COYY · IV Rank History

GraniteShares YieldBOOST COIN ETF · ETF

IV rank shows where COYY'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.

COYY's 30-day at-the-money implied volatility was 40.6% as of Oct 9, 2026. Its 52-week IV rank is 7 and its IV percentile is 10%: IV was lower on 10% of the past year's sessions. Over those 52 weeks it ranged from 24.9% (May 21, 2026) to 250.6% (May 28, 2026). On the 90-session window our screeners use, the IV rank is 4.

COYY IV rank history

225 sessions

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

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

52-Week IV Rank
7
0 = year low, 100 = year high
IV Percentile
10%
of past-year sessions had lower IV
90-Session IV Rank
4
used by our screeners
30-Day ATM IV
40.6%
1-year average 85.5%
7-Day ATM IV
66.3%
90-session rank 6
52-Week IV High
250.6%
2026-05-28
52-Week IV Low
24.9%
2026-05-21
History Since
2025-10-23
225 sessions

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

COYY implied volatility by month

MonthAvg ATM IVHighLowAvg IV Rank (90-session)
Oct 2026 (to date) 39.3% 46.8% 32.1% 6
Sep 2026 40.0% 53.7% 31.6% 7
Aug 2026 42.6% 57.2% 36.4% 8
Jul 2026 47.3% 57.0% 40.9% 10
Jun 2026 54.3% 194.6% 39.0% 13
May 2026 137.1% 250.6% 24.9% 55
Apr 2026 135.8% 182.5% 104.0% 55
Mar 2026 109.3% 174.1% 54.3% 35
Feb 2026 123.5% 202.3% 81.7% 49
Jan 2026 108.6% 153.9% 79.1% 44
Dec 2025 81.1% 102.6% 66.1% 15
Nov 2025 90.2% 163.0% 68.0% 23
Oct 2025 86.4% 128.0% 66.9% —

COYY IV rank: last 30 sessions

DateIV Rank (90-session)30-Day ATM IV7-Day ATM IV
2026-10-09 4 40.6% 66.3%
2026-10-08 3 37.4% 61.9%
2026-10-07 10 46.8% 59.4%
2026-10-06 3 32.1% 62.2%
2026-10-05 3 32.3% 59.1%
2026-10-02 8 42.3% 58.4%
2026-10-01 8 43.9% 58.3%
2026-09-30 3 32.2% 38.1%
2026-09-29 3 31.6% 33.8%
2026-09-28 9 46.3% 31.6%
2026-09-24 3 31.6% —
2026-09-23 4 33.5% —
2026-09-22 3 32.2% —
2026-09-21 6 38.4% —
2026-09-17 5 36.3% —
2026-09-16 7 40.9% 108.8%
2026-09-15 8 43.3% 62.6%
2026-09-14 10 48.2% 79.3%
2026-09-10 12 50.9% 53.7%
2026-09-09 8 42.3% 75.1%
2026-09-08 9 44.3% 50.3%
2026-09-04 5 37.0% 42.0%
2026-09-03 7 40.2% 42.3%
2026-09-02 13 53.7% 39.1%
2026-09-01 5 37.0% 37.0%
2026-08-31 8 41.9% 41.6%
2026-08-28 6 37.3% 36.0%
2026-08-27 9 45.2% —
2026-08-25 7 41.0% —
2026-08-24 8 44.1% —

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.