RIYADH: Bitcoin, the leading cryptocurrency internationally, traded lower on Monday, falling by 1.48 percent to $42,558 at 6:51 p.m. Riyadh time. Ether, the second most traded cryptocurrency, was priced at $3,241 down by 3.14 percent, according to data from Coindesk. Other news The Monetary Authority of Singapore issued on Monday guidelines restricting cryptocurrency trading