NEW YORK, Aug 4 (Reuters) - U.S. stocks opened lower on Tuesday as a mixed data on June personal consumption and expenditures sparked caution, and investors set out to book profits a day after Wall Street rallied to a fresh nine-month closing high.
* While U.S. consumer spending rose slightly more than expected in June, personal income declined month over month by a greater-than-expected 1.3 percent, the biggest decrease since January 2005, the Commerce Department said.
* The Dow Jones industrial average dropped 17.38 points, or 0.19 percent, to 9,269.18. The Standard & Poor's 500 Index dropped 3.46 points, or 0.35 percent, to 999.17. The Nasdaq Composite Index dropped 11.46 points, or 0.57 percent, to 1,997.15.