In addition, earlier this year Wells Fargo raised DXCM stock to Overweight from Equal Weight (the equivalents of Buy and Hold, respectively), citing the upcoming G7 launch as a major growth driver. SEE MORE Warren Buffett's Inflation Plan: Buy, Buy, Buy Getty Images Dexcom Market value: $30.9 billion Stock split: 4-for-1 Diabetes care company Dexcom (DXCM, $314.94) makes glucose monitoring systems that are sold worldwide. And the International Diabetes Federation projects the number of diabetic adults will rise from 537 million last year to 783 million by 2045, creating a huge growing market for the DXCM's products.