(Bloomberg) -- XRP, the cryptocurrency that has been the focal-point of a long running legal battle between its issuer and the SEC, slumped as much as 11% after the agency appealed an earlier court ruling that was viewed as favorable for the company. Most Read from BloombergThe Corner Store ComebackA Housing Crisis Brews in Rwanda’s Capital CityGang Violence Is Moving to the Amazon’s Fast-Growing CitiesA 7,000-Year-Old City Emerges as a Haven from Dubai’s Sky-High RentsRoofs of Mexico City’s Mas