Even before the U.S. and Israel attacked Iran on Feb. 28, a scary chart parallel had emerged between the S&P 500 SPX currently and the index’s behavior in early 2000 — just before the dot-com bubble ...
The benchmark index looks historically expensive at 33 times earnings.
The S&P 500 is a popular market index. View its historical performance throughout the years and learn more about the factors that affect its average return.