Quote from jmoo:
Is there a breakdown of rules for the OO strategy envelope, stocks etc.??
Listed stocks only, which ones are up to you. You can start with Dow stocks and go from there.
Envelope is up to you as well. Big envelopes mean fewer fills but potentially fewer losers.
Search on "Don's Openings" with search criteria "titles only" and "show results as threads". The basics are covered there.