Trader Brian Jones on Twitter: "I don't remember trading back in Oct 2008 very well. But it must of been like this. Just unbelievable moves intraday. If we sell off on the close. It's going to be a big surprise to almost all traders." / Twitter

I don't remember trading back in Oct 2008 very well. But it must of been like this. Just unbelievable moves intraday. If we sell off on the close. It's going to be a big surprise to almost all traders.