Assume the fund had perfect knowledge of all facts and figures about every company, and disregard valuation or amount of investment. Use purely objective parameters.
should be the same as manual trigger. Go thru the discovery process and identify events that trigger a manual setup. Automation will help align them with in your threshold. As you should know automation is not magic. Garbage in, garbage out. If you're not successful trading manually, automation will only speed up your losses.
The ones that makes them the most money? Kind of a weird question, why don't you do some actual automated testing?