Taking the top spot among the winners is Robbins with three "long" calls, two of which have far outperformed markets.
Robbins focused on the health-care sector, specifically two HMO companies—which he identified as the only subsector within health care that hadn't yet recovered: Humana and WellPoint (WellPoint changed its name to Anthem in August and started trading on the NYSE under ticker ANTM in December). Humana shares have surged 54 percent, while Anthem shares have gained more than 50 percent since May 5.
Robbins, founder of Glenview Capital Management, also recommended going long the agricultural biotechnology company Monsanto on the premise that with an estimated 9 billion people in the world by the year 2050, the best option for meeting demand would be GMO seeds. Robbins said you "simply can't solve world hunger on an organic basis." Monsanto shares are up more than 5 percent since Robbins' long call.
Read MoreChipotle to Stop Serving Genetically Altered Food
The runner-up spot goes to Zach Schreiber, who correctly predicted the imminent crash in crude prices with his short call on domestic oil, telling the audience, "it's going lower, much lower."
It was a counterintuitive call—at the time, there was a $33 billion net long on benchmark West Texas Intermediate, with prices hovering consistently in the $90-$100 a barrel range—but, the bearish bet paid off in a big way, with crude oil tumbling 40 percent from May 5 and Schreiber reportedly making $1 billion on his short.
Schreiber, who co-founded PointState Capital in 2011, also laid out his long case for Valero Energy and Marathon Petroleum—based on a high probability of a WTI-Brent disconnect. He pointed out that U.S. refiners would benefit from a durable spread since they buy at WTI prices and sell at Brent crude prices.
Schreiber's long on U.S. refiners hasn't played out as well as his short on crude. Marathon shares have gained only 3 percent, while Valero shares are down 2 percent since May 5. To be fair, though, all the details are not available on how his thesis may have changed as the year progressed.
Chris Shumway, founder and managing partner of Shumway Capital, provided a winning pick with Moody's—which he identified as a "global duopoly," along with S&P, within the credit-rating and analytics space. Shumway noted MCO's potential to increase its revenue by 10 percent to 13 percent annually if the company expanded internationally. Moody's shares have gained more that 36 percent since his long call.
Additional winners include Philippe Laffont of Coatue Management with a long call on Liberty Global which is up 27 percent, and Mariko Gordon, founder and CEO of Daruma Capital, who had one of her long picks, Electronics for Imaging, gain nearly 12 percent since last year's conference.