SPIP · IV Rank History

State Street SPDR Portfolio TIPS ETF · ETF

IV rank shows where SPIP'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.

SPIP's 30-day at-the-money implied volatility was 23.2% as of Oct 21, 2026. Its 52-week IV rank is 55 and its IV percentile is 96%: IV was lower on 96% of the past year's sessions. Over those 52 weeks it ranged from 5.0% (Aug 17, 2026) to 38.2% (May 6, 2026). On the 90-session window our screeners use, the IV rank is 73.

SPIP IV rank history

504 sessions

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

SPIP IV rank and implied volatility as of 2026-10-21

52-Week IV Rank
55
0 = year low, 100 = year high
IV Percentile
96%
of past-year sessions had lower IV
90-Session IV Rank
73
used by our screeners
30-Day ATM IV
23.2%
1-year average 12.3%
52-Week IV High
38.2%
2026-05-06
52-Week IV Low
5.0%
2026-08-17
History Since
2023-05-02
834 sessions

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

SPIP implied volatility by month

MonthAvg ATM IVHighLowAvg IV Rank (90-session)
Oct 2026 (to date) 13.3% 23.2% 7.7% 33
Sep 2026 12.4% 23.0% 5.5% 22
Aug 2026 9.5% 29.8% 5.0% 11
Jul 2026 13.9% 21.3% 9.3% 22
Jun 2026 17.8% 26.9% 9.4% 37
May 2026 17.7% 38.2% 8.8% 40
Apr 2026 13.1% 28.8% 7.3% 42
Mar 2026 12.9% 18.9% 7.8% 43
Feb 2026 8.5% 13.9% 5.9% 17
Jan 2026 8.0% 12.8% 5.5% 13
Dec 2025 9.5% 20.1% 5.9% 19
Nov 2025 13.7% 23.6% 8.5% 51
Oct 2025 11.9% 17.5% 7.7% 50
Sep 2025 9.4% 16.8% 7.6% 23
Aug 2025 8.7% 15.4% 6.2% 8
Jul 2025 7.9% 9.1% 6.9% 4
Jun 2025 10.5% 18.2% 7.6% 14
May 2025 10.5% 22.2% 8.4% 14
Apr 2025 16.6% 34.7% 7.8% 48
Mar 2025 9.5% 19.5% 7.0% 21
Feb 2025 8.8% 14.8% 6.5% 12
Jan 2025 11.5% 20.5% 8.1% 26
Dec 2024 10.6% 19.6% 7.2% 20
Nov 2024 11.3% 21.0% 7.8% 20
Oct 2024 11.5% 23.0% 9.5% 23
Sep 2024 11.4% 24.1% 8.5% 16
Aug 2024 10.2% 15.6% 8.8% 10
Jul 2024 12.7% 24.4% 8.0% 19
Jun 2024 10.1% 13.5% 8.5% 12
May 2024 9.0% 13.7% 7.4% 9
Apr 2024 9.9% 42.2% 7.8% 14
Mar 2024 7.7% 9.2% 5.8% 4
Feb 2024 9.0% 9.8% 8.2% 3
Jan 2024 9.4% 10.3% 8.6% 7
Dec 2023 11.5% 29.0% 9.1% 27
Nov 2023 10.7% 12.0% 9.5% 33
Oct 2023 11.9% 13.2% 10.7% 25
Sep 2023 9.1% 10.8% 7.8% 2
Aug 2023 10.3% 16.2% 8.8% 3
Jul 2023 9.1% 10.2% 7.5% 2
Jun 2023 9.0% 26.8% 6.7% 1
May 2023 21.9% 117.4% 9.5% 1

SPIP IV rank: last 30 sessions

DateIV Rank (90-session)30-Day ATM IV7-Day ATM IV
2026-10-21 73 23.2% —
2026-10-20 11 7.7% —
2026-10-19 22 10.6% —
2026-10-16 16 8.9% —
2026-10-15 31 12.7% —
2026-10-14 33 13.2% 35.1%
2026-10-13 17 9.3% 50.7%
2026-10-12 67 21.7% 50.5%
2026-10-09 20 10.0% 12.0%
2026-10-08 30 12.4% 29.2%
2026-10-07 28 12.0% 15.2%
2026-10-06 55 18.6% 32.3%
2026-10-05 24 11.0% 14.7%
2026-10-02 25 11.3% 9.8%
2026-10-01 40 16.3% 21.7%
2026-09-30 19 10.3% 12.1%
2026-09-29 25 13.4% 19.2%
2026-09-28 51 21.9% 31.6%
2026-09-25 42 19.0% 24.5%
2026-09-24 32 15.6% —
2026-09-23 26 13.6% —
2026-09-22 27 14.0% —
2026-09-21 8 7.8% —
2026-09-18 54 23.0% —
2026-09-17 28 14.3% —
2026-09-16 15 9.9% 49.7%
2026-09-15 18 11.1% 25.6%
2026-09-14 40 18.4% 95.9%
2026-09-11 35 16.7% 48.5%
2026-09-10 4 6.5% 8.4%

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.