Top-rated bonds backed by commercial real estate loans are rising at a “torrid” rate as investors snap up the safest debt in the class amid climbing delinquencies, according to Barclays Capital. “The CMBS rally continued its torrid pace, led by the senior portion of the capital structure,” Barclays analysts led by Aaron Bryson said in a March 19 report. Yields on top-ranked securities backed by skyscraper, hotel and shopping-mall loans fell 0.31 percentage point to 3.5 percentage points more than benchmark swap rates last week, the lowest in six months, according to BarCap.