US STOCKS-Wall St to open flat with Fed statement on tap
* Fed policy statement due at 2:00 p.m. (1800 GMT)
* Adobe, FedEx higher in premarket after earnings
* ConAgra slumps after cutting outlook
* Futures: Dow off 6 pts, S&P off 0.25 pts, Nasdaq up 4 pts (Adds data, updates prices)
By Chuck Mikolajczak
NEW YORK, June 18 (Reuters) - U.S. stocks were poised for a flat open on Wednesday, after a three-day winning streak for the S&P 500 index and ahead of a monetary policy announcement by the Federal Reserve.
* The Fed is widely expected to announce another $10 billion cut to its monthly bond purchases as it wraps up a two-day policy meeting at 2:00 p.m. (1800 GMT), but is likely to make few, if any, other concrete policy moves. Investors will be attuned to whether officials may tip their hand on longer-term plans for interest rates.
* The benchmark S&P index has risen 0.6 percent over the last three days, as investors largely shrugged off mounting tensions in Iraq amid a flurry of merger and acquisition activity and better-than-anticipated manufacturing data.
* Saudi Arabia said on Wednesday Iraq faced the threat of full-scale civil war with grave consequences for the wider region and, in an apparent message to arch rival Iran, warned against outside powers intervening in the conflict. Continuación...