A very small group of option traders trade mathematical mechanical systems based on a math formula that gives option direction (call or put) daily.
These systems call for pre-determined Buy Limit, Sell Limit and Stop, usually combined into a semi-automated I.B. Bracket Order. Many times the trade will either trigger the Sell Limit or trigger the Stop, ending the trade in the same day.
I demonstrated one of these systems with live calls including the daily bracket orders on an older ET thread I had called, Purely Mechanical Option Trading Part 2.