the numbers the sp corelogic caseshiller 20city index posted a 212 yearoveryear gain in april up slightly from 211 in the previous month a separate report from the federal housing finance agency showed a 16 monthly gain and over the last year the fhfa index was up 188 key details tampa miami and phoenix reported the highest yearoveryear gains among the 20 cities in april big picture sharply declining affordability should start to restrain house price appreciation over the remainder of the year but industry reports don’t suggest any slowdown in april said lou crandall chief economist of wrightson icap in a note prior to the release of the data the cost of borrowing has increased dramatically since last year with the average on the 30year fixedrate at 581 according to freddie mac last year around the same time that rate was at 302 market reaction stocks djia spx were set to open higher on tuesday the yield on the 10year treasury note tmubmusd10y rose to 323