Wall Street ended on a flat note amid easing concerns of a possible deeper credit criss after Merril Lynch said that the company may not neet to raise fresh capital. The Dow Jones industrial average moved up 20 points to 12,626. The Nasdaq was up two points at 2,363.Indian ADRs ended on a mixed note. Satyam and Tata Communications soared over 4% each to $24.26 and $27.29, respectively. Sterlite, Patni Computers, MTNL and Dr.Reddy's moved up around 1-2% each. Wipro and HDFC Bank, however, were down nearly 2% each.