I vaguely recall in the heydays of 2011 or so, we experienced a whipsaw effect that took us from somewhere in the high 80s down into the low 60s, or something like that. Then we were right back into the high 80s again. It played out in 15 minutes or less. 

A lot of shares changed hands. And surely many panicked sellers -- or those who set stop-losses -- wound up regretting it. 

We know what we have here. We just don't know how soon we get to cash out. Tick-tock, Elmer!!!