Ahead of the industry's two biggest events, including NAREIT's REITWeek Investor Forum, REIT executives say they see mixed signals in the CMBS marketplace. The sector has enjoyed a solid start to the year, but a recent Fitch report suggests access to capital is a concern. "Not a lot's trading on the CMBS side; it's very interesting," said Simon Property Group CEO David Simon. "At this point, it's just very hard to find the paper. We do expect that logjam to loosen up."