Stock prices are affected by a lot more than the day of the week, so it can take more than a calendar to get rich playing the markets. But historically, many studies have shown that prices typically drop on Mondays, making that often one of the best days to buy stocks. Friday, usually the last trading day before the Monday drops, is therefore one of the best days to sell.
On Moday, I will be looking to buy stocks that have been beaten down based on unjust negative sentiment selling at a discount to their intrinsic value.