Margin Trading has been active for a while and longs have increased about $2 million in last 7 days shorts are currently about 1.5K btc
Finex now #7 by 24hr. volume.
7 Bitfinex BTC/USD $ 2,273,800 $ 574.71 3.84 % Recently
sad trombone.
At this point, we cannot completely attribute the cause of the loss of volume - yet a fair inference does come from loss of confidence. On the other hand, before the "hack", quite a bit of Bitfinex's volume seemed to have come from margin trading, which appears to have not been re-enabled, yet.