After-hours buzz: Yahoo, Krispy Kreme, MasterCard & more

Traders work on the floor of the New York Stock Exchange.
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Traders work on the floor of the New York Stock Exchange.

Check out the companies making headlines after the bell Tuesday:

Shares of Yahoo popped after sources told CNBC that the company will not move forward with a spin-off of its stake in Alibaba, and instead examine a deal involving its core business. The move comes amid uncertainty over whether the spin-off of its stake would be taxed.

Firearms maker Smith & Wesson posted earnings that beat estimates, but the stock was slightly lower in after-hours trading amid expectations of stronger guidance. The company did raise its third-quarter earnings and revenue outlook.

Shares of Wynn Resorts surged on news that its CEO has purchased over 1 million shares of the company. Stephen Wynn now owns 11,070,000 shares.

Krispy Kreme fell after revenue missed analysts' expectations in the third quarter. The doughnut maker met earnings estimates but international same-store sales fell nearly 4 percent.

Shares of Costco were just barely higher after the CDC announced that the FDA was unable to confirm E. coli found in celery sold at one of its Montana stores.

Dave & Buster's rallied after the entertainment company delivered quarterly results that blew past Wall Street forecasts. The company also reported comp store sales of 8.8 percent, compared to the 4.9 percent estimate. It also raised its full-year revenue and comp sales guidance.

Shares of MasterCard were slightly higher after its board of directors announced an increase in quarterly dividend and a $4 billion Class A share repurchase program.

Hertz gained after activist investor Carl Icahn upped his stake in the car rental company to 14.3 percent.

Kinder Morgan fell after the company slashed its annual dividend to 51 cents per share from $2.04 per share to maintain its investment grade rating, in what is likely its first cut since going public

Shares of Buffalo Wild Wings inched down after a report that CFO Mary Twinem will retire in February, according to The Wall Street Journal.

— CNBC's Jacob Pramuk and Reuters contributed to this report.