What Is Active Share 

If you are going to invest with an active manager you might want to determine how active your manager actually is. You definitely don't want to pay active fees for a closet indexer. Active share, a measure introduced by Martijn Cremers and Antti Petajisto, will indicate how much your manager's portfolio differs from their stated benchmark. On the website ActiveShare.info, you can look up the active share of any mutual fund. Keep in mind that we could also interpret active share as a measure of how misspecified the stated benchmark is. The percent of active funds with high active share has been trending down for decades. #activemanagement #activeinvesting #equitymarkets #marketcommentary #equities #investing #indexinvesting #stockmarket #financialadvice #cfainstitute #marketanalysis