* Jobless claims unexpectedly fall, U.S. Sept. exports rise
* ECB holds main interest rate steady at 0.75 percent
* Qualcomm rises after revenue tops view, Whole Foods falls
* Futures up: Dow 50 pts, S&P 2.5 pts, Nasdaq 9 pts
NEW YORK, Nov 8 Wall St was set to rise slightly at the open on Thursday after stronger-than-expected U.S. job market data and a rise in exports a day after stock indexes posted the largest drops in months.
Data showed the U.S. trade deficit narrowed in September as exports increased, suggesting the economy expanded more than previously estimated in the third quarter, while fewer Americans than expected filed new claims for unemployment benefits last week.
The jobs data was distorted by a massive storm that hit the U.S. Northeast last week, though it wasn't clear if Hurricane Sandy's net effect was to boost or reduce claims.
"We've seen a big spike in the trend of the jobs market in the past few months," said Adam Sarhan, chief executive of Sarhan Capital in New York. "We should react positively to this."
Equities slumped more than 2 percent Wednesday as investor focus returned to Europe's economic troubles and as the electoral victory by President Barack Obama turned markets' focus to the looming "fiscal cliff."
Investors worry that if no deal is agreed in Congress over some $600 billion in spending cuts and tax increases due to kick in early next year, it could derail the U.S. economic recovery.
"To the extent we start to see some clarification of what (Congress) is thinking about, whatever it may be, it will provide some confidence," said Rick Meckler, president of investment firm LibertyView Capital Management in Jersey City, New Jersey.
He said the open-ended nature of what the fix may be for taxes has flooded markets with uncertainty.
S&P 500 futures rose 2.5 points and were up in terms of fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures added 50 points and Nasdaq 100 futures rose 9 points.
Wednesday's retreat marked the biggest daily drop for the S&P 500 since June 1; the index closed below the key 1,400 level for the first time since Aug. 30. Despite Wednesday's selloff, the benchmark S&P 500 is still up more than 10 percent so far this year.
Qualcomm Inc late Wednesday reported quarterly revenue that beat expectations, sending shares up more than 8 percent in premarket trading.
Whole Foods Market Inc reported earnings that met expectations but its shares fell 2.2 percent before the bell.
Futures briefly strengthened earlier as the euro cut losses versus the U.S. dollar after the European Central Bank held its main interest rate at 0.75 percent despite dovish comments Wednesday from ECB president Mario Draghi that stirred market rumors of a rate cut. A rise in the U.S. dollar also weighed on equities Wednesday.