Ken Griffin's position in Vanguard Group - Vanguard S&P 500 ETF is currently worth $29.3 Million. That's 0.03% of their equity portfolio (649th largest holding). The investor owns 3.19% of the outstanding Vanguard Group - Vanguard S&P 500 ETF stock. The first Vanguard Group - Vanguard S&P 500 ETF trade was made in Q2 2014. Since then Ken Griffin bought shares 41 more times and sold shares on 34 occasions. The stake costed the investor $24.3 Million, netting the investor a gain of 20% so far.