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

Why can it be a bad idea to buy stocks after hours?
Unless you want to be a short term day trader, then it is not foolish to be an end of day trader. If you are looking to be a medium to long term trader/investor then it is quite acceptable to put orders in after market close. Some would say it is even less risky, because you are not watching the price fluctuate up and down and letting your emotions getting the best of you.