Amgen (AMGN) — 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.
AMGN
Archetype
Balanced
Moderate daily swings — neither calm nor dramatic.
Win rate
48.1%
5202 green · 5096 red · 517 flat · 10815 sessions
Current streak
2 green
As of May 20, 2026
Max win / lose streak
10 / 10 days
Win streak return: +12.69% · Lose: 7.60%
Median / σ daily
+0.000% · 2.353%
Avg green +1.75% · avg red 1.59%
Extreme days (>3%)
13.9%
832 up · 675 down
History from Jun 20, 1983 through May 20, 2026 · 10815 trading days with returns.
Trailing year — daily returns (calendar)
May 23, 2025 – May 20, 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 |
|---|---|
| Apr 10, 1986 | +20.51% |
| Dec 4, 1985 | +19.78% |
| Oct 30, 1987 | +17.58% |
| Oct 28, 1987 | +16.55% |
| Jan 25, 1985 | +15.56% |
| Jul 20, 2005 | +15.11% |
| May 2, 1986 | +14.37% |
| Mar 7, 1991 | +14.11% |
| Jul 8, 2009 | +13.89% |
| Dec 21, 1998 | +13.89% |
| Apr 20, 1999 | +13.25% |
| Jul 25, 2002 | +13.07% |
| Jul 17, 2002 | +12.86% |
| Jan 22, 2001 | +12.74% |
| Apr 22, 1994 | +12.70% |
| Nov 11, 1986 | +12.65% |
| Oct 21, 1987 | +12.50% |
| Oct 29, 1987 | +12.34% |
| Oct 18, 1985 | +12.33% |
| Jul 28, 2008 | +12.17% |
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 |
|---|---|---|
| Feb 25, 1993 | 19.95% | 174 |
| Oct 26, 1987 | 18.75% | 2 |
| Oct 19, 1987 | 18.26% | 10 |
| Jul 1, 1987 | 16.99% | 398 |
| Oct 20, 1987 | 14.90% | 8 |
| Sep 16, 1983 | 13.88% | 527 |
| Oct 27, 2000 | 13.40% | 26 |
| Oct 16, 1987 | 12.21% | 54 |
| Jun 20, 1983 | 12.12% | 696 |
| Aug 12, 1997 | 12.11% | 146 |
| Jun 27, 1983 | 11.87% | 676 |
| Sep 8, 1986 | 11.54% | 34 |
| Aug 22, 1983 | 11.11% | 9 |
| Apr 14, 1987 | 10.46% | 2 |
| Nov 3, 1987 | 10.43% | 30 |
| Apr 30, 1986 | 10.33% | 2 |
| Jul 7, 1987 | 10.32% | 23 |
| Mar 14, 2000 | 9.91% | 1 |
| Feb 5, 1993 | 9.90% | 483 |
| Mar 27, 1989 | 9.60% | 48 |
Frequently asked questions
What is the daily win rate for Amgen (AMGN)?
Historically, Amgen (AMGN) closed green on 48.1% of trading days (5202 green, 5096 red, 517 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Amgen (AMGN)?
As of 2026-05-20, Amgen (AMGN) is on a 2-day winning streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for Amgen (AMGN)?
We label Amgen (AMGN) as "balanced" based on the sample standard deviation of daily returns: Moderate daily swings — neither calm nor dramatic.
What were the best and worst single trading days for Amgen (AMGN)?
Largest single-day gain: +20.51%. Largest single-day loss: 19.95%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Amgen (AMGN)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 13.9% of trading days for Amgen (AMGN) were extreme (832 up, 675 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.
Explore more
AMGN Overview
Company profile, financial tools, and key metrics
AMGN Revenue Counter
Earns $1,181 every second. See per minute, hour, and day.
AMGN Earnings Counter
Earns $247.34 per second net profit. See per minute, hour, and day.
AMGN Economic Scale
Exceeds Honduras's GDP. Compare with world economies.
AMGN What If Invested
What if you had invested $1,000? See historical returns from any date.
AMGN How It Makes Money
Discover visual breakdown of $37.24B in revenue — where it comes from and where it goes.
AMGN Stock Seasonality
Best and worst months to invest. Historical monthly returns heatmap.
AMGN Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
AMGN Buybacks
Recent repurchase activity. Shareholder yield & SBC comparison.
AMGN Stock Split History
5 splits on record. Dates, ratios, and cumulative multiple.
AMGN Dividend Profile
Yield: 2.96%. Safety: 8/8. See full history.
AMGN Dividend Calculator
How much dividend income would $1,000 have earned? Calculate from any date.
AMGN Dividend Forecast
Project future income with DRIP, growth assumptions, and optional monthly contributions.
AMGN Dividend Capture
Historical pre-ex touch stats, gap distribution, after-tax calculator, and a backtest simulator (limit-order vs MOC exit).
AMGN Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.