From Motley Fool:
Last month, investors received a not-so-subtle reminder that the stock market can (and does) move in both directions. In a span of two days, the iconic Dow Jones Industrial Average, tech-heavy Nasdaq Composite, and broad-based S&P 500 lost in the neighborhood of 6% to 7% of their respective value. This swoon also erased all year-to-date gains in the S&P 500, which is certainly a wake-up call after the benchmark index gained better than 31% in 2019, inclusive of dividends paid.