Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

One of my stocks dropped 40% in 2 days, how should I mentally approach this?
I haven't seen anyone mention tax considerations and that's why I'm answering this. The rest of my answer is probably covered in the aggregate of other responses. Here's how I would look at this in a taxable (not an IRA) account: This could be an opportunity to harvest the tax losses to offset taxable gains this year or in future years. Unless I have compelling reasons to believe that the price will recover by at least (Loss% x ApplicableTaxRate) in the next 31 days then I would take the known - IRS tables - opportunities over the unknown. Here's what I would consider for all accounts: Is this the most likely place to earn a good return on my money and is it contributing to a strategy that fits my risk tolerance? You might need to get some emotional distance from the pain to make this determination objectively. As you consider your trading and investment strategy going forward consider that when it hurts and you have to pull yourself up by the bootstraps to think clearly about your situation, you were most likely trading with too much size for you in that particular position. I'm willing to make exceptions to that rule of thumb, but it's a good way to use the painful losses as a gut check on how your strategy fits your real situation. P.S. All traders experience individual losses that hurt and find their way to the most suitable strategies for them through these painful experiences.