The price of RSP, which holds every S&P 500 company at the same weight. Set against SPY, it shows whether the average company is keeping up with the giants. Price only.
Hover to inspect recorded values. Click to pin a point; click again to release. Drag between two points to measure the return over that span. Use arrow keys to move, shift with an arrow key to extend a span, Home or End to jump, and Escape to clear.