Bitcoin is looking at red flags in its year-to-date price rally because of its short-term correlation with the S&P 500 index. Doug Ramsey, the chief investment officer of the Leuthold Group, predicts that the U.S. benchmark is at the risk of falling by 32 percent. The prediction leaves Bitcoin under serious downside risks, doubled further after concerns about a major sell-off after halving. Bitcoin last week rallied above $10,000, eking out bigger intraday gains than […]