MSFW · IV Rank History
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IV rank shows where MSFW's implied volatility sits within its own recent range: 0 is the lowest reading in the window, 100 the highest. This page gives the 52-week version, the 90-session version our screeners use, the IV percentile, and the daily history.
MSFW's 30-day at-the-money implied volatility was 34.3% as of Oct 9, 2026. Its 52-week IV rank is 12 and its IV percentile is 16%: IV was lower on 16% of the past year's sessions. Over those 52 weeks it ranged from 18.1% (Aug 18, 2025) to 152.5% (Feb 2, 2026). On the 90-session window our screeners use, the IV rank is 8.
MSFW IV rank history
236 sessionsFilled line: 90-session IV rank (0–100, left axis). Dashed line: 30-day at-the-money implied volatility (right axis).
MSFW IV rank and implied volatility as of 2026-10-09
How these are measured. Implied volatility here is MSFW's 30-day at-the-money IV: the implied volatility of the calls and puts struck nearest the share price, blended between the expirations on either side of 30 days so every reading covers the same horizon. It's the IV level options traders usually quote, and it doesn't jump when the nearest expiration rolls from a weekly to a monthly. The 7-day figure is the same measure a week out, so it reacts first to near-term events such as earnings.
52-week IV rank = (today's IV − 52-week low) ÷ (52-week high − 52-week low) × 100. IV percentile is the share of the past year's sessions that closed with lower IV than today. The 90-session IV rank applies the same rank formula to the last 90 sessions, so it reacts faster.
A high reading means MSFW options are expensive relative to their own recent history, which is common ahead of earnings or after a sharp move. It says nothing about which way the stock will go. The Vol Arb Screener ranks every tracked symbol by these measures.
MSFW implied volatility by month
| Month | Avg ATM IV | High | Low | Avg IV Rank (90-session) |
|---|---|---|---|---|
| Oct 2026 (to date) | 34.6% | 35.6% | 33.4% | 8 |
| Sep 2026 | 31.1% | 34.6% | 27.0% | 4 |
| Aug 2026 | 37.7% | 51.0% | 26.7% | 6 |
| Jul 2026 | 72.9% | 95.9% | 48.5% | 34 |
| Jun 2026 | 68.7% | 127.0% | 32.6% | 29 |
| May 2026 | 77.7% | 137.2% | 35.5% | 33 |
| Apr 2026 | 82.8% | 98.0% | 67.6% | 37 |
| Mar 2026 | 95.7% | 118.5% | 71.8% | 48 |
| Feb 2026 | 111.3% | 152.5% | 67.2% | 62 |
| Jan 2026 | 68.3% | 111.2% | 56.5% | 41 |
| Dec 2025 | 70.1% | 84.6% | 61.2% | 69 |
| Nov 2025 | 66.4% | 81.6% | 53.7% | 65 |
| Oct 2025 | 73.6% | 92.3% | 64.0% | 94 |
| Sep 2025 | 55.6% | 63.9% | 42.5% | 94 |
| Aug 2025 | 35.7% | 44.0% | 18.1% | 84 |
| Jul 2025 | 38.1% | 38.1% | 38.1% | — |
MSFW IV rank: last 30 sessions
| Date | IV Rank (90-session) | 30-Day ATM IV | 7-Day ATM IV |
|---|---|---|---|
| 2026-10-09 | 8 | 34.3% | 47.3% |
| 2026-10-08 | 8 | 34.4% | 41.7% |
| 2026-10-07 | 8 | 34.7% | 34.3% |
| 2026-10-06 | 8 | 34.5% | 37.3% |
| 2026-10-05 | 9 | 35.6% | 34.5% |
| 2026-10-02 | 7 | 33.4% | 33.2% |
| 2026-10-01 | 9 | 35.3% | 32.7% |
| 2026-09-30 | 8 | 34.6% | 32.5% |
| 2026-09-29 | 7 | 33.9% | 33.2% |
| 2026-09-28 | 8 | 34.4% | 32.1% |
| 2026-09-25 | 8 | 34.6% | 31.3% |
| 2026-09-24 | 5 | 31.3% | — |
| 2026-09-23 | 3 | 29.9% | — |
| 2026-09-22 | 4 | 30.5% | — |
| 2026-09-21 | 5 | 31.7% | — |
| 2026-09-18 | 3 | 29.3% | — |
| 2026-09-17 | 3 | 29.8% | — |
| 2026-09-16 | 2 | 29.0% | 102.3% |
| 2026-09-15 | 1 | 28.2% | 75.4% |
| 2026-09-14 | 2 | 29.3% | 56.7% |
| 2026-09-10 | 2 | 29.2% | 50.1% |
| 2026-09-09 | 7 | 34.0% | 47.2% |
| 2026-09-08 | 6 | 33.7% | 43.1% |
| 2026-09-04 | 1 | 27.6% | 30.7% |
| 2026-09-03 | 0 | 27.0% | 30.9% |
| 2026-09-02 | 4 | 31.6% | 34.6% |
| 2026-09-01 | 6 | 33.1% | 33.1% |
| 2026-08-31 | 0 | 26.7% | 29.0% |
| 2026-08-28 | 0 | 27.2% | 27.0% |
| 2026-08-27 | 4 | 34.9% | — |
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