The big buy this morning on bitfinex didn't affect the price on huobi very much. While on bitstamp and bitfinex the price was rising, not much happened on huobi. Seems that without the support of the chinese we won't go up. It can sometimes be seen that the price bounces back if the other exchanges don't move. I think it's because of arbitrage trading?
Yes i believe it is a lot of arbitrage trading going on. But at least the exchanges are staying healthy making commission.