Mario Gabelli's position in SSgA Active Trust - SPDR S&P 500 ETF Trust is currently worth $24.5M. That's 0.22% of their equity portfolio (127th largest holding). The first SSgA Active Trust - SPDR S&P 500 ETF Trust trade was made in Q1 2004. Since then Mario Gabelli bought shares five more times and sold shares on eight occasions. The stake costed the investor $14.3M, netting the investor a gain of 71% so far.