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BSX

Boston Scientific Corporation

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Boston Scientific Corporation operates in the Surgical & Medical Instruments & Apparatus industry.

$42.60−1.46%

Oct 2 close · 1D EOD · Databento

HealthcareSurgical & Medical Instruments & ApparatusLarge-capSEC EDGAR FY 2025-12-31

What happened

Daily closes · dots are Wire stories

After a story on BSX, the first close moved a median −3.11%. Up 1 of 3; over the three sessions after that, a median −3.33%.

DateEventSourceNext close

Sep 13Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.Yahoo FinanceYahoo Finance+4.82%
Sep 8Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.Yahoo FinanceYahoo Finance−5.90%
Aug 26Boston Scientific reports cybersecurity incident affecting operations, shares fallInvesting.comInvesting.com−3.11%
Jul 29Earnings release, before the open · 8-KSEC EDGARSEC EDGAR ↗−0.04%

Next close = the first close after the event against the close before it. Prior-session closes only; not a call, not advice.

What happened · big days

22 big days in a year, and what we hold on each

A big day is a close more than 3.41% from the one before, three times BSX’s median day (1.14%). On 8 of the 22, its peer group moved the same way at least half as far. We show what we hold. We never name a cause.

every other trading daya big day, numbered in the list below±3.41%Hover a bar for its day. Click a big day to open it.

Shaded: since our stories began, Jun 10. Tap a bar for its day.

#DayBSXWhat we hold that dayGroup (median of 4) · each

1 Oct 22, 2025+3.95%
Resultsgroup +0.8%, did not move with it
1Oct 22, 2025+3.95%
ResultsFirst close after the Oct 22 results filing
+0.8% did not move with itSYK +2.3 · DXCM +1.4 · MMM +0.3 · BDX −0.5
2 Dec 8, 2025−3.77%
Before our storiesgroup −2.2%, moved with BSX
2Dec 8, 2025−3.77%
Before our stories
−2.2% moved with BSXSYK −2.9 · BDX −2.3 · MMM −2.1 · DXCM +0.2
3 Jan 15, 2026−3.96%
Before our storiesgroup +0.6%, did not move with it
3Jan 15, 2026−3.96%
Before our stories
+0.6% did not move with itDXCM −0.7 · BDX +0.5 · MMM +0.7 · SYK +0.9
4 Jan 20, 2026+3.55%
Before our storiesgroup −1.5%, did not move with it
4Jan 20, 2026+3.55%
Before our stories
−1.5% did not move with itDXCM +1.7 · SYK −1.1 · BDX −1.8 · MMM −7.0
5 Feb 4, 2026−17.59%
Resultsgroup +0.3%, did not move with it
5Feb 4, 2026−17.59%
ResultsFirst close after the Feb 4 results filing
+0.3% did not move with itDXCM −1.1 · SYK −0.0 · BDX +0.7 · MMM +5.2
6 Mar 30, 2026−9.02%
Before our storiesgroup −0.4%, did not move with it
6Mar 30, 2026−9.02%
Before our stories
−0.4% did not move with itDXCM −0.6 · SYK −0.4 · MMM −0.4 · BDX +0.1
7 Apr 20, 2026−5.04%
Before our storiesgroup −0.7%, did not move with it
7Apr 20, 2026−5.04%
Before our stories
−0.7% did not move with itMMM −2.0 · SYK −1.4 · BDX +0.1 · DXCM +1.0
8 Apr 22, 2026+8.99%
Resultsgroup −0.0%, did not move with it
8Apr 22, 2026+8.99%
ResultsFirst close after the Apr 22 results filing
−0.0% did not move with itDXCM +1.3 · SYK +0.6 · BDX −0.7 · MMM −1.8
9 Apr 24, 2026−5.51%
Before our storiesgroup −1.2%, did not move with it
9Apr 24, 2026−5.51%
Before our stories
−1.2% did not move with itDXCM −1.8 · BDX −1.8 · SYK −0.7 · MMM +0.8
10 Apr 27, 2026−3.42%
Before our storiesgroup −0.2%, did not move with it
10Apr 27, 2026−3.42%
Before our stories
−0.2% did not move with itBDX −1.3 · DXCM −0.3 · MMM −0.1 · SYK +0.5
11 May 8, 2026−4.67%
Before our storiesgroup −1.5%, did not move with it
11May 8, 2026−4.67%
Before our stories
−1.5% did not move with itSYK −3.0 · BDX −2.5 · DXCM −0.5 · MMM −0.3
12 May 18, 2026+6.15%
Before our storiesgroup +3.2%, moved with BSX
12May 18, 2026+6.15%
Before our stories
+3.2% moved with BSXDXCM +5.6 · MMM +4.3 · SYK +2.1 · BDX −0.8
13 May 27, 2026−12.46%
Before our storiesgroup −1.3%, did not move with it
13May 27, 2026−12.46%
Before our stories
−1.3% did not move with itDXCM −2.4 · SYK −2.3 · BDX −0.3 · MMM +0.7
14 Jun 17, 2026−4.20%
Nothing on BSXgroup −2.5%, moved with BSX
14Jun 17, 2026−4.20%
Nothing on BSXNo BSX story, brief or results filing in our record that day
−2.5% moved with BSXSYK −3.0 · DXCM −2.6 · BDX −2.5 · MMM −1.5
15 Jul 2, 2026+4.83%
Nothing on BSXgroup +3.4%, moved with BSX
15Jul 2, 2026+4.83%
Nothing on BSXNo BSX story, brief or results filing in our record that day
+3.4% moved with BSXSYK +4.2 · DXCM +3.5 · BDX +3.4 · MMM +0.3
16 Jul 14, 2026−4.52%
Nothing on BSXgroup −2.5%, moved with BSX
16Jul 14, 2026−4.52%
Nothing on BSXNo BSX story, brief or results filing in our record that day
−2.5% moved with BSXSYK −6.2 · DXCM −2.9 · BDX −2.1 · MMM −0.7
17 Jul 16, 2026+3.67%
Nothing on BSXgroup +4.0%, moved with BSX
17Jul 16, 2026+3.67%
Nothing on BSXNo BSX story, brief or results filing in our record that day
+4.0% moved with BSXDXCM +7.2 · SYK +4.7 · BDX +3.3 · MMM +0.8
18 Aug 3, 2026+3.64%
Nothing on BSXgroup +3.7%, moved with BSX
18Aug 3, 2026+3.64%
Nothing on BSXNo BSX story, brief or results filing in our record that day
+3.7% moved with BSXSYK +4.8 · DXCM +4.6 · BDX +2.8 · MMM +0.5
19 Aug 20, 2026−5.08%
Nothing on BSXgroup −0.7%, did not move with it
19Aug 20, 2026−5.08%
Nothing on BSXNo BSX story, brief or results filing in our record that day
−0.7% did not move with itSYK −3.6 · MMM −1.4 · BDX +0.0 · DXCM +0.4
20 Sep 8, 2026−5.90%
1 storygroup −3.4%, moved with BSX
20Sep 8, 2026−5.90%
1 story “Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.” · Yahoo Finance
−3.4% moved with BSXSYK −8.8 · DXCM −3.8 · BDX −3.0 · MMM −0.6
21 Sep 10, 2026−4.14%
Nothing on BSXgroup −1.4%, did not move with it
21Sep 10, 2026−4.14%
Nothing on BSXNo BSX story, brief or results filing in our record that day
−1.4% did not move with itSYK −1.9 · BDX −1.9 · MMM −0.9 · DXCM +0.8
22 Sep 14, 2026+4.82%
1 storygroup +2.1%, did not move with it
22Sep 14, 2026+4.82%
1 story “Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.” · Yahoo Finance
+2.1% did not move with itBDX +2.9 · SYK +2.3 · DXCM +2.0 · MMM −1.8

A story on the same day is not a cause, and a group move is not proof either. Group: the median of SYK, MMM, BDX and DXCM that day, the largest companies in BSX’s SEC industry; “moved with BSX” means the same direction and at least half the size.

What’s next · results

Before the next report: what the first day after the last four did

Six trading days after each results filing (SEC 8-K, Item 2.02). BSX reports before the open, so day 1 is that day’s close. 2 of 4 times, day 6 ended on the same side as day 1.

Reported Oct 22, 2025

day 1+3.95%day 6+0.40%

Reported Feb 4, 2026

day 1−17.59%day 6−19.81%

Reported Apr 22, 2026

day 1+8.99%day 6−3.98%

Reported Jul 29, 2026

day 1−0.04%day 6+3.65%

Next report: expected late OctoberEstimated from the dates of its last four results filings. Not announced. Since the Jul 29 report: −7.51%. Four reports is a small sample.

Every report since 2022 →

Each line is BSX’s close against its close before the filing, on licensed end-of-day closes. What happened after each report, not a forecast; a move on the day is not a cause.

The numbers · FY2025, filed

SEC EDGAR

Market cap$61.7B

Revenue$20.1B+19.90%

Net income$2.9B

EPS, diluted$1.94+55.20%

Gross margin69.0%

Operating margin18.0%

Return on equity11.8%

Debt / equity0.21

All filed figures

Snapshot

SEC EDGAR · FY 2025-12-31

SectorHealthcare

Market Cap$61.7B

Enterprise Value$64.7B

Income$2.9B

Sales$20.1B

Book/sh$16.89

Cash/sh$1.48

Dividend TTM—

Payout0%

Employees—

IPO—

Quick Ratio1.08

Current Ratio1.62

Debt/Eq0.21

EPS (ttm)$1.94

EPS this Y55.2%

EPS past 3/5Y62.8%

Sales past 3/5Y16.5%

EPS Y/Y TTM55.2%

Sales Y/Y TTM19.9%

Shs Outstand1.45B

ROA6.6%

ROE11.8%

ROIC11.2%

Gross Margin69.0%

Oper. Margin18.0%

Profit Margin14.4%

Every figure here is filed with the SEC. Valuation and estimate metrics (P/E, PEG, EV/EBITDA, price targets, forward EPS) are omitted until our market-data feed is licensed for display — we’d rather show fewer numbers than blank ones. Deeper lines (cash flow, balance sheet) below.

Revenue by fiscal year

$11.9B

FY21

$12.7B

FY22

$14.2B

FY23

$16.7B

FY24

$20.1B

FY25

Operating leverage — margins

GrossOperatingNet

Financials, annual · income and cash flowSEC EDGAR · open ▸

Financials — annual

SEC EDGAR · last 5 FY · tap a row to explain it

USD	FY2021	FY2022	FY2023	FY2024	FY2025
Revenue	$11.9B	$12.7B	$14.2B	$16.7B	$20.1B
Gross Profit	$8.2B	$8.7B	$9.9B	$11.5B	$13.9B
Operating Income	$1.2B	$1.6B	$2.3B	$2.6B	$3.6B
Net Income	$1.0B	$698.0M	$1.6B	$1.8B	$2.9B
Diluted EPS	$0.69	$0.45	$1.07	$1.25	$1.94
Operating Cash Flow	$1.9B	$1.5B	$2.5B	$3.4B	$4.5B
Free Cash Flow	$1.3B	$938.0M	$1.8B	$2.6B	$3.7B

Same industry

BSX against four medical device peers, a year at 100

BSX is down 56.2% in a year. Dexcom is up 27.3%, 3M 2.0%, Becton Dickinson is down 8.7% and Stryker 25.7%. All four did more. Weekly closes, Oct 3, 2025 = 100, on a log scale, so the same percentage move is the same height on every line.

Share this chart

BSX −56.2%. Dexcom +27.3%, 3M +2.0%, Becton Dickinson −8.7%, Stryker −25.7%. Weekly closes, Oct 3, 2025 = 100, log scale.

Share this chart

End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in BSX’s SEC industry (Surgical & Medical Instruments & Apparatus) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.

Same industry

In the screener →

SYK$105.6B MMM$83.5B BDX$48.2B DXCM$32.2B RMD$31.6B MDLN$28.8B WST$25.7B SOLV$15.0B

Follow the news. Track the move.

BSX story timeline

Company updates and connected market context, with the dated price move attached.

Stories

Direct

BSX direct/Earnings

Sep 13

Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.

A cyberattack disrupted Boston Scientific’s guidance despite no reported shortfall in demand or device performance. The setup shifts attention from operating momentum to the duration, cost and disclosure risk of the incident.

Since story

-5.4%

2026-09-14 → 2026-10-02

Yahoo Finance · 22d ago

View both sides →

Sector context/Earnings

Sep 8

Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.

Boston Scientific says it is unlikely to meet earnings guidance after a cyberattack, sending BSX shares lower. The immediate setup shifts toward estimate risk and the timing of operational recovery, with the next company update more important than the initial stock reaction.

Since story

-5.3%

2026-09-08 → 2026-10-02

Yahoo Finance · 27d ago

View both sides →

Sector context/Regulation

Aug 26

Boston Scientific reports cybersecurity incident affecting operations, shares fall

Boston Scientific reported a cybersecurity incident affecting operations, sending BSX shares lower. The setup shifts attention to the duration of disruption, remediation costs and any impact on the company’s strong revenue trajectory.

Since story

-8.7%

2026-08-27 → 2026-10-02

Investing.com · 40d ago

View both sides →

Follow the news. Track the move.

BSX story timeline

Company updates and connected market context, with the dated price move attached.

Stories

Direct

BSX direct/Earnings

Sep 13

Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.

Price history unavailable

Yahoo Finance · 22d ago

View both sides →

Sector context/Earnings

Sep 8

Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.

Price history unavailable

Yahoo Finance · 27d ago

View both sides →

Sector context/Regulation

Aug 26

Boston Scientific reports cybersecurity incident affecting operations, shares fall

Price history unavailable

Investing.com · 40d ago

View both sides →

Build basket with BSX Screener

Fundamentals sourced from SEC EDGAR filings (public domain). For informational purposes only. Not investment advice.

BSX

What happened

22 big days in a year, and what we hold on each

Before the next report: what the first day after the last four did

The numbers · FY2025, filed

Snapshot

Revenue by fiscal year

Operating leverage — margins

Financials — annual

BSX against four medical device peers, a year at 100

Same industry

Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.

Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.

Boston Scientific reports cybersecurity incident affecting operations, shares fall

Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.

Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.

Boston Scientific reports cybersecurity incident affecting operations, shares fall

What happened

What’s next

22 big days in a year, and what we hold on each

Before the next report: what the first day after the last four did

BSX against four medical device peers, a year at 100

Boston Scientific (BSX) Didn’t Miss on Demand or Devices. A Cyberattack Just Broke Its Guidance.

Boston Scientific ‘Unlikely to Meet’ Earnings Guidance After Cyberattack. Stock Falls.

Boston Scientific reports cybersecurity incident affecting operations, shares fall

What’s next

The record, by topic · 90 days

What’s next