Take a look at the top companies in Friday’s midday trading:

United Airlines, American Airlines – Airline stocks were hit hardFriday’s stock-off saw the new Covid variantYou are the spark travel restrictions.American shares dropped by more than 12% and 11% respectively, according to the latest data. DeltaAircraft maker lost around 11% BoeingThe decline was more than 7 percent

Marriott International, Airbnb — Travel stocks took a hit after news of the new Covid variant. Hilton and Marriott hotel stocks fell more than 10% and 8.8% respectively. Airbnb lost more than 5% Expedia lost more than 11 percent.

Carnival, Royal Caribbean — Cruise line stocks also retreated as Covid fears swelled. Carnival lost more than 12 percent, Norwegian Cruise Line fell roughly 13% and Royal Caribbean dropped more than 11%.

Live Nation, Las Vegas Sands — Entertainment and Casino stocks fell amid news of the new Covid variant. Live Nation, Las Vegas Sands and both were down over 7%. Wynn ResortsAnd it fell by more than 8% Penn National GamingThe decline was greater than 22%

Macy’s, Gap — Retail stocks were hit hard FridayIn what is usually one of the busiest shopping weekends of the year, The shares of department store chain Macy’s were down more than 6%, while Gap fell around 3%. NordstromMore than 7 percent of your earnings were lost. Nike was down more than 1%. shares of Simon Property GroupThe largest U.S. mall operator, Xerox, saw its stock drop by more than 5%. Grocery store chains have been thriving. KrogerAn additional 3% was added

Zoom Video – Zoom Video shares jumped more than 6%, as investors piled into stay-at-home stocksDespite widespread market declines. Peloton gained more than 3 percent. The stocks are down significantly for 2021 because investors have moved into the areas of the economy that have been able to benefit from the economic opening.

Moderna, Pfizer — Vaccine makers saw their shares rally after the Covid variant news. Moderna rose by over 24% while Pfizer increased more than 5 percent. BioNTechGained more than 19% NovavaxAbout 9% was added. Covid worries grew, and other health-care stocks gained. Quest Diagnostics saw a nearly 4 percent increase, and Incyte gained more than 33%.

Merck — Merck shares retreated 4.1% after the drugmaker’s experimental Covid-19 pill showed a lower efficacy rateThis study includes more updated data than what was previously available.

Occidental Petroleum – Shares of the exploration and production company tumbled 11.1% amid a broad decline in energy stocks. U.S. oil slidFears over the Covid variant led to a drop of more than 9% and the low point in just two months. Marathon Oil, Devon Energy APAAll fell around 10%. Every component in the S&P 500 energy sector declined during Friday’s holiday-shortened trading session.

Bank of America, Citigroup — Bank stocks tumbled on Friday as the new Covid variant raised fears about economic growth and drove Treasury yields lower. Bank of America shares and Citigroup both lost over 4%, respectively. Goldman SachsThe drop was around 3%

Didi Global — Shares of Didi fell more than 6% after a report that the ride-sharing company has been asked by Chinese regulators to delist from the New York Stock Exchange. According to reports, the request to remove ride-hailing company from the list was made because of concerns over data security.

Tesla — Tesla shares slid 1.4% after a report that the company will invest $188 million to expand production capacity at its Shanghai factory.

— CNBC’s Jesse Pound and Pippa Stevens contributed reporting