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Biggest moves on record

Every trading day we hold, as a bar. The five biggest are marked.

  1. 1−14.6%31 Oct 2025Max
  2. 2+12.0%31 Jul 2026Low
  3. 3+7.6%13 Feb 2026Moderate
  4. 4+7.2%16 Jul 2026Low
  5. 5+6.7%20 May 2026Moderate

Every day, by size of move

265 trading days, 2025–2026. One square is one day.

  • Max20.8%
  • Very High10.4%
  • High10.4%
  • Moderate93.4%
  • Low6323.8%
  • Very Low18971.3%

Biggest moves on record

Every week we hold, as a bar. The five biggest are marked.

  1. 1−42.7%Week of22 Jul 2024High
  2. 2+26.8%Week of3 Oct 2022Moderate
  3. 3+26.3%Week of24 Oct 2022Moderate
  4. 4+19.9%Week of14 Mar 2022Low
  5. 5−17.2%Week of27 Oct 2025Low

Every week, by size of move

302 weeks, 2021–2026. One square is one week.

  • Max00.0%
  • Very High00.0%
  • High20.7%
  • Moderate62.0%
  • Low4815.9%
  • Very Low24681.5%

Biggest moves on record

Every month we hold, as a bar. The five biggest are marked.

  1. 1+86.0%Apr 2008Max
  2. 2−55.8%Nov 2008Max
  3. 3+51.8%Aug 2018Moderate
  4. 4+50.0%Oct 2022Moderate
  5. 5+47.4%Nov 2019Low

Every month, by size of move

247 months, 2006–2026. One square is one month.

  • Max52.0%
  • Very High10.4%
  • High00.0%
  • Moderate52.0%
  • Low5321.5%
  • Very Low18374.1%

Monthly performance

Over the past 22 years, DXCM rose most often in August (17 of 22) and fell most often in September (16 of 22).

How it reacted to its last results

ReportedResultOn the day
29 Oct 2026 Beat$0.73 vs $0.67 expected +3.0%
30 Jul 2026 Beat$0.70 vs $0.61 expected +12.0%
30 Apr 2026 Beat$0.56 vs $0.47 expected +3.0%
12 Feb 2026 Beat$0.68 vs $0.65 expected +7.6%

Beat or missed means profit per share came in above or below what experts expected. The price move is for the first trading day the results could move.

Compared with its neighbours

On a normal day, DXCM moves about 1.3% up or down. That is livelier than 6 in 10 shares we follow.

Industry · Health Care

LLYEli Lilly and Co.UNHUnitedHealth GroupJNJJohnson & JohnsonABBVAbbVie Inc.MRKMerck & Co.NVSNovartis AGAZNAstraZeneca plcNVONovo Nordisk A/S

and 47 more

In the news

Recent headlines about DexCom Inc., from the outlets that wrote them.

  1. 01Yahoo Finance8 hours agoDexCom (DXCM) Stock Looks Below Fair Value on Cash Flow
  2. 02TipRanks12 hours agoDexcom’s $1 Billion 2027 Buyback Plan: Discretion, Volatility, and Doubts About Shareholder Value
  3. 03Simply Wall St16 hours agoDexCom (DXCM) Stock Could Be 41% Undervalued As Guidance Rises
  4. 04MassDevice20 hours agoDexcom Q3 earnings top forecasts, as it looks ahead to type 2 coverage
  5. 05Investor's Business Daily20 hours agoDexcom Shakes Off Abbott-Tied Malaise As U.S. Wearables Market Takes Off
  6. 06Yahoo Finance1 day agoDexCom Q3 Results, Higher Revenue Guidance Point to Stronger 2027, RBC Says