S&P 500 comparison · Health Care

Boston Scientific vs Intuitive Surgical

Prices at close . Model readings .

Boston Scientific

$42.43−5.84%
Month: positive

Intuitive Surgical

$444.18−0.38%
Month: negativeLong run: neutral
Price change

Price change, with the S&P 500 as a benchmark

Percent change in each close since the start of the chosen range, for both companies and the S&P 500 (SPY). Daily closes over the last year, weekly before that and monthly before five years.

In short

How the two compare

On the latest closes (28 Oct 2026), Intuitive Surgical is the larger company by market value ($156.17B against $62.58B). Over the past year Boston Scientific returned −58.6% and Intuitive Surgical −19.4%, while the S&P 500 returned +12.7%. The latest filed P/E is 21.0 for Boston Scientific and 53.5 for Intuitive Surgical, and the operating margin 21.7% against 19.4%. Over the next 21 sessions the model expects +0.53% for Boston Scientific, with a 57% chance of a rise, and −0.41% for Intuitive Surgical, with a 30% chance. Boston Scientific has no published fair value today. Intuitive Surgical's long-run fair value is $414.30, a gap of −6.7% to its price; the long-run model view is neutral.

Model view

What the model expects

Expected returns and the chance of a rise from our forecasting models, and the long-run fair value against the price. Readings, not advice.

Model readings:
Expected returnnext 21 sessions
BSX+0.53%
ISRG−0.41%
Chance of a risenext 21 sessions
BSX57%
ISRG30%
Expected returnnext 63 sessions
BSX+2.91%
ISRG+1.28%
Range of outcomes63 sessions, 80% band
BSX−23.6% to +29.5%
ISRG−21.4% to +24%
Chance of a risenext 63 sessionsMembers only · see plans
Long-run fair valueintrinsic value model
BSX—The model's fair value falls outside its own interval or at the gap clamp, so it is not a measurement.
ISRG$414.3028 Oct 2026
Gap to pricefair value against the close
BSX—The model's fair value falls outside its own interval or at the gap clamp, so it is not a measurement.
ISRG−6.7%
Past readings that matchedsign of the 21-session outcome
BSX42%of 269
ISRG51.7%of 269
Price performance

How the prices moved

Price change over each period, with the S&P 500 (SPY) for comparison.

Closes to
1 monthS&P 500: +1.1%
BSX−3.3%
ISRG+7.8%
6 monthsS&P 500: +8.5%
BSX−25.8%
ISRG−2.1%
Year to dateS&P 500: +13.3%
BSX−55.5%
ISRG−21.6%
1 yearS&P 500: +12.7%
BSX−58.6%
ISRG−19.4%
5 yearsS&P 500: +70.7%
BSX−4.6%
ISRG+30.7%
1 year against the S&P 500percentage points
BSX−71.3 pts
ISRG−32.1 pts
Position in the 52-week range0% low, 100% high
BSX4%close $42.43 in $39.57 to $105.65
ISRG42%close $444.18 in $328.57 to $603.88
Against the 200-day average
BSX−25.6%
ISRG+2.3%
Valuation

What the market pays

Size and the multiples from the latest filed quarter. A P/E on losses reads n/m.

Filings: quarter to (BSX), (ISRG)
Market value
BSX$62.58B28 Oct 2026
ISRG$156.17B28 Oct 2026
Enterprise valueat the last filing
BSX$75.03B30 Jun 2026
ISRG—Not in the latest filing data.
P/Elatest filed
BSX21.0
ISRG53.5
Price to book
BSX2.50
ISRG8.87
EV / EBITDA
BSX13.93
ISRG41.36
Free cash flow yield
BSX5.76%
ISRG2.52%
Dividend yield
BSX0%
ISRG0.01%
Questions

Boston Scientific or Intuitive Surgical: common questions

Which is larger by market value, Boston Scientific or Intuitive Surgical?

Intuitive Surgical, at $156.17B against $62.58B for Boston Scientific, on the latest closes (28 Oct 2026).

Which has the higher P/E ratio, Boston Scientific or Intuitive Surgical?

Intuitive Surgical has the higher latest filed P/E, 53.5; Boston Scientific's is 21.0. Filings: quarter to 30 Jun 2026 and 30 Sep 2026.

How did Boston Scientific and Intuitive Surgical move over the past year against the S&P 500?

Over the past year Boston Scientific returned −58.6% and Intuitive Surgical −19.4%, while the S&P 500 returned +12.7%. Prices at close 28 Oct 2026.

What does the model expect for Boston Scientific and Intuitive Surgical over the next month?

+0.53% for Boston Scientific with a 57% chance of a rise, and −0.41% for Intuitive Surgical with a 30% chance, over the next 21 sessions. Model readings 28 Oct 2026. These are model readings, not advice.

How do the operating margins of Boston Scientific and Intuitive Surgical compare?

The operating margin is 21.7% for Boston Scientific and 19.4% for Intuitive Surgical, and the gross margin 70.7% against 68.4%. Filings: quarter to 30 Jun 2026 and 30 Sep 2026.

Do Boston Scientific and Intuitive Surgical shares move together?

Over the past year the correlation of their daily returns was 0.38 (loosely together); 1 means they always move together, 0 unrelated, −1 opposite. Prices at close 28 Oct 2026.

In the consoleCompare up to four companies with every model readingMembers see the 63-session chance of a rise and all four horizons, side by side in Research › Compare.
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The two company pagesBoston Scientific (BSX) forecast and analysisIntuitive Surgical (ISRG) forecast and analysis
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BrowseAll Health Care companiesAll comparisonsHow the model readings are made

Model readings are research estimates, not investment advice. Prices: daily closes. Fundamentals: the latest SEC filings. Short interest: FINRA, settlement 30 Sep 2026. A dash means the figure is not in our data; it is never shown as zero. The model view follows a published rule: next month by the sign of the expected return, the long run positive at a fair value 10% or more above the price and negative at 10% or more below it.