US STOCKS-Wall St loses ground for fourth day in five
* U.S. stock indexes poised for worst week since June
* Priceline gains on results, headed towards $1,000 a share
* BlackBerry open to going private, sources tell Reuters
* Dow down 0.7 pct, S&P 500 off 0.4 pct, Nasdaq off 0.2 pct
By Chuck Mikolajczak
NEW YORK, Aug 9 (Reuters) - U.S. stocks fell on Friday, putting the three major indexes on track for their worst week since June, as investors found little incentive to buy with equity prices not far below last week's record levels.
Wall Street has struggled this week, making small moves in light volume, as an absence of trading incentives kept buyers at bay. Comments from Federal Reserve officials, which created confusion over when the central bank would begin to scale back its stimulus policy, further added to uncertainty.
The lack of clarity over the Fed's plans gave investors a compelling reason to pull a record $3.27 billion out of U.S.-based funds that hold Treasuries in the latest week ended Aug. 7, data from Thomson Reuters' Lipper service showed on Thursday.
Richard Fisher, president of the Federal Reserve Bank of Dallas, reiterated late Thursday that the central bank will probably begin cutting back on its massive bond-buying stimulus next month, as long as economic data continues to improve. Continued...