The dollar index (DXY00) Tuesday fell by -0.01%. The dollar on Tuesday fell back from a 2-1/2 week high and finished little changed. Better-than-expected US economic news Tuesday on May S&P CoreLogic composite-20 home prices, Jun JOLTS job openings, and Jul consumer confidence supported the dollar. Also, the start of the 2-day FOMC meeting Tuesday sparked short-covering in the dollar. However, the dollar gave up its gains Tuesday when the 10-year T-note yield dropped to a 4-1/2 month low, weakening its interest rate differentials. The US May S&P CoreLogic composite-20 home price index rose +6….