I extend out the expiration so I have a chance of my calls or puts hitting. Strikes in the money or at the money. Bad day and it feels like the bottom, im buying some calls, and vice versa. With index based ETFs you can just straight scalp the random movements intraday and thats a good way to stack bread. Wouldn't do this shit with any individual stock but with the index idc, there's some intrinsic value with the ETFs because its essentially the market as a whole.

As someone said, calculated gambling. I used the option profit calculator online to kinda get an idea of where I need to be for it to hit even before I place an order.