BFX alone had ~270k for the candle
Here is the market data for the day
when i look at the finex charts here it shows over 500k coins were dumped mid january. that's insane. far more than bitstamp and btc-e.
Well, I only highlighted the bottoming candle. The one previous had an additional 150k or so so that brings the two day total to over 400k
Bitstamp was already losing market share due to their hack a couple of weeks prior and BTC-e has never really compared in volume except MAYBE when BFX was new and using the Stamp book for liquidity. Back then, 90%+ of BFX volume was traded on stamp/Gox too (early 2013 or late 2012, I don't recall exactly when).