Boston Scientific (BSX) — 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
Balanced
Moderate daily swings — neither calm nor dramatic.
Win rate
48.8%
4176 green · 4100 red · 284 flat · 8560 sessions
Current streak
1 red
As of May 20, 2026
Max win / lose streak
9 / 10 days
Win streak return: +12.13% · Lose: 10.27%
Median / σ daily
+0.000% · 2.378%
Avg green +1.69% · avg red 1.60%
Extreme days (>3%)
13.4%
615 up · 530 down
History from May 20, 1992 through May 20, 2026 · 8560 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 |
|---|---|
| Oct 13, 2008 | +26.13% |
| Oct 13, 1993 | +16.35% |
| Jul 24, 2002 | +16.31% |
| Mar 16, 2000 | +16.14% |
| Dec 5, 2008 | +15.83% |
| Apr 30, 1997 | +13.45% |
| Mar 18, 1999 | +13.24% |
| Apr 21, 1999 | +13.21% |
| Jul 25, 2013 | +12.70% |
| Feb 18, 2015 | +12.40% |
| Nov 21, 2008 | +12.04% |
| Sep 18, 2008 | +11.85% |
| Feb 28, 1996 | +11.76% |
| Mar 9, 2000 | +11.51% |
| Nov 13, 2008 | +11.41% |
| Sep 24, 2001 | +11.35% |
| Apr 27, 2016 | +11.17% |
| Jan 4, 2001 | +11.11% |
| May 26, 2004 | +11.05% |
| Dec 3, 2008 | +10.91% |
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 19, 2000 | 26.71% | 335 |
| Apr 11, 1997 | 23.79% | 47 |
| Sep 15, 1999 | 23.56% | 765 |
| Aug 6, 1999 | 17.81% | 798 |
| Feb 4, 2026 | 17.59% | — |
| Sep 5, 1997 | 17.45% | 208 |
| Nov 20, 2008 | 16.34% | 8 |
| Sep 15, 1993 | 15.87% | 38 |
| Oct 20, 2009 | 15.65% | 946 |
| Apr 1, 1993 | 15.50% | 34 |
| Mar 16, 2020 | 14.79% | 11 |
| Apr 6, 2001 | 14.72% | 40 |
| Oct 10, 2008 | 12.87% | 1 |
| Mar 15, 2010 | 12.60% | 195 |
| Nov 3, 1998 | 11.26% | 14 |
| Oct 22, 1997 | 11.21% | 75 |
| Feb 22, 1993 | 11.11% | 2 |
| Nov 12, 2008 | 11.04% | 34 |
| Jul 22, 2008 | 11.01% | 1384 |
| Nov 25, 1997 | 10.96% | 41 |
Frequently asked questions
What is the daily win rate for Boston Scientific (BSX)?
Historically, Boston Scientific (BSX) closed green on 48.8% of trading days (4176 green, 4100 red, 284 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Boston Scientific (BSX)?
As of 2026-05-20, Boston Scientific (BSX) 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 Boston Scientific (BSX)?
We label Boston Scientific (BSX) 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 Boston Scientific (BSX)?
Largest single-day gain: +26.13%. Largest single-day loss: 26.71%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Boston Scientific (BSX)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 13.4% of trading days for Boston Scientific (BSX) were extreme (615 up, 530 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
BSX Overview
Company profile, financial tools, and key metrics
BSX Revenue Counter
Earns $653.70 every second. See per minute, hour, and day.
BSX Earnings Counter
Earns $112.66 per second net profit. See per minute, hour, and day.
BSX Economic Scale
Exceeds Niger's GDP. Compare with world economies.
BSX What If Invested
What if you had invested $1,000? See historical returns from any date.
BSX How It Makes Money
Discover visual breakdown of $20.61B in revenue — where it comes from and where it goes.
BSX Stock Seasonality
Best and worst months to invest. Historical monthly returns heatmap.
BSX Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
BSX Buybacks
Recent repurchase activity. Shareholder yield & SBC comparison.
BSX Stock Split History
2 splits on record. Dates, ratios, and cumulative multiple.
BSX Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.