Data as of Nov 4, 2026.

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Buffer ETFs

DECW vs ZDEK: Cap, Buffer & Days Left

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As of Nov 4, 2026 DECW can fall 9.2% before its buffer engages and ZDEK 6.0%.

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Net assets: $147m on Nov 3, 2026 for AllianzIM U.S. Equity Buffer20 ETF - Dec, and $105m on Nov 4, 2026 for Innovator Equity Defined Protection ETF - 1 Yr December.

At a glance
9.2%
DECW can fall this far before its buffer
6.0%
ZDEK can fall this far before its buffer
1.1%
DECW can still gain
0.5%
ZDEK can still gain
DECW At its cap
At its capDECW: reference +12.2% since period start, fund +9.3%; buffer 0 to −20; cap +11.3%; At its cap. Data to Nov 4, 2026.20 pts of buffer+11.3% gained−20.0% floor0% period start+11.3% capTODAY · SPY +12.2%At its capDECW: reference +12.2% since period start, fund +9.3%; buffer 0 to −20; cap +11.3%; At its cap. Data to Nov 4, 2026.20 pts+11.3%−20.0% floor0% start+11.3% capTODAY · SPY +12.2%

DECW: reference +12.2% since period start, fund +9.3%; buffer 0 to −20; cap +11.3%; At its cap. Data to Nov 4, 2026.

DECW: reference +12.2% since period start, fund +9.3%; buffer 0 to −20; cap +11.3%; At its cap. Data to Nov 4, 2026.
ZDEK At its cap
At its capZDEK: reference +12.2% since period start, fund +5.5%; buffer Floor; cap +6.8%; At its cap. Data to Nov 4, 2026.full floor beneath+6.8%full floor0% period start+6.8% capTODAY · SPY +12.2%At its capZDEK: reference +12.2% since period start, fund +5.5%; buffer Floor; cap +6.8%; At its cap. Data to Nov 4, 2026.full floor beneathfull floor0% start+6.8% cap+6.8% gain capturedTODAY · SPY +12.2%

ZDEK: reference +12.2% since period start, fund +5.5%; buffer Floor; cap +6.8%; At its cap. Data to Nov 4, 2026.

Data to Nov 4, 2026.

Pair scorecard

DECW costs 0.05 points a year less; their one-year returns differ by 4.3 points; DECW is 1.4 times larger.

Points (pts) are percentage points.

DECW vs ZDEK: Cap, Buffer & Days Left
MeasureDECWZDEK
Return
Total return, 1 year+10.7%+6.4%
Drawdown
Index fall to the buffer10.9%10.8%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.74%0.79%
Net assets, as of Nov 3, 2026$147m$104m
Holdings
Holdings in commonnot published

Method

Risk and return

Dec 13, 2024 to Oct 30, 2026 · 98 weekly returns · each against SPY
DECW ZDEK
Return
Total return edge DECW +18.9% +12.2%
Annualized edge DECW +9.6% +6.3%
Price return edge DECW +18.9% +12.2%
Risk
Volatility edge ZDEK 6.5% 2.9%
Max drawdown edge ZDEK −7.8% −3.1%
Downside capture 45.4% 19.0%
Beta 0.42 0.18
Risk-adjusted
Sharpe edge DECW 0.84 0.74
Sortino edge DECW (slight) 1.24 1.18
Treynor 0.128 0.120
Calmar edge ZDEK 1.23 2.06
Against the benchmark
Alpha +1.1% a year +0.3% a year
Alpha t-stat 1.25 0.40
Information ratio −0.55 −0.65
Tracking error 8.7% 12.3%
Reading

From Dec 2024 to Oct 2026, DECW returned more: +18.9% to +12.2%. ZDEK swung less: 2.9% to 6.5%. ZDEK fell less at its worst: −3.1% to −7.8%.

Full scorecard

19 measures, with how each is measured
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Risk and return: DECW vs ZDEK: Cap, Buffer & Days Left
MeasureDECWZDEKSPYEdgeHow it is measured
Return
Total return+18.9%+12.2%DECWPrice change plus distributions, reinvested.
Annualized+9.6%+6.3%DECWTotal return as a yearly rate.
Price return+18.9%+12.2%DECWPrice change alone, distributions left out.
Risk
Volatility6.5%2.9%ZDEKSpread of weekly returns, annualized. Lower is steadier.
Downside deviation4.4%1.8%ZDEKLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−7.8%−3.1%ZDEKDeepest fall from a high to the low after it.
Upside capture35.8%16.3%100.0%DECWShare of its benchmark's rise caught in the weeks it rose.
Downside capture45.4%19.0%100.0%ZDEKShare of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.420.181.00ZDEK lowerHow far it moves for each 1% its benchmark moves.
R squared0.970.851.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.840.74DECWReturn above Treasury bills per unit of volatility.
Sortino1.241.18DECW (slight)Return above Treasury bills per unit of downside deviation.
Treynor0.1280.1200.102DECW (slight)Return above Treasury bills per unit of beta.
Calmar1.232.06ZDEKAnnualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYSPYSPYThe ETF each fund is measured against.
Alpha+1.1% a year+0.3% a year0.0%Not significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat1.250.40Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−0.6% to +2.8%−1.3% to +2.0%Both include zeroThe 95% range for the yearly alpha.
Information ratio−0.55−0.65DECWReturn against its benchmark per unit of tracking error.
Tracking error8.7%12.3%0.0%Not an edgeHow far weekly returns stray from the benchmark, annualized.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 98 weekly returns. Cash rate: the 13-week Treasury bill.

Window by window

Window by window: DECW vs ZDEK: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowDECWZDEKDECWZDEK
3 months+1.8%+1.4%+2.2 pts+1.8 pts
6 months+4.7%+3.0%+0.2 pts−1.5 pts
1 year+10.7%+6.4%−2.8 pts−7.2 pts
3 years+40.8%–−35.6 pts–
Since launchNot the same days: DECW Dec 2022 · ZDEK Dec 2024+48.7%+12.8%−39.5 pts−14.2 pts

Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. – means no data for this window. Open this comparison in the app →

Side by side

DECW AllianzIM U.S. Equity Buffer20 ETF - Dec · Absorbs the first 20% of loss on SPY and caps the gain at 11.3%, over a period ending Nov 30, 2026 ZDEK Innovator Equity Defined Protection ETF - 1 Yr December · Absorbs the whole loss on SPY and caps the gain at 6.8%, over a period ending Nov 30, 2026
Reference index SPY SPY
Buffer 20% 100%
Outcome period Dec 1, 2025 to Nov 30, 2026 Nov 30, 2025 to Nov 30, 2026
Days left 26 26
Starting cap +11.3% +6.8%
Can still gain 1.1% 0.5%
Fall before buffer 9.2% 6.0%
Protection left, index points 20.0% of 20.0% 100.0% of 100.0%
Index return this period +12.2% +12.2%
Fund return this period +9.3% +5.5%
State today At cap At cap
Expense ratio 0.74% 0.79%
Net assets, DECW as of Nov 3, 2026 and ZDEK as of Nov 4, 2026 $147m $105m

As of Nov 4, 2026. Source: ETFIQ.

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

Both are already at their cap, so neither gains from more rise in the index before the period ends.

Where each one stands today

DECW resets first, on Nov 30, 2026, 26 days from now; ZDEK runs to Nov 30, 2026, 26 days. DECW can still gain 1.1% before its cap, ZDEK 0.5%. A fall from here reaches DECW’s buffer after 9.2% and ZDEK’s after 6.0%. Both track SPY, so what separates them is where each is in its own period.

Client brief:

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About each fund
DECW

SPY had already risen past this fund's cap of +11.3% for the period on Nov 4, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 1.1% as the period runs out. The fund's price can fall 9.2% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 10.9% from today's level to the point where the buffer begins. Protection left, in index points: 20.0% of the 20.0% buffer still sits below today's SPY level. 26 days remained on Nov 4, 2026. On Nov 30, 2026 the period ends and a new cap is set.

ZDEK

SPY had already risen past this fund's cap of +6.8% for the period on Nov 4, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 0.5% as the period runs out. The fund's price can fall 6.0% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 10.8% 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.

Questions people ask

Which has more room to gain, DECW or ZDEK?
From their prices on Nov 4, 2026, DECW can gain about 1.1% before its cap and ZDEK about 0.5%, so DECW has more room left this period.
Which resets first, DECW or ZDEK?
DECW ends its outcome period on Nov 30, 2026 and ZDEK on Nov 30, 2026. A new cap is set the day after each.
Which is cheaper, DECW or ZDEK?
DECW charges 0.74% a year and ZDEK charges 0.79%, so DECW is cheaper. Fees come from each fund's prospectus.
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Sources and dates

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How this is computed

ETFIQ calculates every number from each issuer’s published outcome-period terms. Buffer ETFs hold options on an index, not shares, so there is no holdings overlap to report.

Every number is an ETFIQ calculation with distributions reinvested.

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ETFIQ, DECW against ZDEK, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/decw-vs-zdek

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