Gina Francolla is the Senior Producer of Quantitative & Market Data Services at CNBC.
Paraskevidekatriaphobia is the fear of Friday the 13th. For the stock market, however, this 'unlucky' day tends to be relatively calm.
Ahead of the presidential election, CNBC created the CNBC Obama Index and the CNBC Romney Index featuring companies that could be viewed as winners or losers depending on the outcome of the race.
After rising to a new 4-year high last month, utilities are now the only large S&P sector trading in the red this year.
Earlier in the session, Big Lots shares were down as much as 21.8 percent, their worst intraday loss since Nov. 2008.
Paraskevidekatriaphobia is the fear of Friday the 13th, but investors should not be too frightened.
Investors are celebrating the second strongest bull run since World War II.
Demand for small-cap stocks is increasing relative to established large-cap names.
With stocks up, short interest reached the highest level in 20 months, but some investors see the trend as a bullish sign.
Since the S&P 500 closed at a 3½-month low of 1,741.89 on Feb. 3, 2014, the index is now up 6 percent.