Score: 82.7 Homebuyers aren't showing the Philadelphia metro area much brotherly love, with the market trailing U.S. averages in almost every metric that RealtyTrac looked at. Blomquist says Philadelphia housing is doing a particularly bad job of attracting institutional investors, defined in the study as any company or individual who buys 10 or more properties a year anywhere in America. RealtyTrac found that such buyers account for just 3% of property deals in Philadelphia, compared with 9% nationwide. "Philadelphia is a market that institutional investors are just not very interested in." Philly has also seen a sub-par 32% decline in foreclosure filings, while median home prices have rebounded only a below-average 16% from their March 2012 bottom.