I would rather explain this by goxbux cashout. Other exchanges are not following the widening bid/ask spread at all.
There's another way to look at it, a better one IMO: dynamically/as change over time.
In that view, bid/ask
depth ratio (price normalized in the charts below) on
bitstamp and btcchina has been largely stable for the past week, with a very weak decline until yesterday, and a slight upwards slope since today, while the ratio
went trough the roof on mtgox.
I take that as a pretty positive sign. Doesn't mean I'm sure we're going up, further consolidation is still quite likely, but I don't see many bearish signs on the order book.
