Trader Brian Jones on Twitter: "I took a small loss shorting the S&P after after it it opened way up yesterday. About 15 S&P points. I learned my lesson. Don't try and be too cocky shorting the greatest market of all time. Next time I'll think twice." / Twitter

I took a small loss shorting the S&P after after it it opened way up yesterday. About 15 S&P points. I learned my lesson. Don't try and be too cocky shorting the greatest market of all time. Next time I'll think twice.