Check out which companies are making headlines after the bell on Monday:
Shoe Carnival shares fell more than 10 percent after the retailer released its quarterly earnings report. The company reported earnings of 54 cents a share on revenues of $275 million, missing estimates for both figures. Analysts expected EPS of 56 cents on revenues of $278 million. The company reported weak November sales and now expects fourth-quarter comparable sales of between 1 percent growth and a 1 percent decline.
TiVo shares jumped more than 3 percent after the company signed a licensing agreement with Netflix. TiVo will integrate the streaming giant into its set-top boxes. It will include searches across the content catalog and a Netflix button on remote controls. A separate agreement between the two companies gives Netflix a license to TiVo's patent portfolios.
United Health Group shares rose more than 2 percent after the company raised its guidance for 2017.
The health care company now expects adjusted earnings between $9.30 and $9.60 a share in 2017, well above estimates of $9.14 a share. The company is also now expecting 2017 revenues between $197 billion and $199 billion, above estimates of $196.6 billion.
Its expected earnings and revenue for 2016 were about in line with estimates.
Thor Industries shares got a jolt after the company reported a big earnings beat, jumping more than 6 percent. The RV manufacturing company reported earnings of $1.49 per share on revenue of $1.71 billion, crushing EPS estimates of $1.23 a share and sales estimates of $1.5 billion. CEO Bob Martin said he believes 2017 will be one of the strongest years for wholesales shipments for the industry since the 1970s."
—CNBC's Julia Boorstin contributed to this report.