The stock market has experienced a lot of selling of late, and for swing-traders the prospect of knowing whether to hold a trade over night or multiple trades for that matter is very difficult. But this video has been put together to help you determine how to trade these difficult markets and to know when a stock market crash is done and over with. The stock market has experienced a lot of selling of late, and for swing-traders the prospect of knowing whether to hold a trade over night or multiple trades for that matter is very difficult. But this video has been put together to help you determine how to trade these difficult markets and to know when a stock market crash is done and over with.