Buy Today Sell Tomorrow is a strategy adopted when you see that today market is good, and next day also you expect markets to open firm, and the stock is expected to open up in gap.
In such scenario, if you are holding say 1000 coins of ABC Company, you buy 1000 more coins of it to be sold next day. Now if the stock shows positive movement next day, you make profit on the additional 1000 coins, which you sell it next day. Original 100 coins still remain in your account and you get profit on the additional coins bought by doing B.T.S.T. In case of coins that you hold, you can go long with same quantity to be sold next day as explained above.
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