Gina Francolla is the Senior Producer of Quantitative & Market Data Services at CNBC.
Although tech and energy make up 57 percent of the deals this year, the most successful IPO, based on price appreciation, is GNC, a nutritional-product retailer that went public back in April for $16 a share and is up nearly 75 percent since then.
Coffee, one of the most actively traded commodities in the world, has steadily gone up in price since early 2002, up 410 percent through its highs in May 2011.
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.