Jeremy Grantham's position in JPMorgan Chase is currently worth $30.1M. That's 0.07% of their equity portfolio (129th largest holding). The first JPMorgan Chase trade was made in Q1 2013. Since then Jeremy Grantham bought shares eighteen more times and sold shares on 30 occasions. The stake costed the investor $13M, netting the investor a gain of 131% so far.