Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion
Chinese hedgefund is already trading at Okcoin. More will follow 
I suppose you are joking, but... That rumor was probably responsible for the recent peak. But it could mean something else, and I haven't seen any confirmation/clarification yet.
https://www.cryptocoinsnews.com/okcoin-confirms-new-three-billion-euro-hedge-fund-trading-exchange/
That is the original rumour. In spite of the "confirmed" title, it (and every other news piece like it that I have seen) is entirely based on that phrase spoken by the OKCoin tech guy in that interview. Note that he did not say that the fund invested in bitcoin or was going to trade bitcoin, and said "on our platform" rather than "at our exchange".