DexCom closed at $88.48 on Nov 4, up 6.64%, 4.2% below its 52-week closing high. Volume of 5.3M shares was 1.08× its 20-day average (close to normal).
Split-adjusted performance: +6.1% over one month, +46.6% over six months, +46.4% over one year.
In the quarter ended Sep 30, 2026, revenue was $1.34B, up 11.2% from a year earlier, with a net margin of 20.5%.
Short interest was 15.7M shares at the Oct 15 settlement, up 11.9% from the prior report (4.2% of float, 4.8 days to cover).