that allow me to input the symbol and the date to find the high and low to use for a cost basis. The company was Washington Gas Light. Symbol is/was WGL, as the company was taken over by AltaGas Ltd, and the WGL common stock was cancelled and shareholders paid an agreed upon price. Since WGL has been delisted, I can't find anything that let's me look around in price history. I kept a portfolio listing in Yahoo Finance, and all they have has been blanked out. Yes, I know that I should have documentation for everything, but I can't easily locate this info, so I'm reaching out for assistance so I can figure out what I'm looking at on capital gains tax. Thanks in advance for your help...