Shares of DexCom (NASDAQ: DXCM) were jumping 5.7% higher as of 3:02 p.m. EDT on Wednesday. The maker of continuous glucose monitoring (CGM) systems didn't announce any news. Instead, DexCom's gains appear to be the result of investors' general optimism about the economy as the overall stock market rose on Wednesday.
Most stocks tend to move higher when the major market indexes rise. The strongest stocks, though, usually generate gains that are well above the indexes'. And DexCom qualifies as one of the strongest on the market, with the healthcare stock more than doubling so far in 2020.
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Source Fool.com