Here are 10 things you should know for Thursday, Oct. 22:

1. -- U.S. stock futures were rising and European shares traded mixed ahead of a European Central Bank policy meeting.

Asian stocks outside China closed mostly lower.

2. -- The economic calendar in the U.S. on Thursday includes weekly initial jobless claims at 8:30 a.m. EDT, the FHFA Housing Price Index for August at 9 a.m., existing home sales for September at 10 a.m., and leading indicators for September at 10 a.m.

3. -- U.S. stocks on Wednesday declined after Valeant Pharmaceuticals (VRX) plummeted and took other biotechs along for the ride.

The biotech sector, however, managed to recoup the worst of the day's losses by market close but bearish sentiment still lingered. The  S&P 500 fell 0.58% on Wednesday, the  Dow Jones Industrial Average slid 0.28%, and the  Nasdaq fell 0.84%.

4. -- eBay (EBAY) - Get Report , the e-commerce company, posted third-quarter adjusted earnings of 43 cents a share, topping the estimates of Wall Street analysts.

During the quarter, eBay completed the spinoff of its PayPal mobile payments unit, which had been eBay's fastest-growing segment. eBay now plans to focus on its marketplace e-commerce business.

Revenue of $2.1 billion in the third quarter met analysts' forecasts.

For the fourth quarter, eBay said it expects earnings of 47 cents to 49 cents a share on revenue of $2.28 billon to $2.33 billion.

5. -- Billionaire investor David Einhorn, whose Greenlight Capital hedge fund has lost 17% this year, told investors on Wednesday that he made new bets on fashion company Michael Kors (KORS) and electric services company UILHolding (UIL) , according to Reuters.

Einhorn also exited a prominent short bet against real estate company St. Joe (JOE) - Get Report as well as bets against U.S. Steel (X) - Get Report , Robert Half (RHI) - Get Reportand Intel (INTC) - Get Report. The firm also liquidated stakes in LAM Research (LRCX) - Get Report and Citizens Financial Group (CFG) - Get Report , Reuters reported.

6. -- AT&T (T) - Get Report said Wednesday that its third-quarter revenue could fall below analysts' estimates.

The telecom giant is scheduled to report earnings after Thursday's closing bell.

AT&T said estimates of third-quarter revenue were "inflated" because analysts didn't appropriately factor in AT&T's acquisition of DirecTV, which closed during the third quarter.

7. -- American Express (AXP) - Get Report said profit in the third-quarter declined 16% from a year earlier. The results missed analysts' estimates as the credit card giant was hurt by higher expenses and remains under pressure from the strong U.S. dollar.

AmEx also cut its full-year forecast.

The company has had a tough year, losing a lucrative agreement to issue branded cards for Costco in February and seeing the demise of its partnership with JetBlue.

8. -- Ferrari (RACE) - Get Report made its debut Wednesday on the New York Stock Exchange and the stock finished the session higher.

Shares of the luxury automaker jumped almost 17% in early trading and settled for the day at $55, up 6%.

9. -- Lego, the Denmark-based toy company, said it's doing so unexpectedly well that its manufacturers won't be able to keep up with demand come December. Right now, the shortage is contained to some European countries, USA Today reported.

"The demand for Lego productsduring the first half of 2015 has been significantly higher than our and our customers' expectations and projections and this has put a strain on the Lego Group's manufacturing facilities globally," Lego press officer Roar Trangbaek wrote in a statement.

Lego's sales in the first half of 2015 increased by 18% from the same period last year. Based on sales, Lego is now the world's largest toy company.

10. -- Earnings are expected Thursday from Alphabet (GOOGL) - Get Report , (AMZN) - Get Report , Caterpillar (CAT) - Get Report , AT&T (T) - Get Report , McDonald's (MCD) - Get Report and Microsoft (MSFT) - Get Report .