ISRG volatility Intuitive Surgical, Inc.
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.30.9%
HV20How much the stock actually moved, measured from daily closing prices over a past window (annualized). Compare with implied volatility to see what the options market priced versus what happened.31.7%
HV6049.2%
IV − HV20 spread
-0.9pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
44
Own-history percentileWhere today's IV30 sits versus its own daily history — 80 means higher than roughly 80% of recorded observations for that period.
3/60 days recorded
Cboe delayed options data · as of 00:35 UTC · How these are computed
IV term structure
At-the-money implied volatility for each listed expiration, plotted by days remaining.
| Expires | DTE | ATM IV | 25Δ skewThe IV gap between 25-delta puts and 25-delta calls for one expiration. Positive skew means downside protection is priced richer than upside exposure. | Implied move |
|---|---|---|---|---|
| Sep 04, 2026 | 2 | 38.3% | +1.6pt | ±2.4% |
| Sep 11, 2026 | 9 | 32.6% | +2.2pt | ±4.2% |
| Sep 18, 2026 | 16 | 32.2% | +1.6pt | ±5.4% |
| Sep 25, 2026 | 23 | 31.7% | +3.1pt | ±6.4% |
| Oct 02, 2026 | 30 | 30.9% | +1.4pt | ±7.1% |
| Oct 09, 2026 | 37 | 32.4% | +2.0pt | ±8.3% |
| Oct 16, 2026 | 44 | 33.9% | +2.3pt | ±9.4% |
| Nov 20, 2026 | 79 | 37.0% | +2.5pt | ±13.8% |
| Dec 18, 2026 | 107 | 36.8% | +2.6pt | ±16.0% |
| Jan 15, 2027 | 135 | 36.7% | +2.9pt | ±17.9% |
| Feb 19, 2027 | 170 | 38.5% | +4.2pt | ±21.0% |
| Mar 19, 2027 | 198 | 38.4% | +3.4pt | ±22.6% |
| Apr 16, 2027 | 226 | 37.8% | +2.4pt | ±23.7% |
| Jun 17, 2027 | 288 | 38.4% | +3.0pt | ±27.2% |
| Sep 17, 2027 | 380 | 38.5% | +2.6pt | ±31.3% |
| Jan 21, 2028 | 506 | 39.1% | +2.9pt | ±36.6% |
Volatility smile — Sep 18, 2026
Implied volatility by strike. The tilt toward puts (left side higher) is the skew: downside protection priced richer than upside.
callsputs
Implied vs realized, daily record
IV30HV20