While it's probably early to label it a full-fledged resurgence, apartment REITs bounced back in a big way last quarter. The National Association of Real Estate Investment Trusts reported that the FTSE NAREIT All REITIndex was up 31.52 percent in the third quarter--the index's best-ever quarterly gain--bringing year-to-date total returns to 17.73 percent through Sept. 30.