DECO · IV Rank History

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IV rank shows where DECO'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.

DECO's 30-day at-the-money implied volatility was 48.6% as of Oct 9, 2026. Its 52-week IV rank is 59 and its IV percentile is 37%: IV was lower on 37% of the past year's sessions. Over those 52 weeks it ranged from 28.3% (Dec 19, 2025) to 62.9% (Mar 31, 2026). On the 90-session window our screeners use, the IV rank is 23.

DECO IV rank history

377 sessions

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

DECO IV rank and implied volatility as of 2026-10-09

52-Week IV Rank

0 = year low, 100 = year high

IV Percentile

37%

of past-year sessions had lower IV

90-Session IV Rank

used by our screeners

30-Day ATM IV

48.6%

1-year average 48.4%

7-Day ATM IV

50.3%

90-session rank 18

52-Week IV High

62.9%

2026-03-31

52-Week IV Low

28.3%

2025-12-19

History Since

2025-04-07

377 sessions

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

DECO implied volatility by month

Month	Avg ATM IV	High	Low	Avg IV Rank (90-session)
Oct 2026 (to date)	50.8%	51.8%	48.6%	43
Sep 2026	50.2%	53.4%	47.4%	37
Aug 2026	53.7%	56.2%	50.5%	62
Jul 2026	54.5%	57.0%	50.8%	50
Jun 2026	51.1%	55.4%	46.2%	35
May 2026	49.2%	53.4%	46.3%	51
Apr 2026	53.1%	57.5%	48.1%	72
Mar 2026	57.8%	62.9%	52.1%	91
Feb 2026	54.4%	59.6%	48.4%	88
Jan 2026	39.1%	50.1%	35.1%	56
Dec 2025	33.6%	39.5%	28.3%	11
Nov 2025	40.6%	47.2%	36.1%	29
Oct 2025	41.3%	46.5%	37.0%	27
Sep 2025	38.6%	42.8%	35.8%	7
Aug 2025	42.0%	46.1%	38.0%	5
Jul 2025	47.5%	53.4%	43.1%	16
Jun 2025	51.6%	58.0%	41.8%	20
May 2025	52.5%	71.0%	46.1%	18
Apr 2025	59.9%	78.4%	50.9%	—

DECO IV rank: last 30 sessions

Date	IV Rank (90-session)	30-Day ATM IV	7-Day ATM IV
2026-10-09	23	48.6%	50.3%
2026-10-08	51	51.7%	48.1%
2026-10-07	50	51.6%	54.3%
2026-10-06	50	51.6%	51.6%
2026-10-05	44	51.0%	50.1%
2026-10-02	30	49.4%	46.9%
2026-10-01	52	51.8%	53.2%
2026-09-30	40	50.5%	50.9%
2026-09-29	38	50.2%	52.2%
2026-09-28	67	53.4%	55.1%
2026-09-25	45	51.1%	51.0%
2026-09-24	33	49.8%	—
2026-09-23	34	49.9%	—
2026-09-22	53	52.0%	—
2026-09-21	54	52.0%	—
2026-09-18	30	49.4%	—
2026-09-17	29	49.3%	—
2026-09-16	23	48.6%	70.9%
2026-09-15	32	49.7%	54.5%
2026-09-14	37	50.2%	59.0%
2026-09-11	12	47.4%	52.5%
2026-09-10	47	51.3%	51.6%
2026-09-09	36	50.1%	48.8%
2026-09-08	41	50.6%	51.5%
2026-09-04	13	47.5%	46.5%
2026-09-03	20	48.3%	49.8%
2026-09-02	52	51.8%	54.5%
2026-09-01	45	51.1%	48.0%
2026-08-31	69	53.6%	52.4%
2026-08-28	44	51.0%	50.3%