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by chrisaycock 5680 days ago
Um, what you're referring to is a form of high-frequency trading. For that you'll need (1) a direct connection to the exchange, and possibly even co-location; (2) historical tick data for backtesting; and (3) the hardware and software capable of executing the logic. The kinds of time-sensitive arbitrage opportunities you're hinting at take a TON of skill and start-up capital to perform.

Basically, if you haven't done this kind of stuff before, this not the type of strategy you should start with.