Intuitive Surgical ISRG
$452.80 −$15.72 (-3.36%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $453.85 +0.23%
Open$457.00
Prev close$468.52
Day range$450.51 – $463.25
Volume2.15M
Market cap$156.96B
P/E (TTM)54.8
Dividend yield–
Average implied volatility across the listed chain right now: 45%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.
Open interest by strike
Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.
Implied volatility by strike
The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.
Calls
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $452.50 | $9.73 | $5.60/$13.70 | 1 | 0 | 41% |
| 13 Nov 2026 | $455.00 | $7.40 | $4.30/$12.40 | 7 | 22 | 41% |
| 13 Nov 2026 | $450.00 | $11.50 | $9.80/$12.00 | 38 | 27 | 41% |
| 13 Nov 2026 | $457.50 | $17.38 | $3.40/$11.30 | 0 | 2 | 41% |
| 13 Nov 2026 | $447.50 | $14.32 | $8.00/$16.60 | 2 | 6 | 41% |
| 13 Nov 2026 | $460.00 | $7.55 | $4.80/$10.30 | 3 | 29 | 47% |
| 13 Nov 2026 | $445.00 | $16.40 | $12.10/$18.20 | 1 | 20 | 47% |
| 13 Nov 2026 | $462.50 | $5.06 | $1.20/$9.40 | 4 | 0 | 41% |
| 13 Nov 2026 | $442.50 | $19.29 | $11.40/$19.90 | 1 | 1 | 42% |
| 13 Nov 2026 | $465.00 | $4.70 | $4.00/$8.90 | 8 | 28 | 50% |
| 13 Nov 2026 | $440.00 | $16.50 | $15.50/$21.70 | 1 | 133 | 49% |
| 13 Nov 2026 | $467.50 | $3.60 | $1.00/$8.60 | 3 | 47 | 46% |
| 13 Nov 2026 | $437.50 | $20.60 | $15.30/$23.60 | 1 | 0 | 44% |
| 13 Nov 2026 | $470.00 | $3.22 | $1.90/$4.30 | 12 | 26 | 40% |
| 13 Nov 2026 | $435.00 | $23.93 | $17.50/$25.60 | 3 | 100 | 45% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $452.50 | $5.49 | $5.00/$13.10 | 0 | 1 | 41% |
| 13 Nov 2026 | $455.00 | $9.33 | $6.00/$14.30 | 10 | 19 | 40% |
| 13 Nov 2026 | $450.00 | $7.81 | $3.40/$12.00 | 70 | 19 | 41% |
| 13 Nov 2026 | $457.50 | $8.45 | $7.20/$15.70 | 2 | 0 | 40% |
| 13 Nov 2026 | $447.50 | $6.57 | $2.45/$11.00 | 2 | 20 | 41% |
| 13 Nov 2026 | $460.00 | $12.49 | $9.00/$17.20 | 7 | 13 | 41% |
| 13 Nov 2026 | $445.00 | $3.37 | $1.55/$9.00 | 0 | 4 | 39% |
| 13 Nov 2026 | $462.50 | $14.10 | $10.30/$18.80 | 3 | 141 | 40% |
| 13 Nov 2026 | $442.50 | $5.33 | $1.00/$9.30 | 1 | 2 | 43% |
| 13 Nov 2026 | $465.00 | $17.35 | $13.70/$20.50 | 3 | 21 | 44% |
| 13 Nov 2026 | $440.00 | $4.80 | $0.65/$9.00 | 13 | 12 | 45% |
| 13 Nov 2026 | $467.50 | $13.95 | $15.90/$22.30 | 1 | 7 | 45% |
| 13 Nov 2026 | $437.50 | $2.50 | $1.05/$8.70 | 0 | 0 | 49% |
| 13 Nov 2026 | $470.00 | $12.80 | $16.20/$23.80 | 0 | 7 | 40% |
| 13 Nov 2026 | $435.00 | $3.00 | $0.55/$7.40 | 8 | 55 | 48% |
Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.
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