Jim Simons's position in White Mountains Insurance Group, Ltd. is currently worth $1.07 Million. That's 0.00% of their equity portfolio (2190th largest holding). The first White Mountains Insurance Group, Ltd. trade was made in Q2 2013. Since then Jim Simons bought shares 22 more times and sold shares on 24 occasions. The stake costed the investor $506 Thousand, netting the investor a gain of 112% so far.