Few Stocks in the S&P 500 Are Hitting Highs — Here's Why That Matters

On July 16, only 42 of the S&P 500's 500 stocks reached their highest price in a year, per Reuters. The Nasdaq Composite fared similarly. For people holding index funds, your returns may depend on a few giant companies — the so-called Magnificent Seven — which MarketWatch reports are "quietly coming back to life," rather than the broader market being healthy.