Bill Miller's position in SSgA Active Trust - SPDR S&P 500 ETF Trust is currently worth $22.2M. That's 5.58% of their entire equity portfolio (3rd largest holding). The first SSgA Active Trust - SPDR S&P 500 ETF Trust trade was made in Q4 2015. Since then Bill Miller bought shares nine more times and sold shares on eight occasions. The stake costed the investor $20.6M, netting the investor a gain of 7.8% so far.