VST volatility Vistra Corp.
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.51.7%
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.58.1%
HV6049.5%
IV − HV20 spread
-6.4pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
71
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 15:46 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 | 53.4% | +0.9pt | ±4.6% |
| Oct 30, 2026 | 11 | 49.8% | +1.0pt | ±7.0% |
| Nov 06, 2026 | 18 | 57.8% | +0.6pt | ±10.3% |
| Nov 13, 2026 | 25 | 53.4% | -3.5pt | ±11.2% |
| Nov 20, 2026 | 32 | 51.2% | -0.6pt | ±12.2% |
| Nov 27, 2026 | 39 | 49.0% | -4.9pt | ±12.8% |
| Dec 18, 2026 | 60 | 46.6% | +0.4pt | ±15.1% |
| Jan 15, 2027 | 88 | 45.8% | -0.0pt | ±17.9% |
| Mar 19, 2027 | 151 | 47.8% | -0.3pt | ±24.4% |
| Apr 16, 2027 | 179 | 48.4% | -0.2pt | ±26.9% |
| Jun 17, 2027 | 241 | 48.9% | -1.1pt | ±31.4% |
| Sep 17, 2027 | 333 | 49.2% | +0.4pt | ±37.0% |
| Dec 17, 2027 | 424 | 49.9% | -0.4pt | ±42.2% |
| Jan 21, 2028 | 459 | 49.5% | -1.1pt | ±43.3% |
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