SPY ボラティリティ State Street SPDR S&P 500 ETF
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.12.2%
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.7.4%
HV6012.9%
IV − HV20スプレッド
+4.9pt
ユニバース内パーセンタイルWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
2
自己履歴パーセンタイルWhere today's IV30 sits versus its own daily history — 80 means higher than roughly 80% of recorded observations for that period.
3/60 日分記録済み
Cboe delayed options data · 基準日時： 09:38 UTC · これらの算出方法
IVタームストラクチャー
上場している各限月のアット・ザ・マネーインプライドボラティリティを、残存日数でプロットしたものです。
| 満期日 | DTE | ATM IV | 25Δ スキューThe IV gap between 25-delta puts and 25-delta calls for one expiration. Positive skew means downside protection is priced richer than upside exposure. | インプライドムーブ |
|---|---|---|---|---|
| Sep 03, 2026 | 0 | 11.8% | +1.7pt | ±0.5% |
| Sep 04, 2026 | 1 | 12.2% | +2.0pt | ±0.7% |
| Sep 08, 2026 | 5 | 9.3% | +1.7pt | ±1.0% |
| Sep 09, 2026 | 6 | 10.3% | +3.0pt | ±1.1% |
| Sep 10, 2026 | 7 | 10.6% | +1.2pt | ±1.2% |
| Sep 11, 2026 | 8 | 10.3% | +3.3pt | ±1.3% |
| Sep 14, 2026 | 11 | 10.4% | +3.0pt | ±1.5% |
| Sep 15, 2026 | 12 | 10.2% | +2.7pt | ±1.5% |
| Sep 16, 2026 | 13 | 11.9% | +3.5pt | ±1.9% |
| Sep 17, 2026 | 14 | — | — | — |
| Sep 18, 2026 | 15 | 11.7% | +3.9pt | ±2.1% |
| Sep 25, 2026 | 22 | 12.0% | +4.1pt | ±2.4% |
| Sep 30, 2026 | 27 | 11.7% | +4.2pt | ±2.6% |
| Oct 02, 2026 | 29 | 12.2% | +4.1pt | ±2.8% |
| Oct 09, 2026 | 36 | 12.4% | +4.4pt | ±3.2% |
| Oct 16, 2026 | 43 | 12.8% | +4.5pt | ±3.6% |
ボラティリティスマイル — Sep 18, 2026
ストライク別インプライドボラティリティ。プット側（左側が高い）への傾きがスキューです：下値保護が上値よりも高く織り込まれています。
コールプット
インプライドと実現の比較、日次記録
IV30HV20