Bitcoin exchange Kraken ending margin trading for some U.S. clients

peshkov/iStock via Getty Images Bitcoin (BTC-USD) exchange Kraken said it will end margin trading for some U.S. residents starting June 23 due to new regulatory guidance. Margin trading will be remain available to U.S. clients who meet certain requirements, according a post from Kraken. U.S. clients that don’t meet the requirements will only be able to reduce, close out or settle their existing margin positions, but won't be able to open new margin positions. Last week, Kraken started its cryptocurrency exchange app to the U.S., putting it in direct competition with Coinbase (COIN). Also see last week, Bitcoin 2021 convention: Focusing on adoption, not the price.