Benzinga.com named the manufactured housing industry as one of the worst performing categories on Friday. Down more than three percent earlier in the day, the situation seemed to improve somewhat by the close of business. The Manufactured Housing Composite Value ended down 1.3 percent. The biggest decline was with shares of Deer Valley Corp, down more than five percent to close at $1.09 a share. Cavco, Drew Industries and Skyline Corp. were each off more than one percent. The Dow closed down 22 points.