A look at the weighted underlying holdings of the SPDR S&P Telecom ETF (XTL) shows an impressive 11.5% 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 » Globalstar Inc (GSAT), which makes up 1.70% of the SPDR S&P Telecom ETF (XTL), has seen 2 directors and officers purchase shares in the past six months, according to the recent Form 4 data.