Market Movers Today: Walmart Inc (WMT), Voyager Therapeutics Inc (VYGR), Noble Energy, Inc. (NBL), and More

Walmart Inc (NYSE:WMT) (The Motley Fool)
What happened: Shares of Walmart (NYSE:WMT) were tumbling today after the retail giant posted disappointing results in its fourth-quarter earnings report. Growth in the hot e-commerce division slowed and the company reported a lower-than-expected profit for the key holiday quarter. As of 11:01 a.m. EST, the stock was down 9.8%. So what: The stock’s slide may have had more to do with inflated expectations than weakening performance as strong comparable sales (comps) continued.

Voyager Therapeutics Inc (NASDAQ:VYGR) (Benzinga)
Voyager Therapeutics Inc climbed 20.5 percent to $23.32 as the company announced plans to collaborate with Abbvie on treatments for Alzheimer’s disease.

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Noble Energy, Inc. (NYSE:NBL) (Reuters)
(Reuters) – U.S. oil and gas producer Noble Energy Inc (NBL.N) reported adjusted quarterly profit on Tuesday that easily beat analyst estimates due to cost cuts and higher crude prices, sending shares surging more than 7 percent in morning trading. The results came as Noble’s U.S. shale oil production jumped in the fourth quarter through Dec. 31, reflecting the greater attention the industry is giving to improving profit and output. Houston-based Noble plans to spend $2.8 billion each year through 2020, about 6 percent more than it spent in 2017.

MiMedx Group Inc (NASDAQ:MDXG) (MarketWatch)
Biotech MiMedx Group Inc.’s shares MDXG, -38.08% were halted in premarket trade after falling 23%, for news that the company is delaying the release of fourth-quarter and full-year 2017 earnings to conduct an accounting review. The audit committee has hired legal and accounting advisers to conduct an internal investigation of allegations relating to sales and distribution practices. Executives are reviewing the accounting treatment of certain distributor contracts, among other items.