DexCom is trading 21.92% down at $71.43 in after-hours trading after closing at $91.48 on August 13, 2026; no new earnings release, regulatory action, analyst change, or other confirmed company-specific catalyst was found.
- Its latest major reported event was the July 30 second-quarter release, which showed an earnings beat and raised 2026 guidance.
- Broader markets finished higher on August 13, so the move does not appear driven by broad market weakness.
- Recheck delayed filings, company statements, or corrected after-hours pricing.