A look at the weighted underlying holdings of the Direxion Nanotechnology ETF (TYNE) shows an impressive 10.7% 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 » Surgalign Holdings Inc (SRGA), which makes up 4.85% of the Direxion Nanotechnology ETF (TYNE), has seen 2 directors and officers purchase shares in the past six months, according to the recent Form 4 data.