REGN volatility Regeneron Pharmaceuticals, Inc.
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.37.8%
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.29.5%
HV6030.5%
IV − HV20 spread
+8.3pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
46
Own-history percentileWhere today's IV30 sits versus its own daily history — 80 means higher than roughly 80% of recorded observations for that period.
28/60 days recorded
Cboe delayed options data · as of 12:40 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 |
|---|---|---|---|---|
| Oct 23, 2026 | 4 | 32.2% | -0.2pt | ±3.6% |
| Oct 30, 2026 | 11 | 43.7% | +1.6pt | ±6.8% |
| Nov 06, 2026 | 18 | 39.4% | +2.3pt | ±7.5% |
| Nov 13, 2026 | 25 | 38.0% | +2.5pt | ±8.4% |
| Nov 20, 2026 | 32 | 37.8% | +0.2pt | ±9.3% |
| Nov 27, 2026 | 39 | 36.4% | +1.0pt | ±9.8% |
| Dec 18, 2026 | 60 | 35.6% | +0.1pt | ±11.8% |
| Jan 15, 2027 | 88 | 34.1% | +2.2pt | ±13.7% |
| Feb 19, 2027 | 123 | 34.3% | +1.7pt | ±16.2% |
| Mar 19, 2027 | 151 | 34.5% | +2.4pt | ±17.9% |
| May 21, 2027 | 214 | 35.2% | +1.9pt | ±21.6% |
| Jun 17, 2027 | 241 | 34.9% | +1.6pt | ±22.8% |
| Sep 17, 2027 | 333 | 35.0% | +1.7pt | ±26.8% |
| Jan 21, 2028 | 459 | 35.0% | +1.9pt | ±31.3% |
Volatility smile — Nov 20, 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