Glucose monitoring device maker DexCom stock rallies more than 50% in October to pace the S&P 500

DexCom eased today but stayed on track to be the S&P 500's best October performer with a month-to-date gain of 50.6%. The rally comes as maker of glucose monitoring systems reported last week third-quarter results that beat expectations and got a boost from the Centers for Medicare and Medicaid Services' issuing a proposal that would expand the coverage of glucose monitoring devices. 

https://www.morningstar.com/news/marketwatch/20221031242/glucose-monitoring-device-maker-dexcom-stock-rallies-more-than-50-in-october-to-pace-the-sp-500