United Airlines, American Airlines - Airline stocks were hit hard during Friday's sell-off, as the new Covid variant sparked travel restrictions.

Marriott International, Airbnb — Travel stocks took a hit after news of the new Covid variant.

Carnival, Royal Caribbean — Cruise line stocks also retreated as Covid fears swelled.

Live Nation, Las Vegas Sands — Entertainment and Casino stocks fell amid news of the new Covid variant.

Moderna, Pfizer — Vaccine makers saw their shares rally after the Covid variant news.

Other health-care stocks also gained as Covid fears grew.

oil slid more than 9%, falling to the lowest level in two months amid fears over the new Covid variant.

Bank of America, Citigroup — Bank stocks tumbled on Friday as the new Covid variant raised fears about economic growth and drove Treasury yields lower.