Kansas City Star | US STOCKS-Wall Street set for flat open on Greek impasse, data Reuters Sponsored Links. US STOCKS-Wall Street set for flat open on Greek impasse, data. Tweet · Share this · Email · Print. Related News. Wall Street opens flat on Greek impasse, data. 9:39am EST. Euro slips, shares stabilize as Greek deal proves elusive. 7 ... Wall Street opens flat on Greek impasse, data |