Quest Diagnostics (DGX) — 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.
Archetype
Steady
Low daily volatility — small, predictable daily moves.
Win rate
50.6%
3732 green · 3466 red · 172 flat · 7370 sessions
Current streak
1 red
As of Apr 7, 2026
Max win / lose streak
11 / 9 days
Win streak return: +6.87% · Lose: 23.44%
Median / σ daily
+0.027% · 1.861%
Avg green +1.26% · avg red 1.19%
Extreme days (>3%)
7.4%
305 up · 242 down
History from Dec 18, 1996 through Apr 7, 2026 · 7370 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 |
|---|---|
| Jul 11, 2000 | +14.76% |
| Feb 9, 1999 | +13.79% |
| Oct 9, 2002 | +13.17% |
| Apr 17, 2000 | +12.80% |
| Mar 26, 2020 | +12.58% |
| Jan 26, 2000 | +12.20% |
| Dec 22, 2000 | +12.02% |
| Jul 24, 2002 | +11.93% |
| May 24, 2000 | +11.88% |
| Apr 18, 2000 | +11.46% |
| Oct 25, 2011 | +10.83% |
| Oct 28, 1999 | +10.60% |
| Nov 8, 2000 | +10.09% |
| Oct 16, 2000 | +9.96% |
| Jan 26, 2009 | +9.84% |
| Feb 6, 2001 | +9.43% |
| Nov 30, 2000 | +9.35% |
| Apr 20, 2006 | +9.32% |
| Apr 23, 2019 | +9.29% |
| Jan 14, 1997 | +9.28% |
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 |
|---|---|---|
| Jan 4, 2001 | 18.37% | 116 |
| Oct 3, 2006 | 17.90% | 804 |
| Oct 20, 2000 | 17.44% | 44 |
| Sep 18, 2000 | 14.58% | 7 |
| Jul 25, 2002 | 13.75% | 44 |
| Oct 27, 2000 | 12.00% | 7 |
| Oct 23, 2000 | 11.83% | 12 |
| Jul 2, 1999 | 11.70% | 32 |
| Oct 4, 2002 | 11.10% | 5 |
| Mar 16, 2020 | 10.73% | 26 |
| Mar 18, 2020 | 10.15% | 6 |
| Nov 13, 2000 | 9.46% | 13 |
| Mar 12, 2020 | 9.35% | 28 |
| Jan 24, 2003 | 9.33% | 46 |
| Oct 15, 2008 | 9.31% | 12 |
| Nov 29, 2018 | 9.28% | 101 |
| Oct 9, 2008 | 9.10% | 16 |
| Nov 20, 2000 | 8.78% | 4 |
| Sep 21, 2001 | 8.74% | 2 |
| Mar 12, 2001 | 8.41% | 21 |
Frequently asked questions
What is the daily win rate for Quest Diagnostics (DGX)?
- Historically, Quest Diagnostics (DGX) closed green on 50.6% of trading days (3732 green, 3466 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 Quest Diagnostics (DGX)?
- As of 2026-04-07, Quest Diagnostics (DGX) 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 Quest Diagnostics (DGX)?
- We label Quest Diagnostics (DGX) as "steady" based on the sample standard deviation of daily returns: Low daily volatility — small, predictable daily moves.
What were the best and worst single trading days for Quest Diagnostics (DGX)?
- Largest single-day gain: +14.76%. Largest single-day loss: 18.37%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Quest Diagnostics (DGX)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 7.4% of trading days for Quest Diagnostics (DGX) were extreme (305 up, 242 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.