NEW YORK, Oct 6 (Reuters) - Wall St edged lower at the open on Wednesday as an unexpectedly poor reading on private-sector hiring added to caution ahead of a critical non-farm payroll report later in the week.
* The Dow Jones industrial average shed 1.21 points, or 0.01 percent, to 10,943.51. The Standard & Poor's 500 Index lost 0.95 points, or 0.08 percent, to 1,159.80. The Nasdaq Composite Index fell 6.58 points, or 0.27 percent, to 2,393.25.