Stock futures retreated on Thursday from the previous day's rally after third-quarter U.S. GDP slowed.

S&P 500 futures were down 0.44%, Dow Jones Industrial Average futures fell 0.44%, and Nasdaq futures slid 0.61%.

The U.S. economy slowed significantly in the third quarter, according to the Department of Commerce. The first estimate of quarterly GDP rose 1.5%, lower than an expected 1.6% increase, after a 3.9% reading in the second quarter. Growth was likely weighed down by a stronger U.S. dollar, weaker global demand and the effect of lower oil prices on the energy sector.

Jobless claims rose less than expected in the week ended Oct. 24. The number of new claims for unemployment benefits increased by 1,000 to 260,000, compared to an expected increase to 263,000. Continuing claims fell by 40,000 to 2.14 million. 

Markets moved unpredictably on Wednesday, plummeting before rallying more than 1%, after the Federal Reserve held rates steady but left a potential December rate hike in play. Investors had hoped the Fed would provide further clarification on how likely a rate hike this year might be.

Pharmaceutical companies Pfizer (PFE) - Get Report and Allergan (AGN) - Get Report are reportedly considering a merger, according to reports. The two companies are currently in talks about a potential deal, though disagreements over price could prove to delay proceedings. Allergan shares jumped more than 11% in premarket trading, while Pfizer gained 2.9%.

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Deutsche Bank (DB) - Get Report shares were on watch after the company detailed plans to exit 10 countries and reduce its workforce by around 35,000 jobs. Management also told shareholders it would not offer a dividend this year or next as it focus on restructuring efforts. The bank said it intends to offer a common share dividends beginning fiscal year 2017.

Time Warner Cable (TWC) reported a mixed quarter. The cable company earned $1.62 a share, a nickel above estimates, while revenue of $5.92 billion missed forecasts by $40 million. Overall sales climbed nearly 4% from a year earlier. 

PayPal (PYPL) - Get Report fell 4.3% after reporting its first quarter as a standalone company in more than a decade. The online-payments company earned 31 cents a share, 2 cents above estimates, while revenue of $2.26 billion fell short of forecasts. PayPal added 4 million active customer accounts over the quarter. 

Yelp (YELP) - Get Report jumped 5% after quarterly sales surged 40% to $143.6 million, led by a 35% increase in online reviews. The internet site said it expects fourth-quarter and full-year revenue of at least $149.5 million and $545.5 million, respectively. Sales outlook beat analysts' forecasts. 

Buffalo Wild Wings (BWLD) tumbled more than 13% after reporting its third quarter. The wings chain earned $1 a share, 29 cents below estimates, while total sales missed forecasts. Buffalo Wild Wings reported a same-store sales increase of 3.9%. 

GoPro (GPRO) - Get Report slumped 14% after missing analysts' expectations on its top- and bottom-line. The action camera maker earned 25 cents a share, 4 cents under estimates. CEO Nicholas Woodman said the quarter was "more difficult than anticipated."

Amgen (AMGN) - Get Report added more than 1% on strong quarterly sales tied to its arthritis drug, Enbrel. The biotech company also increased its full-year earnings guidance to between $9.95 and $10.10 a share from previous guidance no higher than $9.80 a share.