US interest rates may be set to rise next month, at the Federal Reserve’s policy meeting, but the outlook for tighter monetary policy isn’t weighing on real estate investment trusts (REITs). Highly prized for relatively rich yields, REITs are said to be among the more interest-rate sensitive slices of the capital markets—not quite as vulnerable as bonds but considerably more so vs. stocks. But that theory looks a bit wobbly these days in the wake of a modest rally in securitized real estate securities.

Indeed, last week’s top performer among the major asset classes: US REITs, based on the Vanguard REIT ETF (VNQ). Although there’s a possibility that the Fed will begin raising rates in September for the first time since 2006, VNQ climbed 1.3% last week—the best performer among a set of ETF proxies that represent the major asset classes.

Granted, the latest leg up may be a reflection of renewed worries about the global macro outlook–worries that have been exacerbated by China’s currency devaluation last week. Then again, the current rally in US REITs predates last week’s turmoil. VNQ has been trending higher since its recent trough at the end of June. So far in the third quarter, VNQ is up 6.9% through Friday’s close (Aug. 14).

From a momentum perspective, there’s still reason to wonder if this is a rally that will endure. Although the upside trend looks firmer, the strength still looks shaky by way of exponential moving averages (EMAs). The 50-day EMA, for instance, remains well below its 100- and 200-day counterparts. Deciding if the current REIT rally will last may depend on whether the bullish momentum continues in the days and weeks ahead and delivers a change in the trend via rising EMAs–the 50-day EMA increases above the 100-day EMA, for instance.

From a fundamental perspective, is there any basis for expecting that REITs can do well in a period of rising rates? Yes, according to Kevin DiSano, chief portfolio strategist at IndexIQ. He recently told Investment News that “there’s a prevailing thinking that REITs don’t do well in a rising-rate environment, but that’s not a given.” Much depends on how the economy fares. If rates are rising because growth is picking up generally, higher rates may not be a headwind for REITs.