Shares of several COVID-19 vaccine makers were sinking on Tuesday morning. Dynavax Technologies(NASDAQ:DVAX) stock was down 6.3% as of 11:26 a.m. EDT, while shares of Novavax(NASDAQ:NVAX) and Vaxart(NASDAQ:VXRT) were falling 7.8% and 10.6%, respectively.

None of these three companies announced any news today. The declines for the biotech stocks appear to merely be run-of-the-mill volatility on a day when the overall stock market was down.

The best thing that investors can do when stocks fall for no apparent reason is... nothing. Instead, continue to focus on the prospects for the underlying businesses behind those stocks.

Dynavax, for example, already has a product on the market. Sales of its Heplisav-B hepatitis B vaccine were negatively impacted by the COVID-19 pandemic. However, Dynavax plans to launch the vaccine in Europe this year. It also has a strong growth driver on its hands with the CpG 1019 adjuvant. 

More in category

Schumer says prepared to keep lawmakers in Washington for as long as it takes to complete votes on infrastructure and budget blueprint
July 31, 2021MarketWatch
Schumer says prepared to keep lawmakers in Washington for as long as it takes to complete votes on infrastructure and budget blueprint
Opinion: As Congress clashes over borrowing and debt, gold is likely to beat stocks
July 30, 2021MarketWatch
Opinion: As Congress clashes over borrowing and debt, gold is likely to beat stocks
Tenants prepare for unknown as U.S. federal eviction moratorium ends Saturday
July 31, 2021MarketWatch
Tenants prepare for unknown as U.S. federal eviction moratorium ends Saturday
Opinion: Investors are accused of being obsessed with short-term results. The popularity of growth stocks proves otherwise
July 30, 2021MarketWatch
Opinion: Investors are accused of being obsessed with short-term results. The popularity of growth stocks proves otherwise
Opinion: Here’s how the 6 Big Tech stocks now rank, from worst to first
July 30, 2021MarketWatch
Opinion: Here’s how the 6 Big Tech stocks now rank, from worst to first
U.S. stocks fall Friday, booking weekly losses, but S&P 500 index up for 6 straight months
July 30, 2021MarketWatch
U.S. stocks fall Friday, booking weekly losses, but S&P 500 index up for 6 straight months
Opinion: Microsoft’s quarterly results show that growth is nowhere near slowing down
July 28, 2021MarketWatch
Opinion: Microsoft’s quarterly results show that growth is nowhere near slowing down
Opinion: You can beat stock market indexes — this fund manager has, and this is how she and her team did it
July 28, 2021MarketWatch
Opinion: You can beat stock market indexes — this fund manager has, and this is how she and her team did it
Opinion: Here’s your to-do list before the stock market’s next dive
July 27, 2021MarketWatch
Opinion: Here’s your to-do list before the stock market’s next dive
Eilish addresses internet trolls: 'Would never say that to you in real life'
July 31, 2021FOX Business
Eilish addresses internet trolls: 'Would never say that to you in real life'
Got $10,000? 3 Renewable-Energy Stocks to Buy For the Long Term
July 31, 2021The Motley Fool
Got $10,000? 3 Renewable-Energy Stocks to Buy For the Long Term
Sales tax-free holidays: What’s on sale in your state?
July 31, 2021FOX Business
Sales tax-free holidays: What’s on sale in your state?
This tool helps measure how climate friendly your 401(k) is — and dings Amazon.com for its fund offerings
July 27, 2021MarketWatch
This tool helps measure how climate friendly your 401(k) is — and dings Amazon.com for its fund offerings
Billions in rental assistance slow to reach tenants, many at risk of eviction
July 30, 2021FOX Business
Billions in rental assistance slow to reach tenants, many at risk of eviction
Should You Really Be Investing in the Stock Market Right Now?
July 31, 2021The Motley Fool
Should You Really Be Investing in the Stock Market Right Now?
Toys for Tots prepares for supply shortage this holiday season
July 31, 2021FOX Business
Toys for Tots prepares for supply shortage this holiday season
Nonprofits Get a New Type of Donation: Cryptocurrency
July 30, 2021The NY Times
Nonprofits Get a New Type of Donation: Cryptocurrency
Pinterest stock in danger of sharpest drop on record as pandemic recovery weighs on user growth
July 30, 2021MarketWatch
Pinterest stock in danger of sharpest drop on record as pandemic recovery weighs on user growth
Adding $500 to These 3 Stocks Would Be a Brilliant Move
July 31, 2021The Motley Fool
Adding $500 to These 3 Stocks Would Be a Brilliant Move
My Top High-Yield Dividend Stock to Buy Now
July 31, 2021The Motley Fool
My Top High-Yield Dividend Stock to Buy Now
8 home decor upgrades that are easy and affordable
July 29, 2021Fast Company
8 home decor upgrades that are easy and affordable