It is difficult to answer that question, as it seems some people are desperately trying to liquidate their Bitcoin holdings right now. Selling below the global market average is not that unusual, but with a margin of nearly US$200, something seems to be amiss. Interestingly enough, all of these trades are taking place on the Surbitcoin platform.
Some people assumed these trades were executed due to a bug with the Surbitcoin trading engine. However, that does not seem to be the case, as the platform is working as intended. One thing that could be causing this selling spree is the correlation between the US Dollar and Venezuelan Bolivar.
http://themerkle.com/surbitcoin-sells-bitcoin-at-26-below-global-market-average/
