A look at the weighted underlying holdings of the First Trust Financials AlphaDEX Fund (FXO) shows an impressive 10.1% of holdings on a weighted basis have experienced insider buying within the past six months. Start slideshow:10 ETFs With Stocks That Insiders Are Buying » Howard Hughes Corp (HHC), which makes up 0.59% of the First Trust Financials AlphaDEX Fund (FXO), has seen 2 directors and officers purchase shares in the past six months, according to the recent Form 4 data.