Trader Brian Jones on Twitter: "Calling the market to drop today like I did was easy. But after it drops 58 on the S&P. You have to lock in some profits just in cash you get a fake rally off lows. That's why they call it trading." / Twitter

Calling the market to drop today like I did was easy. But after it drops 58 on the S&P. You have to lock in some profits just in cash you get a fake rally off lows. That's why they call it trading.