(Image: Casino.org)In a warning first obtained by Bloomberg, the United States’ federal regulator of derivatives exchanges instructed prediction markets to stop displaying sports contracts in “American-style” gambling odds. Numerous prediction markets, as of early Friday afternoon, remained at odds of the CFTC letter, according to a Casino.org review. Sports Trading DefenseThe CFTC continues to defend its decision to allow sports trading on prediction markets. The CFTC’s directive that prediction markets stop displaying contract prices as traditional sports betting odds is the regulator’s latest effort to reinforce its position amid legal challenges to that authority. The CFTC prediction markets letter says displaying binary event contract outcomes as odds isn’t allowed.