Alnylam Pharmaceuticals (ALNY) — 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
Explosive
High daily volatility — frequent large price swings.
Win rate
50.6%
2779 green · 2667 red · 50 flat · 5496 sessions
Current streak
1 red
As of Apr 7, 2026
Max win / lose streak
11 / 9 days
Win streak return: +18.90% · Lose: 7.45%
Median / σ daily
+0.059% · 3.612%
Avg green +2.44% · avg red 2.27%
Extreme days (>3%)
26.5%
761 up · 697 down
History from Jun 2, 2004 through Apr 7, 2026 · 5496 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 16, 2012 | +53.04% |
| Jul 9, 2007 | +52.21% |
| Sep 20, 2017 | +51.71% |
| Aug 3, 2022 | +49.33% |
| Sep 7, 2005 | +43.83% |
| Jan 13, 2014 | +40.89% |
| Jun 24, 2024 | +34.52% |
| Oct 13, 2014 | +18.98% |
| Oct 31, 2006 | +18.80% |
| Nov 22, 2004 | +17.35% |
| May 15, 2017 | +16.26% |
| Aug 27, 2018 | +16.23% |
| Jul 11, 2013 | +15.77% |
| Nov 9, 2016 | +15.73% |
| Jul 31, 2025 | +15.43% |
| Feb 18, 2011 | +15.20% |
| Jul 12, 2013 | +14.96% |
| Feb 15, 2012 | +14.30% |
| Nov 24, 2004 | +13.75% |
| Aug 19, 2004 | +13.69% |
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 |
|---|---|---|
| Oct 6, 2016 | 48.49% | 152 |
| Dec 27, 2021 | 17.10% | 151 |
| Sep 7, 2017 | 15.68% | 9 |
| Oct 28, 2021 | 15.18% | 35 |
| Apr 2, 2018 | 15.05% | 105 |
| Oct 27, 2008 | 12.85% | 3 |
| Nov 3, 2016 | 12.63% | 2 |
| Mar 2, 2009 | 12.26% | 14 |
| Apr 10, 2014 | 12.11% | 40 |
| Nov 7, 2018 | 11.86% | 42 |
| May 3, 2016 | 11.60% | 17 |
| Aug 7, 2015 | 11.41% | 542 |
| Feb 14, 2012 | 11.38% | 1 |
| Aug 11, 2004 | 11.35% | 10 |
| Nov 14, 2008 | 11.16% | 1128 |
| Jan 11, 2005 | 11.14% | 165 |
| Dec 2, 2004 | 11.11% | 24 |
| Jan 20, 2009 | 11.02% | 14 |
| Nov 12, 2008 | 11.00% | 1130 |
| Aug 10, 2011 | 10.91% | 3 |
Frequently asked questions
What is the daily win rate for Alnylam Pharmaceuticals (ALNY)?
- Historically, Alnylam Pharmaceuticals (ALNY) closed green on 50.6% of trading days (2779 green, 2667 red, 50 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Alnylam Pharmaceuticals (ALNY)?
- As of 2026-04-07, Alnylam Pharmaceuticals (ALNY) 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 Alnylam Pharmaceuticals (ALNY)?
- We label Alnylam Pharmaceuticals (ALNY) 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 Alnylam Pharmaceuticals (ALNY)?
- Largest single-day gain: +53.04%. Largest single-day loss: 48.49%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Alnylam Pharmaceuticals (ALNY)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 26.5% of trading days for Alnylam Pharmaceuticals (ALNY) were extreme (761 up, 697 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.