Dow rises 23 points to close at highest level in 34 months. But stocks on Nasdaq edge down.
Dow Industrials fall 242 points. Stocks on S&P 500 and Nasdaq indexes also drop to lowest levels of the year.
Obama's actions, more than his speech, will have a big role to play in easing the historically bleak consumer mood.
The Treasury's $700 billion rescue would push US into uncharted territory.
The final tab may exceed that of the savings and loan bailout, depending on the depth of the housing slump.