
Following a blistering 85% spike in just three years, the S&P 500 has returned to rarefied heights.
Vanguard S&P 500 ETF (NYSE:VOO) and SPDR S&P 500 ETF Trust (NYSE:SPY) are tracking the benchmark. It’s now at a forward price-to-earnings ratio of about 23, a level last witnessed during the dot-com era.