Peoples reluctance to keep cash on stamp seems to keep this train from flying off the rails.
right now stamp is nothing(check the volume stats)
But it's almost 6000 to $300 on stamp and just 1360 on finex. So low volume on stamp means low price on stamp. And the price won't let there be more than $10-12 difference between the two for any length of time.
Thats because there is hardly any fiat on Stamp. Its almost as if the market thinks that if they buy coins there and try and withdraw them en mass they may not exist, I wonder why the market might think that

Once bitten twice shy, people slowly learn their lessons and don't deal with exchanges that refuse to prove their reserves or even answer any questions about the state of their solvency.