by Mallika Mitra If you were the kickball team captain on the playground, you tried to pick the teammates who would help you win. If you’re an investor in the stock market, the strategy might have followed you into adulthood. “Whether it's a hedge fund or new-to-market Robinhood traders, there’s a cult of trying to pick the winners,” says Ryan Giannotto, director of research at GraniteShares. But he implements a different strategy: eliminate the losers.