S&P 500 technology index is seeing facing three-way threat
The biggest U.S. technology companies dominate their industry group to a degree that poses risks for investors, according to David Kastner, a senior investment strategist at the Schwab Center for Financial Research. Kastner singled out Apple Inc., Microsoft Corp. and Nvidia Corp. in a blog post Thursday. They ended last week with a combined 51% weight in the S&P 500 Information Technology Index, according to data compiled by Bloomberg. The index’s top three are poised to increase their share of its value for a fifth straight year.