ProShares Ultra Bitcoin ETF (BITU) is up 13.8%, or $5.01 to $41.40. Published first on TheFly – the ultimate source for real-time, market-moving breaking financial news. Try Now>> See today’s best-performing stocks on TipRanks >> Read More on BITU: ProShares Ultra Bitcoin ETF rises 6.4% ProShares Ultra Bitcoin ETF rises 11.0% ProShares Ultra Bitcoin ETF rises 9.5% ProShares Ultra Bitcoin ETF rises 10.5% ProShares Ultra Bitcoin ETF falls -5.8%