Nir Kaissar is a Bloomberg Gadfly columnist covering the markets. He is the founder of Unison Advisors, an asset management firm. He has worked as a lawyer at Sullivan & Cromwell and a consultant at Ernst & Young. It’s been a long, long time since hedge funds outpaced the market. The HFRI Fund Weighted Composite Index lost to the S&P 500 for eight consecutive years from 2009 to 2016, and it’s on track to lose again this year. The HFRI Index is up 3.5 percent through May, while the S&P 500 is up 8.7 percent, including dividends. It’s not just...