BITO volatility ProShares Bitcoin ETF
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.34.5%
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.18.5%
HV6036.8%
IV − HV20 spread
+16.0pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
38
Own-history percentileWhere today's IV30 sits versus its own daily history — 80 means higher than roughly 80% of recorded observations for that period.
29/60 days recorded
Cboe delayed options data · as of 09:34 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 | 3 | 33.5% | +10.9pt | ±3.0% |
| Oct 30, 2026 | 10 | 34.6% | +3.6pt | ±4.9% |
| Nov 06, 2026 | 17 | 34.3% | +6.0pt | ±6.1% |
| Nov 13, 2026 | 24 | 46.9% | +13.0pt | ±9.8% |
| Nov 20, 2026 | 31 | 32.5% | +10.8pt | ±8.4% |
| Nov 27, 2026 | 38 | 38.2% | -3.4pt | ±10.0% |
| Dec 18, 2026 | 59 | 33.7% | +10.1pt | ±10.9% |
| Dec 31, 2026 | 72 | 61.4% | +23.1pt | ±21.7% |
| Jan 15, 2027 | 87 | 42.2% | +19.1pt | ±15.6% |
| Mar 19, 2027 | 150 | 45.4% | +35.9pt | ±23.0% |
| Mar 31, 2027 | 162 | 43.2% | +5.2pt | ±21.4% |
| Jun 17, 2027 | 240 | 57.1% | -10.2pt | ±35.7% |
| Jun 30, 2027 | 253 | 59.6% | +30.3pt | ±38.3% |
| Sep 30, 2027 | 345 | 54.6% | — | ±40.2% |
| Jan 21, 2028 | 458 | 41.5% | +20.5pt | ±35.3% |
Volatility smile — Oct 30, 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