Align Technology (ALGN) — 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.
ALGN
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
49.8%
3154 green · 3114 red · 64 flat · 6332 sessions
Current streak
1 red
As of Apr 7, 2026
Max win / lose streak
10 / 11 days
Win streak return: +12.46% · Lose: 67.22%
Median / σ daily
+0.000% · 3.752%
Avg green +2.41% · avg red 2.23%
Extreme days (>3%)
23.4%
754 up · 727 down
History from Jan 31, 2001 through Apr 7, 2026 · 6332 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 |
|---|---|
| Sep 28, 2006 | +48.21% |
| Nov 15, 2002 | +42.45% |
| Oct 22, 2020 | +34.97% |
| Apr 26, 2007 | +33.41% |
| Oct 28, 2011 | +32.79% |
| Oct 1, 2001 | +31.65% |
| Nov 15, 2001 | +30.62% |
| Aug 17, 2009 | +28.33% |
| Feb 2, 2023 | +27.38% |
| Oct 18, 2013 | +26.24% |
| Apr 18, 2001 | +25.52% |
| Apr 24, 2001 | +25.26% |
| Oct 22, 2001 | +22.86% |
| Jan 30, 2007 | +21.21% |
| Jul 24, 2009 | +21.14% |
| Oct 11, 2001 | +20.94% |
| Apr 20, 2005 | +20.29% |
| Mar 24, 2020 | +20.01% |
| Apr 30, 2008 | +18.99% |
| Aug 29, 2002 | +18.86% |
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 10, 2002 | 38.30% | 34 |
| Jul 31, 2025 | 36.63% | — |
| Oct 25, 2007 | 33.55% | 1117 |
| Oct 21, 2004 | 33.20% | 499 |
| Jul 25, 2019 | 26.99% | 86 |
| Oct 26, 2023 | 24.88% | 34 |
| Nov 14, 2001 | 21.08% | 1 |
| Oct 18, 2012 | 20.42% | 135 |
| Oct 25, 2018 | 20.20% | 107 |
| Jan 31, 2001 | 20.02% | 691 |
| Oct 24, 2002 | 19.43% | 21 |
| Feb 26, 2001 | 18.63% | 59 |
| Apr 26, 2002 | 18.47% | 206 |
| Jan 10, 2002 | 18.39% | 303 |
| Nov 13, 2001 | 18.11% | 27 |
| Oct 27, 2022 | 18.10% | 46 |
| Jun 11, 2002 | 18.02% | 174 |
| Mar 16, 2020 | 17.44% | 24 |
| Oct 9, 2008 | 16.45% | 50 |
| Oct 9, 2002 | 16.25% | 8 |
Frequently asked questions
What is the daily win rate for Align Technology (ALGN)?
- Historically, Align Technology (ALGN) closed green on 49.8% of trading days (3154 green, 3114 red, 64 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Align Technology (ALGN)?
- As of 2026-04-07, Align Technology (ALGN) 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 Align Technology (ALGN)?
- We label Align Technology (ALGN) 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 Align Technology (ALGN)?
- Largest single-day gain: +48.21%. Largest single-day loss: 38.30%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Align Technology (ALGN)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 23.4% of trading days for Align Technology (ALGN) were extreme (754 up, 727 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.