Gainers

• SemiLEDs LEDS shares are trading higher after traders noticed the company's subsidiary, TSLC, offers a product line of UVC LED for air cleaning and disinfecting.
• WW WW shares are trading higher after the company reported better-than-expected Q4 EPS and sales results. The company also issued FY20 EPS and sales guidance above estimates.
• Alarm.com ALRM shares are trading higher after the company reported better-than-expected Q4 EPS and sales results. The company also issued FY20 total sales and EPS guidance above estimates.
• Infinera INFN shares are trading higher after the company reported better-than-expected Q4 EPS and sales results.

Losers

• Insulet PODD shares are trading lower after the company reported worse-than-expected Q4 EPS results.
• Unisys UIS shares are trading lower after the company reported worse-than-expected Q4 EPS and sales results.
• SmileDirectClub SDC shares are trading lower after the company reported worse-than-expected Q4 EPS and sales results.
• Salesforce.com CRM shares are trading lower after the company reported Q4 earnings results.
• Iovance Biotherapeutics IOVA shares are trading lower after the company reported worse-than-expected Q4 EPS results.
• Exelixis EXEL shares are trading lower after the company reported worse-than-expected Q4 sales results. The company also issued FY20 sales guidance below estimates.
• Revolve RVLV shares are trading lower after the company reported worse-than-expected Q4 sales results. The company also issued FY20 sales guidance below estimates.
• Vicor VICR shares are trading lower after the company reported worse-than-expected Q4 EPS and sales results.
• Virgin Galactic SPCE shares are trading lower after the company reported Q4 net loss of $72.743 million vs loss of $49.752 million in the same quarter last year. The company also reported worse-than-expected Q4 sales results.
• Toll Brothers TOL shares are trading lower after the company reported worse-than-expected Q1 EPS and sales results.