Check out which companies are making headlines after the bell Monday:

Yahoo is surging in after-hours trading as Wall Street cheered the search giant's revenue growth. The Internet firm posted fourth-quarter earnings of 32 cents per share, beating forecasts for 28 cents. Revenue grew 4.4 percent to $1.22 billion. For the first quarter, Yahoo expects revenue to be $1.07 billion to $1.1 billion, below Street forecasts for $1.12 billion. (Click here for the latest after-hours quote)