Short Stocks

How much tax can I expect to pay if I gain profit from Selling Stocks for short time trade?
I am planning on buying Visa stock on the first day when the market opens. If the stock goes up rocket high in the first day or two, then I want to sell it and cash out some gains. If I do that how much tax do I need to pay to “uncle Sam” as short term capital gain? I am thinking of investing 20K.
it is just like any other income, depends on what tax bracket you are in what percent you pay
How to Short Stocks