DexCom (DXCM) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
DXCM
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
49.5%
2611 green · 2494 red · 172 flat · 5277 sessions
Current streak
1 red
As of Apr 7, 2026
Max win / lose streak
11 / 9 days
Win streak return: +11.75% · Lose: 11.90%
Median / σ daily
+0.000% · 3.442%
Avg green +2.35% · avg red 2.21%
Extreme days (>3%)
22.6%
627 up · 565 down
History from Apr 15, 2005 through Apr 7, 2026 · 5277 trading days with returns.
Trailing year — daily returns (calendar)
Apr 8, 2025 – Apr 7, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Dec 4, 2008 | +50.25% |
| Aug 2, 2018 | +30.64% |
| Nov 7, 2019 | +27.14% |
| Nov 24, 2008 | +26.62% |
| Jan 13, 2017 | +25.92% |
| Oct 13, 2008 | +25.00% |
| Nov 7, 2013 | +22.03% |
| Apr 18, 2008 | +21.38% |
| Aug 8, 2013 | +21.27% |
| Oct 15, 2015 | +19.42% |
| Oct 28, 2022 | +19.38% |
| Jan 5, 2009 | +18.84% |
| Apr 7, 2008 | +16.22% |
| May 2, 2025 | +16.17% |
| Aug 18, 2006 | +16.01% |
| Apr 9, 2007 | +15.71% |
| May 10, 2005 | +14.92% |
| Oct 31, 2007 | +14.78% |
| Aug 8, 2007 | +14.43% |
| Nov 7, 2014 | +14.07% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Jul 26, 2024 | 40.66% | — |
| Sep 28, 2017 | 32.66% | 119 |
| Nov 11, 2008 | 23.18% | 18 |
| Nov 5, 2010 | 22.13% | 36 |
| Nov 12, 2008 | 21.82% | 15 |
| Nov 20, 2008 | 21.02% | 2 |
| Nov 3, 2011 | 19.59% | 46 |
| Nov 2, 2016 | 19.25% | 49 |
| Aug 4, 2011 | 18.21% | 273 |
| Mar 12, 2008 | 17.61% | 19 |
| Oct 9, 2008 | 17.36% | 2 |
| Jun 13, 2006 | 17.10% | 1697 |
| Mar 16, 2020 | 17.10% | 8 |
| Mar 5, 2009 | 16.37% | 5 |
| Dec 18, 2008 | 15.56% | 10 |
| Oct 31, 2025 | 14.63% | 28 |
| Mar 2, 2007 | 14.57% | 25 |
| Mar 10, 2008 | 13.71% | 28 |
| Feb 8, 2016 | 13.48% | 8 |
| Jan 20, 2009 | 13.43% | 13 |
Frequently asked questions
What is the daily win rate for DexCom (DXCM)?
- Historically, DexCom (DXCM) closed green on 49.5% of trading days (2611 green, 2494 red, 172 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for DexCom (DXCM)?
- As of 2026-04-07, DexCom (DXCM) is on a 1-day losing streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for DexCom (DXCM)?
- We label DexCom (DXCM) as "explosive" based on the sample standard deviation of daily returns: High daily volatility — frequent large price swings.
What were the best and worst single trading days for DexCom (DXCM)?
- Largest single-day gain: +50.25%. Largest single-day loss: 40.66%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for DexCom (DXCM)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 22.6% of trading days for DexCom (DXCM) were extreme (627 up, 565 down).
Data & methodology
How are green, red, and flat days defined?
- We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
- We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
- On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
- Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.