Updated from 7 a.m. EST.

NEW YORK (TheStreet) -- Here are 10 things you should know for Thursday, Feb. 5:

1. -- U.S. stock futures were rising slightly on Thursday following a move by the European Central Bank to withdraw a key borrowing option for Greece's banks.

European stocks moved lower after the ECB decided late Wednesday that it wouldn't accept Greek bonds as collateral from lenders.

Asian stocks finished Thursday's session mixed.

2. -- The economic calendar in the U.S. on Thursday includes weekly initial jobless claims at 8:30 a.m. EST, and the U.S. trade balance for December at 8:30 a.m.

3. -- U.S. stocks on Wednesday finished mixed, buoyed by a rally among telecom companies but battered by a fresh slide in crude oil prices. 

The S&P 500 fell 0.42% and the Nasdaq declined 0.23%. The Dow Jones Industrial Average eked out a 0.04% gain.

4. -- Pfizer (PFE - Get Report) reached a deal to buy Hospira (HSP) , a maker of injectable drugs and infusion technologie, for about $15.2 billion.

Pfizer will pay $90a share in cash, which is a 39% premium to Hospira's closing price on Wednesday of $64.80. 

Pfizer shares rose 2.3% in premarket trading. Hospira jumped 35.3% to $87.70.

5. -- Social media Web site Twitter (TWTR - Get Report) is expected by analysts to report on Thursday fourth-quarter earnings of 6 cents a share on revenue of $453.1 million.

More important, however, is whether investors will be satisfied with Twitter's efforts to turn around slowing growth and make its product more appealing.

Meanwhile, The Wall Street Journal reported Twitter has agreed to give Google (GOOGL) access to its stream of data, in a move that could make it easier for tweets to appear in search results.

6. -- Anthem (ANTM - Get Report) , the nation's second-largest health insurer, said hackers infiltrated its computer network and accessed a host of personal information about current and former customers, including their Social Security numbers, incomes and street addresses.

Anthem said it was contacting customers affected by the "very sophisticated" cyberattack. It did not say how many people were affected. 

7. -- Sprint (S - Get Report) , the nation's No. 3 telecommunications company, is forecast to report a third-quarter loss of 24 cents a share on revenue of $8.68 billion.

8. -- Industry executives said Apple (AAPL - Get Report) is in talks with TV programmers about deals that would allow Apple to offer an "over the top" pay-TV service, like the one Dish  (DISH) has started selling with its Sling TV product, and the one Sony  (SNE) is getting ready to launch, Re/code reported.

Apple has shown programmers demos of the proposed service, sources told Re/code. But talks seem to be in the early stages, which means terms like pricing and timing aren't close to being ironed out. Several programmers said they've yet to start talks with Apple at all.

9. -- Yum! Brands (YUM - Get Report)  reported a fourth-quarter loss as sales in China fell 11%. Sales at existing stores in the country declined 16%.

China accounts for about half of Yum!'s sales. The owner of KFC, Taco Bell and Pizza Hut restaurants has been swept up in a food supplier scandal.

The loss in the period was 20 cents a share. Excluding items, earnings were 61 cents a share, down from year-earlier profit of 86 cents.

Yum! rose 0.8% in premarket trading.

10. -- Sports apparel maker Under Armour (UA - Get Report) reported fourth-quarter profit of 40 cents a share, exceeding Wall Street estimates by a penny, as revenue jumped 31% from a year earlier to $895.2 million.

Under Armour also said it acquired weight loss app MyFitnessPal for $475 million.

The stock fell 0.4%.

-- Written by Joseph Woelfel

To contact the writer of this article, click here:Joseph Woelfel

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