Stock Market Outlook: 2 Forces That Could Spark Sell-Off in Tech-Heavy Market
By at least one measure, the US stock market is more concentrated in its biggest names than it’s ever been. The top 10 stocks in the S&P 500 now make up about 40% of the benchmark index, an all-time high, according to Morningstar data. Morningstar High concentration in any portfolio can be risky because, while…