By Bloomberg News Commodity markets have gone haywire — and hedge funds with picture-perfect timing are set to rake in stellar profits. As U.S.-China trade tensions escalated mid-June, fast-money traders flipped to a short position in metals overall, subsequently extending bearish wagers to a record coming into the maelstrom of the past few days. Hedge funds’ net position stood at a negative 51 percent in precious metals and negative 37 percent in base metals as of Tuesday, according to Credit Suisse Group AG prime services.