A wildly popular trade that involves buying proven stock-market winners just saw its biggest outflow on record

Alvaro Barrientos/AP A stock-market strategy that involves betting on proven winners — also known as momentum trading — saw a record $1.6 billion in outflows in October, according to Bloomberg data going back to 2012. Most of the withdrawals came from traders pulling more than $1 billion out of the iShares Edge MSCI USA Momentum Factor ETF, Bloomberg found. The rotation is coming as investors shift funds away from growth sectors and into value stocks. Visit the Business Insider homepage for ...