NEW YORK (TheStreet) -- It's been a banner year for billionaire hedge fund magnate Bill Ackman. According to a recent Bloomberg report, his Pershing Square International fund has climbed 33% year-to-date, even managing to make a 0.7% gain in an extremely volatile October.
What is perhaps most noteworthy is the fact that just a handful of investments are driving Ackman's success. As of his latest 13F filing, the billionaire has just six stocks in his equity portfolio.
Here's a look at the companies that are propelling Bill Ackman's extraordinary 2014 run.
1. Allergan (AGN)
Allergan became Bill Ackman's most headline-grabbing move of the year when in April he disclosed a 9.7% stake in the Botox maker. He subsequently teamed up with Valeant (VRX) for a hostile takeover bid.
While the battle for Allergan is far from over, Ackman's largely already won. As of market close yesterday, Allergan has climbed 39.01% since Valeant and Pershing Square unveiled their intentions on April 22.
On paper, Ackman has gained nearly one billion dollars.
2. Air Products and Chemicals (APD)
Bill Ackman took an activist stance on Air Products and Chemicals in the third quarter of 2013. As of his most recent SEC filing, Pershing Square holds 20.55 million shares in the company. In February, Ackman said he believes the company's stock price could double under the correct management.
APD recently beat expectations on fiscal fourth-quarter earnings but fell short on revenue. Its price has climbed 25.01% over the past year, including 4.93% in the last month.