is choppy. If retail and advisor sentiment stays defensive while indices grind up, options activity and index-linked rebalancing can remain elevated for months, which is typically more important for exchange/franchise revenues than the exact level of the S&P. The market’s biggest vulnerability is not an immediate crash, but a sharp deterioration in earnings breadth that would invalidate the “stay invested” thesis by making the next drawdown feel like a fundamentals break rather than a normal cycle.

The contrarian point the article misses is that “time in the market” is only positive if you are positioned in the right vehicles. Passive index exposure near highs can be fine, but the forward expected return is likely lower than the historical average unless earnings re-accelerate; meanwhile, single-name dispersion should stay high. That favors relative-value structures over outright directional bets, especially if macro data softens and the market starts rewarding balance-sheet quality and cash conversion over index beta.

Key Decisions for Investors

• Long NDAQ vs short a broad market beta proxy for 3-6 months: benefit from elevated options/turnover and dispersion; downside is a calm tape where activity normalizes faster than expected.
• Buy DB on weakness as a delayed-volatility beneficiary over the next 1-2 quarters: the cleaner setup is not directionality in equities, but increased client hedging, financing, and cross-border repositioning if uncertainty persists.
• Use collars on index exposure rather than reducing exposure: finance put protection by selling modest upside into strength, targeting 2-4 month horizons where a 5-8% drawdown would matter more than missing another 3-4% upside.
• Relative long NFLX / short index only if breadth remains narrow: consumer internet winners can compound while passive flows chase index highs, but the trade should be cut quickly if earnings revision breadth broadens.
• If implied vol stays suppressed while price makes highs, add tail hedges with 2-3 month tenor: the convexity is attractive because the market’s biggest risk is a fast volatility regime shift, not a slow grind lower.