US STOCKS-Wall St falls as financials weigh; Twitter tumbles
* AIG shares slip after posting decline in earnings
* Office Depot to close 400 U.S. stores; shares up 17 pct
* Einhorn bets Athenahealth will fall, traders sell
* Indexes down: Dow 0.7 pct; S&P 0.8 pct; Nasdaq 1.1 pct (Updates prices, changes comment, byline)
By Rodrigo Campos
NEW YORK, May 6 (Reuters) - U.S. stocks fell on Tuesday as AIG weighed on financial shares after disappointing earnings and a slide in Twitter took down other names in the technology and internet spaces.
AIG shares fell 4.3 percent to $50.43 a day after posting a 27 percent drop in quarterly income. Financials, down more than 1 percent, were the largest decliners among the S&P 500's top ten industry sectors.
Twitter shares tumbled 15 percent to $32.90 after the expiration of a six-month "lock-up" period that had restricted the sale of about 82 percent of its outstanding stock.
Traders also kept an eye on developments in Ukraine, where supporters of Russia and of a united Ukraine are accusing each other of tearing the country apart. The former Soviet republic is sliding toward war. Continuación...