U.S. REITs continued to outperform the broader equity market through the first four months of 2016, the National Association of Real Estate Investment Trusts (NAREIT) reported. The FTSE NAREIT All REITs Index, the broadest measure of the U.S. REIT market including both Equity REITs and Mortgage REITs, delivered a 4.09 percent total return for the first four months of the year.