AAMI · IV Rank History

Acadian Asset Management Inc.

Iron condor setups Expected move IV rank history Fibonacci levels Insider trading

IV rank shows where AAMI'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.

AAMI's 30-day at-the-money implied volatility was 39.4% as of Oct 16, 2026. Its 52-week IV rank is 33 and its IV percentile is 46%: IV was lower on 46% of the past year's sessions. Over those 52 weeks it ranged from 30.8% (May 13, 2026) to 56.6% (Nov 14, 2025). On the 90-session window our screeners use, the IV rank is 53.

AAMI IV rank history

382 sessions

Filled line: 90-session IV rank (0–100, left axis). Dashed line: 30-day at-the-money implied volatility (right axis).

AAMI IV rank and implied volatility as of 2026-10-16

52-Week IV Rank

0 = year low, 100 = year high

IV Percentile

46%

of past-year sessions had lower IV

90-Session IV Rank

used by our screeners

30-Day ATM IV

39.4%

1-year average 40.4%

52-Week IV High

56.6%

2025-11-14

52-Week IV Low

30.8%

2026-05-13

History Since

2025-04-07

382 sessions

How these are measured. Implied volatility here is AAMI'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 AAMI 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.

AAMI implied volatility by month

Month	Avg ATM IV	High	Low	Avg IV Rank (90-session)
Oct 2026 (to date)	36.6%	39.4%	31.4%	33
Sep 2026	34.8%	37.0%	32.3%	24
Aug 2026	36.4%	43.0%	31.7%	36
Jul 2026	43.7%	46.6%	39.7%	69
Jun 2026	39.0%	46.4%	32.8%	38
May 2026	35.3%	38.6%	30.8%	17
Apr 2026	40.4%	45.3%	36.0%	41
Mar 2026	44.8%	52.3%	39.5%	54
Feb 2026	43.7%	53.2%	36.4%	49
Jan 2026	40.8%	48.9%	32.6%	36
Dec 2025	38.5%	49.3%	31.5%	30
Nov 2025	47.9%	56.6%	39.1%	68
Oct 2025	44.5%	49.3%	38.6%	56
Sep 2025	45.4%	58.3%	32.1%	54
Aug 2025	36.7%	46.4%	26.8%	21
Jul 2025	37.1%	48.0%	25.1%	17
Jun 2025	36.9%	60.2%	27.0%	16
May 2025	39.5%	72.3%	28.9%	10
Apr 2025	54.1%	90.7%	39.9%	—

AAMI IV rank: last 30 sessions

Date	IV Rank (90-session)	30-Day ATM IV	7-Day ATM IV
2026-10-16	53	39.4%	—
2026-10-15	0	31.4%	—
2026-10-14	39	37.5%	73.3%
2026-10-13	45	38.4%	49.7%
2026-10-12	42	38.0%	54.9%
2026-10-09	37	37.1%	39.2%
2026-10-08	30	36.2%	42.3%
2026-10-07	20	34.6%	33.1%
2026-10-06	37	37.2%	39.5%
2026-10-05	23	35.1%	37.8%
2026-10-02	30	36.1%	37.6%
2026-10-01	40	37.6%	39.2%
2026-09-30	34	36.7%	37.2%
2026-09-29	35	36.9%	39.0%
2026-09-28	15	34.0%	32.0%
2026-09-25	19	34.5%	33.8%
2026-09-24	25	35.4%	—
2026-09-23	18	34.4%	—
2026-09-22	33	36.0%	—
2026-09-21	27	35.1%	—
2026-09-18	10	32.3%	—
2026-09-17	21	34.1%	—
2026-09-16	14	33.0%	56.1%
2026-09-15	30	35.5%	49.0%
2026-09-14	19	33.7%	60.2%
2026-09-11	18	33.6%	40.1%
2026-09-10	33	36.0%	46.4%
2026-09-09	28	35.2%	44.3%
2026-09-08	34	36.1%	49.2%
2026-09-04	18	33.7%	39.2%