Einhorns Greenlight Gained 2.2% in October

David Einhorn's Greenlight Capital gained over 2% last month, outperforming peers during market volatility. The fund is up nearly 5% this year, while the HFR X Global Hedge Fund index is down 0.5% in 2014. Greenlight plans to accept new investments for the first time in over two years to capitalize on market turmoil.

What does the HFR X Global Hedge Fund index indicate about market performance in 2014?

Why does Green Light plan to accept new money for the first time in more than two years?