Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of biopharmaceuticals small fry Novavax (Nasdaq: NVAX) jumped more than 10% in intraday trading on heavy volume.

So What: So what? is just about right. Oftentimes, big stock movements can be explained by company news, events, or even something positive or negative happening with a competitor. Sometimes, though -- as appears to be the case here -- momentum can just build up and push the stock in one direction or another without any clear driver.

Now What: Like fellow biopharma players BioCryst Pharmaceuticals (Nasdaq: BCRX) and Sinovac Biotech (NYSE: SVA), Novavax will live or die on its ability to develop effective products that are approved for the commercial market. Quick pops in the stock like this may put a flutter in bulls' hearts, but the only reason the move itself might be notable is if a current investor sees it as a good time to make an exit. Otherwise, there's little reason to pay it much mind.

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