Data as of Nov 4, 2026.

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Buffer ETFs

SEPW vs ZSEP: Cap, Buffer & Days Left

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As of Nov 4, 2026 SEPW can fall 1.4% before its buffer engages and ZSEP 0.8%.

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Net assets: $211m on Nov 3, 2026 for AllianzIM U.S. Equity Buffer20 ETF - Sep, and $263m on Nov 4, 2026 for Innovator Equity Defined Protection ETF - 1 Yr September.

At a glance
1.4%
SEPW can fall this far before its buffer
0.8%
ZSEP can fall this far before its buffer
10.9%
SEPW can still gain
8.1%
ZSEP can still gain
SEPW Buffer working
Buffer workingSEPW: reference 0.0% since period start, fund +0.6%; buffer 0 to −20; cap +12.3%; Buffer working. Data to Nov 4, 2026.20 of 20 pts of buffer left+12.3% more to the cap−20.0% floor0% period start+12.3% capTODAY · SPY 0.0%Buffer workingSEPW: reference 0.0% since period start, fund +0.6%; buffer 0 to −20; cap +12.3%; Buffer working. Data to Nov 4, 2026.20 pts−20.0% floor0% start+12.3% cap+12.3% more to the capTODAY · SPY 0.0%

SEPW: reference 0.0% since period start, fund +0.6%; buffer 0 to −20; cap +12.3%; Buffer working. Data to Nov 4, 2026.

SEPW: reference 0.0% since period start, fund +0.6%; buffer 0 to −20; cap +12.3%; Buffer working. Data to Nov 4, 2026.
ZSEP Buffer working
Buffer workingZSEP: reference −0.1% since period start, fund +0.6%; buffer Floor; cap +8.9%; Buffer working. Data to Nov 4, 2026.full floor beneath+8.9% to capfull floor0% period start+8.9% capTODAY · SPY −0.1%Buffer workingZSEP: reference −0.1% since period start, fund +0.6%; buffer Floor; cap +8.9%; Buffer working. Data to Nov 4, 2026.full floor beneathfull floor0% start+8.9% cap+8.9% more to the capTODAY · SPY −0.1%

ZSEP: reference −0.1% since period start, fund +0.6%; buffer Floor; cap +8.9%; Buffer working. Data to Nov 4, 2026.

Data to Nov 4, 2026.

Pair scorecard

SEPW costs 0.05 points a year less; their one-year returns differ by 2.6 points; ZSEP is 1.2 times larger.

Points (pts) are percentage points.

SEPW vs ZSEP: Cap, Buffer & Days Left
MeasureSEPWZSEP
Return
Total return, 1 year+8.1%+5.5%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.74%0.79%
Net assets, as of Nov 3, 2026$211m$262m
Holdings
Holdings in commonnot published

Method

Risk and return

Sep 13, 2024 to Oct 30, 2026 · 111 weekly returns · each against SPY
SEPW ZSEP
Return
Total return edge SEPW +19.9% +13.0%
Annualized edge SEPW +8.9% +5.9%
Price return edge SEPW +19.9% +13.0%
Risk
Volatility edge ZSEP 6.0% 3.1%
Max drawdown edge ZSEP −7.5% −3.7%
Downside capture 40.8% 19.0%
Beta 0.39 0.20
Risk-adjusted
Sharpe edge SEPW 0.77 0.55
Sortino edge SEPW 1.14 0.83
Treynor 0.117 0.087
Calmar edge ZSEP 1.18 1.59
Against the benchmark
Alpha −0.1% a year −0.7% a year
Alpha t-stat −0.13 −0.86
Information ratio −0.83 −0.88
Tracking error 9.0% 11.8%
Reading

From Sep 2024 to Oct 2026, SEPW returned more: +19.9% to +13.0%. ZSEP swung less: 3.1% to 6.0%. ZSEP fell less at its worst: −3.7% to −7.5%.

Full scorecard

19 measures, with how each is measured
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Risk and return: SEPW vs ZSEP: Cap, Buffer & Days Left
MeasureSEPWZSEPSPYEdgeHow it is measured
Return
Total return+19.9%+13.0%SEPWPrice change plus distributions, reinvested.
Annualized+8.9%+5.9%SEPWTotal return as a yearly rate.
Price return+19.9%+13.0%SEPWPrice change alone, distributions left out.
Risk
Volatility6.0%3.1%ZSEPSpread of weekly returns, annualized. Lower is steadier.
Downside deviation4.0%2.1%ZSEPLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−7.5%−3.7%ZSEPDeepest fall from a high to the low after it.
Upside capture30.5%15.3%100.0%SEPWShare of its benchmark's rise caught in the weeks it rose.
Downside capture40.8%19.0%100.0%ZSEPShare of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.390.201.00ZSEP lowerHow far it moves for each 1% its benchmark moves.
R squared0.920.871.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.770.55SEPWReturn above Treasury bills per unit of volatility.
Sortino1.140.83SEPWReturn above Treasury bills per unit of downside deviation.
Treynor0.1170.0870.121SEPWReturn above Treasury bills per unit of beta.
Calmar1.181.59ZSEPAnnualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYSPYSPYThe ETF each fund is measured against.
Alpha−0.1% a year−0.7% a year0.0%Not significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat−0.13−0.86Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−2.4% to +2.1%−2.2% to +0.9%Both include zeroThe 95% range for the yearly alpha.
Information ratio−0.83−0.88SEPW (slight)Return against its benchmark per unit of tracking error.
Tracking error9.0%11.8%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, 111 weekly returns. Cash rate: the 13-week Treasury bill.

Window by window

Window by window: SEPW vs ZSEP: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowSEPWZSEPSEPWZSEP
3 months+1.0%+1.0%+1.4 pts+1.4 pts
6 months+3.4%+2.5%−1.0 pts−2.0 pts
1 year+8.1%+5.5%−5.4 pts−8.1 pts
3 years+37.7%–−38.7 pts–
Since launchNot the same days: SEPW Sep 2023 · ZSEP Sep 2024+35.9%+14.1%−34.1 pts−24.8 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

SEPW AllianzIM U.S. Equity Buffer20 ETF - Sep · Absorbs the first 20% of loss on SPY and caps the gain at 12.3%, over a period ending Aug 31, 2027 ZSEP Innovator Equity Defined Protection ETF - 1 Yr September · Absorbs the whole loss on SPY and caps the gain at 8.9%, over a period ending Aug 31, 2027
Reference index SPY SPY
Buffer 20% 100%
Outcome period Sep 1, 2026 to Aug 31, 2027 Aug 31, 2026 to Aug 31, 2027
Days left 300 300
Starting cap +12.3% +8.9%
Can still gain 10.9% 8.1%
Fall before buffer 1.4% 0.8%
Protection left, index points 20.0% of 20.0% 99.9% of 100.0%
Index return this period 0.0% −0.1%
Fund return this period +0.6% +0.6%
State today Buffer working Buffer working
Expense ratio 0.74% 0.79%
Net assets, SEPW as of Nov 3, 2026 and ZSEP as of Nov 4, 2026 $211m $263m

As of Nov 4, 2026. Source: ETFIQ.

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

Where each one stands today

SEPW resets first, on Aug 31, 2027, 300 days from now; ZSEP runs to Aug 31, 2027, 300 days. SEPW can still gain 10.9% before its cap, ZSEP 8.1%. A fall from here reaches SEPW’s buffer after 1.4% and ZSEP’s after 0.8%. Both track SPY, so what separates them is where each is in its own period.

Client brief:

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About each fund
SEPW

From its price on Nov 4, 2026, the fund can gain about 10.9% more before it reaches its cap. The fund's price can fall 1.4% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.0% 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. 300 days remained on Nov 4, 2026. On Aug 31, 2027 the period ends and a new cap is set.

ZSEP

From its price on Nov 4, 2026, the fund can gain about 8.1% more before it reaches its cap. The fund's price can fall 0.8% from here before the buffer starts absorbing losses, by the issuer's number. Protection left, in index points: 99.9% of the 100.0% buffer still sits below today's SPY level.

Questions people ask

Which has more room to gain, SEPW or ZSEP?
From their prices on Nov 4, 2026, SEPW can gain about 10.9% before its cap and ZSEP about 8.1%, so SEPW has more room left this period.
Which resets first, SEPW or ZSEP?
SEPW ends its outcome period on Aug 31, 2027 and ZSEP on Aug 31, 2027. A new cap is set the day after each.
Which is cheaper, SEPW or ZSEP?
SEPW charges 0.74% a year and ZSEP charges 0.79%, so SEPW is cheaper. Fees come from each fund's prospectus.
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Sources and dates

Links are sources, not endorsements. A comparison is not a recommendation.

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, SEPW against ZSEP, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/sepw-vs-zsep

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.