The August Stock Market Slump Is a Wall Street Myth
Two centuries of data say August is actually fine for stocks. Stop falling for the seasonal scare.
Every August, the same tired story hits your feed: brace for the summer swoon, trim your exposure, volatility is coming. Wall Street loves a seasonal narrative. The problem? The data doesn't back this one up.
More than 200 years of market history shows stocks typically post gains in August — and volatility during the month runs below average. That's not a minor asterisk. That's a full demolition of one of finance's most recycled talking points. If you sold in July to "stay safe" in August, you were playing defense against a ghost.
Read more August Stock Market Volatility: How to Protect Your Portfolio →
So why does the myth persist? Partly because a few brutal Augusts — think 2015's flash crash or 2011's debt-ceiling meltdown — burn into trader memory far more deeply than the quiet, grinding green months that surround them. Recency bias and dramatic headlines are a powerful combo. Wall Street also has every incentive to keep you clicking, trading, and second-guessing your portfolio.
The tradeable takeaway here is simple: don't let a calendar myth drive your positioning. If your thesis on a stock or index is solid, August is not a structural reason to bail. Emotional, narrative-driven exits are how retail traders hand money to professionals who ignore the noise and stay in their lanes.
Seasonality can be a real edge when it's grounded in consistent, reliable data — but this particular pattern isn't. Check your assumptions, not just your charts. Continue reading at MarketWatch.com
