US STOCKS-Wall St up on ECB bets but details, IBM cap gains
* IBM shares fall, Netflix rallies after results
* ECB set to announce bond purchases: reports
* Crude oil rises but still sharply down for week
* Indexes up: Dow 0.2 pct, S&P 0.4 pct, Nasdaq 0.3 pct (Updates prices, changes comment, byline)
By Rodrigo Campos
NEW YORK, Jan 21 (Reuters) - U.S. stocks edged up in a choppy Wednesday session as traders digested reports that new stimulus would be announced by the European Central Bank at its Thursday meeting, while declines in IBM and Microsoft also limited the gains.
Market participants have been looking for more aggressive measures from central banks, specifically the ECB, to combat the risk of deflation and a weakening euro zone economy. A source told Reuters that the ECB's Executive Board has proposed a program that would enable the bank to buy 50 billion euros ($58 billion) in bonds per month starting in March. ECB President Mario Draghi will speak to the media at 1330 GMT on Thursday.
"The ECB rumor was very important. The market's perception was that Draghi was going to disappoint tomorrow in the magnitude" of the program, said Phil Orlando, chief equity market strategist at Federated Investors in New York.
He said, regardless of the size of the expected purchase program, there are many details in terms of the assets available for purchase and how those will affect individual members of the bloc. Continuación...