CNBC TV personality and “Mad Money” host Jim Cramer has built a lucrative career as a stock picker, but a new analysis of his charitable fund—a personal stock portfolio he co-manages that the financial website he founded has built a subscription service upon—shows he doesn’t beat the market. Cramer’s Action Alerts Plus portfolio has underperformed the S&P 500 index SPX, -0.85% in terms of total cumulative returns since its 2001 inception, according to a working paper released Friday by Jonathan Hartley and Matthew Olson, researchers from the Wharton School at the University of Pennsylvania. While the fund ... (full story)