Check out the companies making headlines after the bell Tuesday:
Zulily - The company reported a surprise first-quarter profit of a penny a share, versus a forecast loss of 3 cents a share, but revenue and guidance missed expectations. Shares tumbled more than 20 percent after being halted.
Electronic Arts - Shares jumped nearly 3 percent after the gamemaker beat on the top and bottom lines and announced a $1 billion stock buyback.
Herbalife - The nutritional supplements provider beat first-quarter profit and sales forecast and raised its 2015 guidance, citing lower expenses. The stock rallied more than 16 percent.
Mylan - The drugmaker's shares inched lower after it missed first-quarter revenue estimates, while earnings beat by a penny.
Allstate - The insurance provider's first-quarter earnings of $1.46 a share came in 2 cents above estimates, while revenue trailed. Shares rose modestly in extended trading.
Weight Watchers - The weight management firm reported a narrower-than-expected first-quarter loss, but revenue trailed projections. The stock rose more than 5 percent in after-hours trading.
Groupon - Shares dropped as much as 5 percent after it missed revenue projections, while earning came in above estimates.
SolarCity - The renewable energy provider reported a quarterly loss of 22 cents per share, compared with 26 cents per share, a year ago, according to Reuters. The stock fell more than 1 percent after the announcement.
Western Union - The payment service provider is reportedly in talks to purchase its rival MoneyGram, according to Bloomberg. MoneyGram shares rallied more than 21 percent in after-hours trading, while Western Union inched higher.