Coinbase has suspended trading in BTC and other cryptocurrencies
All buying and selling is disabled says their website. Says "temporarily disabled".
I guess this is the sort of thing Goldman Sachs will have to address in their considerations to open a crypto trading desk. Exchanges going offline is a business risk. It makes hedging and clearing positions very difficult indeed, even if its just "temporarily disabled".
I posted this just a few moments ago and not much movement since then:
