Invesco RAFI US 1500 Small-Mid ETF (PRFZ) Open Interest History
Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.
Invesco RAFI US 1500 Small-Mid ETF (PRFZ) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $2.71B, listed on NASDAQ, carrying a beta of 1.22 to the broader market. The Invesco RAFI US 1500 Small-Mid ETF (PRFZ) aims to replicate the performance of the RAFI Fundamental Select US 1500 Index. public since 2006-09-20.
Snapshot as of Jun 26, 2026.
- Spot Price
- $54.36
- Call OI
- 1
- Put OI
- 9
- Total OI
- 10
As of Jun 26, 2026, Invesco RAFI US 1500 Small-Mid ETF (PRFZ) has 10 total contracts outstanding across all expirations. Put/call OI ratio is 9.00 (put-heavy positioning, often indicating hedging or bearish bias). Open interest reflects accumulated positions from prior sessions; persistent growth indicates sustained directional or hedging interest, while sharp drops typically mean post-expiration clean-up.
How PRFZ open interest history Data Feeds Strategy Selection
Strategy selection on Invesco RAFI US 1500 Small-Mid ETF options does not derive from any single metric in isolation. The open interest history view above sits inside a broader read: ATM IV currently sits at 29.0% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the open interest history data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
How to read the PRFZ open-interest data
The open-interest time-series above tracks the total Invesco RAFI US 1500 Small-Mid ETF options inventory outstanding day by day. OI is a stock measure - the cumulative position count - so trends flag accumulating or distributing positioning. Total call OI of 1 versus put OI of 9 gives a put/call OI ratio of 9.00 - structurally a slower-moving signal than the volume-based ratio.
PRFZ flow vs positioning
Volume tells you what flows happened today; OI tells you what positions accumulated. Both can move in opposite directions: rising volume with falling OI means contracts are being closed (covering); rising volume with rising OI means new positions are being opened. The combination matters more than either alone for reading sentiment. Combined with the current negative dealer-gamma regime, large OI clusters tend to act as price repellents that accelerate moves through key strikes.
Using PRFZ OI/volume data alongside other surfaces
Per-strike OI is the input to dealer-gamma calculations: strikes with elevated call OI generate gamma walls that dealers must hedge into as spot approaches them. The gamma-exposure page combines this distribution with the dealers' assumed-long-gamma assumption to project hedge flow. Volume cross-checks recent positioning shifts in the chain that haven't yet shown up in cumulative OI. Pair both with the term-structure view on the volatility page to determine whether the activity is concentrated in near-dated event hedging or longer-dated structural positioning. Front-month expiration for PRFZ sits at 21 days, so near-dated volume currently dominates the flow reading.
Learn how open interest is reported and how to read the data →
Daily open-interest history for PRFZ options over the last ~30 trading days. Each row reflects the end-of-day total OI summed across all listed strikes and expirations.
Most recent 15 trading days (descending). Older history appears in the chart above.
| Date | Call OI | Put OI | Total OI | P/C OI |
|---|---|---|---|---|
| Jun 26, 2026 | 1 | 9 | 10 | 9.00 |
| Jun 25, 2026 | 1 | 8 | 9 | 8.00 |
| Jun 24, 2026 | 1 | 8 | 9 | 8.00 |
| Jun 23, 2026 | 1 | 5 | 6 | 5.00 |
| Jun 22, 2026 | 1 | 4 | 5 | 4.00 |
| Jun 18, 2026 | 2 | 7 | 9 | 3.50 |
| Jun 17, 2026 | 2 | 7 | 9 | 3.50 |
| Jun 16, 2026 | 2 | 7 | 9 | 3.50 |
| Jun 15, 2026 | 2 | 7 | 9 | 3.50 |
| Jun 12, 2026 | 1 | 7 | 8 | 7.00 |
| Jun 11, 2026 | 1 | 7 | 8 | 7.00 |
| Jun 10, 2026 | 1 | 7 | 8 | 7.00 |
| Jun 9, 2026 | 1 | 7 | 8 | 7.00 |
| Jun 8, 2026 | 1 | 7 | 8 | 7.00 |
| Jun 4, 2026 | 1 | 7 | 8 | 7.00 |
Frequently asked PRFZ open interest history questions
- What is the current PRFZ options open interest?
- As of Jun 26, 2026, Invesco RAFI US 1500 Small-Mid ETF (PRFZ) has 10 total contracts outstanding across all listed expirations, split as 1 calls and 9 puts. Open interest reflects accumulated positions from prior trading sessions; it does not include today's volume until end-of-day reconciliation.
- What is the PRFZ put/call open interest ratio?
- Put/call OI ratio of 9.00 is put-heavy, often indicating hedging demand or bearish positioning.
- What does PRFZ open interest tell traders?
- Persistent OI growth indicates sustained directional or hedging interest; sharp drops typically mean post-expiration position cleanup. Heavy OI concentrations at specific strikes act as support and resistance levels because dealer hedging amplifies near those strikes - the gamma profile of the dealer book is concentrated there. Comparing today's volume to standing OI separates opening flow from closing flow.