Here's something else to consider. How can there be such widespread and rampant panic selling when we see no bid/ask and we must rely on brokers to match a block for block transaction. I would think movement would be spotty at best.  Now, if heavy movement in one direction takes place, it contradicts every negative post about buying and selling on the greys, and its near impossibility.  If it can move south quickly, then we can also assume it can move north just as quickly.