ProShares UltraShort Bloomberg Natural Gas (KOLD) is down -21.5%, or -$8.65 to $31.57. Published first on TheFly – the ultimate source for real-time, market-moving breaking financial news. Try Now>> See the top stocks recommended by analysts >> Read More on KOLD: ProShares UltraShort Bloomberg Natural Gas falls -15.5% ProShares UltraShort Bloomberg Natural Gas falls -15.7% Largest borrow rate increases among liquid names ProShares UltraShort Bloomberg Natural Gas rises 14.1% ProShares UltraShort Bloomberg Natural Gas rises 10.3% Disclaimer & DisclosureReport an Issue