This page lets you experiment with hypothetical trades to see what their value would be today if you had made them at a certain date in the past. Just enter the ticker, the dollar amount invested, and the date of the trade. Max Drawdown shows you the maximum percentage loss you would have had to endure from the largest 'peak to trough' move during your holding of the security. Max Loss shows you the maximum percentage loss based on the amount you paid for the security in the first place. For short sales, use a negative dollar amount.