Ah, that’s where the disconnect was. I thought you were tracking famous guys like Buffet, Ackman, etc. Question: when you track your managers, do you try to separate “closet indexers” from guys that have an edge. Or you don’t care as long as their buying will move the stock?
Managers who track indices are good to assess how non-economic actors are positioned. This results in some pretty well known trading anomalies such as index inclusion and deletions (people front run passive funds who need to buy the stock — this is a legit strategy though alpha is not so great anymore). Managers who are specialists are much more interesting to cover and present more of a trading opportunity. However, you typically will need to find stocks where multiple managers are likely to enter/exit in order for you to make a trade.