CABZ · IV Rank History
Roundhill Robotaxi, Autonomous Vehicles & Technology ETF · ETF
IV rank shows where CABZ'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.
CABZ's 30-day at-the-money implied volatility was 49.7% as of Oct 9, 2026. On the 90-session window our screeners use, the IV rank is 14.
CABZ IV rank history
176 sessionsFilled line: 90-session IV rank (0–100, left axis). Dashed line: 30-day at-the-money implied volatility (right axis).
CABZ IV rank and implied volatility as of 2026-10-09
How these are measured. Implied volatility here is CABZ'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; there isn't a full year of history for CABZ yet, so only the 90-session measures are shown.
A high reading means CABZ 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.
CABZ implied volatility by month
| Month | Avg ATM IV | High | Low | Avg IV Rank (90-session) |
|---|---|---|---|---|
| Oct 2026 (to date) | 47.5% | 49.7% | 45.0% | 12 |
| Sep 2026 | 48.6% | 52.7% | 45.1% | 13 |
| Aug 2026 | 78.1% | 139.4% | 35.4% | 43 |
| Jul 2026 | 65.9% | 77.7% | 45.1% | 22 |
| Jun 2026 | 69.8% | 98.8% | 53.2% | 29 |
| May 2026 | 83.6% | 107.0% | 63.0% | 56 |
| Apr 2026 | 86.6% | 119.2% | 60.7% | 61 |
| Mar 2026 | 70.5% | 109.4% | 55.9% | 53 |
| Feb 2026 | 66.0% | 71.9% | 50.8% | 86 |
| Jan 2026 | 40.8% | 43.5% | 37.7% | — |
CABZ IV rank: last 30 sessions
| Date | IV Rank (90-session) | 30-Day ATM IV | 7-Day ATM IV |
|---|---|---|---|
| 2026-10-09 | 14 | 49.7% | 103.5% |
| 2026-10-08 | 12 | 48.3% | 80.7% |
| 2026-10-07 | 10 | 45.8% | 72.7% |
| 2026-10-06 | 12 | 48.3% | 79.2% |
| 2026-10-05 | 12 | 48.3% | 74.7% |
| 2026-10-02 | 11 | 47.2% | 59.7% |
| 2026-10-01 | 9 | 45.0% | 56.1% |
| 2026-09-30 | 9 | 45.1% | 55.2% |
| 2026-09-29 | 10 | 46.2% | 54.5% |
| 2026-09-28 | 11 | 47.0% | 53.2% |
| 2026-09-25 | 12 | 48.2% | 56.0% |
| 2026-09-24 | 13 | 48.5% | — |
| 2026-09-23 | 12 | 48.3% | — |
| 2026-09-22 | 17 | 52.7% | — |
| 2026-09-21 | 15 | 51.1% | — |
| 2026-09-18 | 11 | 46.9% | — |
| 2026-09-17 | 16 | 52.2% | — |
| 2026-09-16 | 11 | 46.9% | 121.4% |
| 2026-09-15 | 11 | 46.5% | 55.7% |
| 2026-09-14 | 11 | 46.7% | 100.6% |
| 2026-09-11 | 14 | 50.2% | 81.4% |
| 2026-09-10 | 11 | 46.4% | 73.9% |
| 2026-09-09 | 11 | 46.7% | 75.5% |
| 2026-09-08 | 15 | 51.3% | 88.7% |
| 2026-09-04 | 16 | 51.6% | 75.6% |
| 2026-09-03 | 15 | 51.1% | 72.2% |
| 2026-09-02 | 13 | 49.4% | 61.0% |
| 2026-09-01 | 12 | 47.6% | 55.9% |
| 2026-08-31 | 14 | 49.5% | 60.0% |
| 2026-08-28 | 12 | 48.3% | 55.6% |
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.