DIA volatility State Street SPDR Dow Jones Industrial Average ETF Trust
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.11.7%
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.8.1%
HV6012.0%
IV − HV20 spread
+3.6pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
2
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 00:34 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 |
|---|---|---|---|---|
| Sep 04, 2026 | 2 | 11.5% | +1.4pt | ±0.7% |
| Sep 11, 2026 | 9 | 10.5% | +2.1pt | ±1.3% |
| Sep 18, 2026 | 16 | 11.4% | +2.9pt | ±2.0% |
| Sep 25, 2026 | 23 | 11.4% | +2.9pt | ±2.3% |
| Sep 30, 2026 | 28 | 11.4% | +2.9pt | ±2.6% |
| Oct 02, 2026 | 30 | 11.7% | +2.8pt | ±2.7% |
| Oct 09, 2026 | 37 | 11.9% | +2.9pt | ±3.1% |
| Oct 16, 2026 | 44 | 12.1% | +2.9pt | ±3.4% |
| Nov 20, 2026 | 79 | 13.1% | +3.2pt | ±4.9% |
| Dec 18, 2026 | 107 | 13.4% | +3.5pt | ±5.9% |
| Dec 31, 2026 | 120 | 13.4% | +3.4pt | ±6.2% |
| Jan 15, 2027 | 135 | 13.8% | +3.6pt | ±6.8% |
| Mar 19, 2027 | 198 | 14.4% | +3.8pt | ±8.6% |
| Mar 31, 2027 | 210 | 14.6% | +3.9pt | ±9.0% |
| Jun 17, 2027 | 288 | 14.8% | +3.9pt | ±10.8% |
| Jun 30, 2027 | 301 | 15.1% | +3.2pt | ±11.1% |
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