AIOO vs DECM: which one stands where?

As of Oct 1, 2026 DECM can fall 5.2% before its buffer engages and AIOO 0.0%, and DECM resets 13 days sooner. AllianzIM U.S. Equity Buffer100 ETF - Jan and FT Vest U.S. Equity Max Buffer ETF - December.

0.0%
AIOO can fall this far before its buffer
5.2%
DECM can fall this far before its buffer
uncapped
AIOO can still gain
1.5%
DECM can still gain
AIOONo cap
No capAIOO: reference 0.0% since period start, fund 0.0%; buffer Floor; no cap; No cap.full floor beneathfull floor0% period startno cap, 29.83% participationTODAY · SPY 0.0%No capAIOO: reference 0.0% since period start, fund 0.0%; buffer Floor; no cap; No cap.full floor beneathfull floor0% startno capTODAY · SPY 0.0%

AIOO: reference 0.0% since period start, fund 0.0%; buffer Floor; no cap; No cap.

DECMAt its cap
At its capDECM: reference +12.0% since period start, fund +4.6%; buffer 0 to −51; cap +7.0%; At its cap.50.6 pts of buffer+7%−50.6% floor0% period start+7.0% capTODAY · SPY +12.0%At its capDECM: reference +12.0% since period start, fund +4.6%; buffer 0 to −51; cap +7.0%; At its cap.50.6 pts−50.6% floor0% start+7.0% capTODAY · SPY +12.0%

DECM: reference +12.0% since period start, fund +4.6%; buffer 0 to −51; cap +7.0%; At its cap.

These are two different products. AIOO is a floor fund, which caps how far a holder can fall. DECM 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 DECM takes all of the rise up to 7.0% and nothing above it.

DECM is already at its cap, so more rise in the index adds nothing to it before the period ends.

Where each one stands today

DECM resets first, on Dec 18, 2026, 79 days from now; AIOO runs to Dec 31, 2026, 92 days. A fall from here reaches AIOO’s buffer after 0.0% and DECM’s after 5.2%. 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 returnGap to the reference
WindowAIOODECMAIOODECM
3 months+0.4%+1.6%−2.1 pts−0.9 pts
6 months+2.9%+4.7%−14.1 pts−12.3 pts
1 year+3.6%+6.3%−12.1 pts−9.4 pts

AIOO and DECM 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
DECM
FT Vest U.S. Equity Max Buffer ETF - December · Absorbs the first 51% of loss on SPY and caps the gain at 7.0%, over a period ending Dec 18, 2026
Issuer AllianzIM First Trust
Reference index SPY SPY
Buffer 100% 51%
Outcome period Oct 1, 2026 to Dec 31, 2026 Dec 22, 2025 to Dec 18, 2026
Days left 92 79
Starting cap uncapped +7.0%
Can still gain uncapped 1.5%
Fall before buffer 0.0% 5.2%
Protection left, index points 100.0% of 100.0% 50.6% of 50.6%
Index return this period 0.0% +12.0%
Fund return this period 0.0% +4.6%
State today Uncapped At cap
Expense ratio 0.64% 0.85%
Net assets $50m $36m

AIOO and DECM on the same fields, as of Oct 1, 2026. Source: ETFIQ.

AIOO in plain words

This fund has no cap. It takes a share of any further rise in SPY. Protection left, in index points: 100.0% of the 100.0% buffer still sits below today's SPY level. 92 days remained on Oct 1, 2026. On Dec 31, 2026 the period ends and a new cap is set.

DECM in plain words

SPY had already risen past this fund's cap of +7.0% for the period on Oct 1, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 1.5% as the period runs out. The fund's price can fall 5.2% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 10.7% from today's level to the point where the buffer begins. Protection left, in index points: 50.6% of the 50.6% buffer still sits below today's SPY level. 79 days remained on Oct 1, 2026. On Dec 18, 2026 the period ends and a new cap is set.

Questions people ask

Which resets first, AIOO or DECM?
AIOO ends its outcome period on Dec 31, 2026 and DECM on Dec 18, 2026. A new cap is set the day after each.
Which is cheaper, AIOO or DECM?
AIOO charges 0.64% a year and DECM charges 0.85%, so AIOO is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, AIOO against DECM, data as of Oct 1, 2026. https://etfiq.com/compare/buffer/aioo-vs-decm

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.