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.14.2%
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.8.9%
HV6010.9%
IV − HV20スプレッド
+5.2pt
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.
29/60 日分記録済み
Cboe delayed options data · 基準日時： 00:44 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 |
|---|---|---|---|---|
| Oct 19, 2026 | 0 | 15.8% | +0.8pt | ±0.1% |
| Oct 20, 2026 | 1 | 13.4% | +2.7pt | ±0.6% |
| Oct 21, 2026 | 2 | 14.1% | +3.4pt | ±0.8% |
| Oct 22, 2026 | 3 | 14.3% | +4.0pt | ±1.0% |
| Oct 23, 2026 | 4 | 14.5% | +4.5pt | ±1.2% |
| Oct 26, 2026 | 7 | 12.5% | +4.0pt | ±1.4% |
| Oct 27, 2026 | 8 | 12.7% | +4.2pt | ±1.5% |
| Oct 28, 2026 | 9 | 13.7% | +4.5pt | ±1.7% |
| Oct 29, 2026 | 10 | 14.2% | +4.7pt | ±1.9% |
| Oct 30, 2026 | 11 | 14.3% | +4.9pt | ±2.0% |
| Nov 02, 2026 | 14 | 13.7% | +4.7pt | ±2.2% |
| Nov 06, 2026 | 18 | 14.3% | +5.2pt | ±2.6% |
| Nov 13, 2026 | 25 | 14.1% | +5.3pt | ±3.0% |
| Nov 20, 2026 | 32 | 14.2% | +5.5pt | ±3.4% |
| Nov 27, 2026 | 39 | 14.0% | +5.5pt | ±3.7% |
| Nov 30, 2026 | 42 | 13.8% | +5.4pt | ±3.8% |
ボラティリティスマイル — Nov 20, 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