SPX.X closed at 2502.22 on the last trading day with a gain of 0.06 %. SPX.X reached the high of 2508.85 in the last 52 weeks. SPX.X Price chart shows that the price varied between day's high of 2503.42 and day's low of 2497.1. The price is affected by various financial, economic and political information like inflation and growth. The price earnings ratio is a good indicator to guage SPX.X valuation. An investor can check historic PE ratio and compare with competitors by looking at SPX.X price history.