These are the headline-grabbing companies in midday trading.

Harley-Davidson — Shares of the motorcycle maker jumped about 7% after the company announced its electric motorcycle unit, Livewire, will go publicThrough a merger of a special-purpose acquisition company (SPAC). It is estimated that the deal will be worth approximately $1.8 billion. The transaction will trade on New York Stock Exchange as “LVW”.

Pfizer — Shares of the vaccine maker jumped more than 4% after a new Israeli study showed its Covid booster shot provides strong protection against severe illness from the omicron variant. Its partner BioNTechShares rose 8.2% following the announcement. In separate news, the company made it public. will acquire drug developer ArenaPharmaceuticals at $6.7 billion cash ArenaShares of’s rose by 79%

Meme stocks — Speculative stocksThese were popular among retail investors, but they have fallen in popularity as Reddit traders abandon their risky positions. GameStopIn midday trading,’s shares fell 12.7%. AMC Entertainment lost 15.8%. Bed Bath & Beyond fell 6.3%.

SVB Financial Group — Shares of the financial services company and parent of Silicon Valley Bank fell more than 3% after it announced it would acquire tech equity research firm MoffettNathanson to expand its investment banking capabilities.

Bristol-Myers Squibb — The biopharmaceutical company saw shares rise 3.8% after it announced a dividend increaseAn increase of 10.2% on the quarterly rate last year and an additional $15 Billion share repurchase authority

Halliburton, Exxon Mobil — Shares of the energy companies fell after Iraq’s energy minister said they’re in talks over the potential sale of Exxon’s stake in the West Qurna-1 oil field in southern Iraq, Bloomberg reported Monday. Halliburton shares dropped 5.3% while Exxon shares suffered a 1.8% decline.

Coca-Cola — Shares of the beverage company gained more than 2% after JPMorgan upgraded the stock to an overweight rating. JPMorgan expects that top-line momentum will continue into 2022 due to the continuing economic reopening after the pandemic. The company also noted that the current stock valuation was compelling on both a historical and relative basis.

Rivian — EV maker Rivian’s share got a 1% boost after MotorTrend names its R1T model the publication’s 2022 truck of the yearIt was praised by the R1T on Monday as “the most extraordinary pickup truck that we have ever driven”. The R1T has the first mass-produced electric truck in the U.S., and the recognition is highly sought by automakers globally every year. FordThe decline was 4.5% General Motors fell 5%.

Dollar Tree — Shares of the discount retailer fell 1% after activist investor Mantle Ridge announced efforts to try to replace the Dollar Tree board, which the company called “unwarrantedly aggressive.” Dollar Tree stated that it offered to settle with Mantle Ridge (5.7%) of the company’s shares.

Travel stocks — Stocks related to travelAnd the economic reopening were lower Monday amid continued fear and anxiety around the omicron variant of Covid-19. United and American AirlinesMore than 5% fell. CarnivalLose 5.4% Royal Caribbean CruisesDropped by 4.8% Hotel chains MarriottAnd HiltonThey were respectively 4% and 2.5% less.

 — CNBC’s Pippa Stevens contributed reporting