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

Why is the stock market closed on the weekend?
There are a number of factors here. 1) It's important that there is human oversight on the system. At one level someone needs to be monitoring the computers that manage the trading to be sure they are functioning. At another level someone needs to be making judgement calls on important but rare events: when you you suspend trading in a stock? When do you close the stock exchange entirely? It is alleged that unsupervised computer trades were at least partly responsible for the May 2010 selloff. Even if that's unproven, would you really want those unsupervised computers trading with each other for a couple of days? Or even for a couple of hours? 2) Providing 24/7 trading would increase the cost of running a stock exchange, but with only a tiny improvement in liquidity. 3) If the stock exchange ran 24/7 then traders would have to run 24/7. That would add hugely to the cost of trading. 4) The people who would really suffer would be day traders - because there would no longer be such a thing as a day trader. If you were a sole trader then you would need to monitor your investments 24/7, or risk waking up in the morning to find one of your stocks had plummeted overnight.