If you sell at a loss or sold at a loss, please read...
First, I'm not a tax adviser, do your own research!! Know and understand the tax implications of doing this. You are able to sell at a loss and deduct the loss from your capital gains and ultimately your adjusted income, but there is a limit of $3000.00; that is the limit of your loss for any single tax year. (you can roll over losses year to year, up to 3000.00 (too complicated for a single post)) Also, (VERY important) read thoroughly and fully understand the "wash rule." If you sell at a loss, you must NOT buy back in for 30 days. If you do, you can NOT take the loss. If you decide to ignore this because emotions get the best of you, because the buy back-price is just "too good to pass up," understand that you will be (in a sense) paying taxes on money you lost.