Which resets first, AIOO or PQXX?

AIOO ends its outcome period on Dec 31, 2026 and PQXX on Dec 31, 2026. A new cap is set the day after each.

Which is cheaper, AIOO or PQXX?

AIOO charges 0.64% a year and PQXX charges 0.50%, so PQXX is cheaper. Fees come from each fund's prospectus.

AIOO vs PQXX: which one stands where?

As of Oct 2, 2026 PQXX can fall 0.3% before its buffer engages and AIOO 0.3%. AllianzIM U.S. Equity Buffer100 ETF - Jan and PGIM S&P 500 Quarterly Buffer 20 ETF.

PQXX costs 0.14 points a year less; AIOO is 15.1 times larger.

	AIOO	PQXX
Expense ratio	0.64%	0.50%
Net assets	$50m	$3m
Total return, 1 year	+3.8%	not published
What it tracks	SPY	SPY
Holdings in common	not published

0.3%

AIOO can fall this far before its buffer

0.3%

PQXX can fall this far before its buffer

uncapped

AIOO can still gain

2.2%

PQXX can still gain

AIOONo cap

AIOO: reference +0.9% since period start, fund +0.3%; buffer Floor; no cap; No cap.

PQXXBetween buffer and cap

PQXX: reference +0.9% since period start, fund +0.2%; buffer 0 to −20; cap +2.5%; Between buffer and cap.

These are two different products. AIOO is a floor fund, which caps how far a holder can fall. PQXX is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.

AIOO has no cap. It takes 30% of whatever the index does, where PQXX takes all of the rise up to 2.5% and nothing above it.

Where each one stands today

AIOO resets first, on Dec 31, 2026, 90 days from now; PQXX runs to Dec 31, 2026, 90 days. A fall from here reaches AIOO’s buffer after 0.3% and PQXX’s after 0.3%. Both track SPY, so what separates them is where each is in its own period.

Every figure is ETFIQ’s own, from the issuer’s published outcome-period terms. A buffer ETF holds FLEX options on its reference index rather than shares, so there is no holdings overlap between two of them to report.

Performance, window by window

	Total return		Gap to the reference
Window	AIOO	PQXX	AIOO	PQXX
3 months	+1.0%	+2.1%	−2.6 pts	−1.4 pts
6 months	+3.3%	not published	−14.7 pts	not published
1 year	+3.8%	not published	−12.4 pts	not published

AIOO and PQXX over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

AIOO

AllianzIM U.S. Equity Buffer100 ETF - Jan · Absorbs the whole loss on SPY and does not cap the gain, over a period ending Dec 31, 2026

PQXX

PGIM S&P 500 Quarterly Buffer 20 ETF · Absorbs the first 20% of loss on SPY and caps the gain at 2.5%, over a period ending Dec 31, 2026

Issuer AllianzIM PGIM

Reference index SPY SPY

Buffer 100% 20%

Outcome period Oct 1, 2026 to Dec 31, 2026 Oct 1, 2026 to Dec 31, 2026

Days left 90 90

Starting cap uncapped +2.5%

Can still gain uncapped 2.2%

Fall before buffer 0.3% 0.3%

Protection left, index points 100.0% of 100.0% 20.0% of 20.0%

Index return this period +0.9% +0.9%

Fund return this period +0.3% +0.2%

State today Uncapped Open

Expense ratio 0.64% 0.50%

Net assets $50m $3m

AIOO and PQXX on the same fields, as of Oct 2, 2026. Source: ETFIQ.

AIOO in plain words

This fund has no cap. It takes a share of any further rise in SPY. The fund's price can fall 0.3% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 0.9% from today's level to the point where the buffer begins. Protection left, in index points: 100.0% of the 100.0% buffer still sits below today's SPY level. 90 days remained on Oct 2, 2026. On Dec 31, 2026 the period ends and a new cap is set.

PQXX in plain words

From its price on Oct 2, 2026, the fund can gain about 2.2% more before it reaches its cap. Protection left, in index points: 20.0% of the 20.0% buffer still sits below today's SPY level.

Questions people ask

Which resets first, AIOO or PQXX?: AIOO ends its outcome period on Dec 31, 2026 and PQXX on Dec 31, 2026. A new cap is set the day after each.
Which is cheaper, AIOO or PQXX?: AIOO charges 0.64% a year and PQXX charges 0.50%, so PQXX is cheaper. Fees come from each fund's prospectus.

Other comparisons

AIOO vs DECM AIOO vs DSEP AIOO vs EALT AIOO vs FDEC PQXX vs AJAN PQXX vs AOCT PQXX vs APOC PQXX vs BALT

SPDR® S&P 500® ETF Trust →AIOO on its own →PQXX on its own →How every figure is computed →Standards and sources →

Where these figures came from

AIOO filings on SEC EDGAR ↗AllianzIM page for AIOO ↗PQXX filings on SEC EDGAR ↗PGIM website ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement. A comparison is not a recommendation.

Cite this page

ETFIQ, AIOO against PQXX, data as of Oct 2, 2026. https://etfiq.com/compare/buffer/aioo-vs-pqxx

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.