Data as of Nov 4, 2026.

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Buffer ETFs

BSEP vs ZSEP: Cap, Buffer & Days Left

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As of Nov 4, 2026 ZSEP can fall 0.8% before its buffer engages and BSEP 0.6%.

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Net assets on Nov 4, 2026: $462m for Innovator U.S. Equity Buffer ETF - Sep and $263m for Innovator Equity Defined Protection ETF - 1 Yr September.

At a glance
0.6%
BSEP can fall this far before its buffer
0.8%
ZSEP can fall this far before its buffer
19.0%
BSEP can still gain
8.1%
ZSEP can still gain
BSEP Buffer working
Buffer workingBSEP: reference −0.1% since period start, fund +0.5%; buffer 0 to −9; cap +19.8%; Buffer working. Data to Nov 4, 2026.8.9 pts+19.8% more to the cap−9.0% floor0% period start+19.8% capTODAY · SPY −0.1%Buffer workingBSEP: reference −0.1% since period start, fund +0.5%; buffer 0 to −9; cap +19.8%; Buffer working. Data to Nov 4, 2026.−9.0% floor0% start+19.8% cap8.9 of 9 pts of buffer left+19.8% more to the capTODAY · SPY −0.1%

BSEP: reference −0.1% since period start, fund +0.5%; buffer 0 to −9; cap +19.8%; Buffer working. Data to Nov 4, 2026.

BSEP: reference −0.1% since period start, fund +0.5%; buffer 0 to −9; cap +19.8%; 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

Both cost 0.79% a year; their one-year returns differ by 6.6 points; BSEP is 1.8 times larger.

Points (pts) are percentage points.

BSEP vs ZSEP: Cap, Buffer & Days Left
MeasureBSEPZSEP
Return
Total return, 1 year+12.1%+5.5%
Drawdown
Index fall to the buffer0.0%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.79%0.79%
Net assets$462m$263m
Holdings
Holdings in commonnot published

Method

Risk and return

Sep 13, 2024 to Oct 30, 2026 · 111 weekly returns · each against SPY
BSEP ZSEP
Return
Total return edge BSEP +29.5% +13.0%
Annualized edge BSEP +12.9% +5.9%
Price return edge BSEP +29.5% +13.0%
Risk
Volatility edge ZSEP 9.6% 3.1%
Max drawdown edge ZSEP −11.8% −3.7%
Downside capture 66.3% 19.0%
Beta 0.64 0.20
Risk-adjusted
Sharpe edge BSEP 0.89 0.55
Sortino edge BSEP 1.33 0.83
Treynor 0.133 0.087
Calmar edge ZSEP 1.09 1.59
Against the benchmark
Alpha +0.8% a year −0.7% a year
Alpha t-stat 0.54 −0.86
Information ratio −0.64 −0.88
Tracking error 5.6% 11.8%
Reading

From Sep 2024 to Oct 2026, BSEP returned more: +29.5% to +13.0%. ZSEP swung less: 3.1% to 9.6%. ZSEP fell less at its worst: −3.7% to −11.8%.

Full scorecard

19 measures, with how each is measured
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Risk and return: BSEP vs ZSEP: Cap, Buffer & Days Left
MeasureBSEPZSEPSPYEdgeHow it is measured
Return
Total return+29.5%+13.0%BSEPPrice change plus distributions, reinvested.
Annualized+12.9%+5.9%BSEPTotal return as a yearly rate.
Price return+29.5%+13.0%BSEPPrice change alone, distributions left out.
Risk
Volatility9.6%3.1%ZSEPSpread of weekly returns, annualized. Lower is steadier.
Downside deviation6.4%2.1%ZSEPLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−11.8%−3.7%ZSEPDeepest fall from a high to the low after it.
Upside capture55.1%15.3%100.0%BSEPShare of its benchmark's rise caught in the weeks it rose.
Downside capture66.3%19.0%100.0%ZSEPShare of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.640.201.00ZSEP lowerHow far it moves for each 1% its benchmark moves.
R squared0.960.871.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.890.55BSEPReturn above Treasury bills per unit of volatility.
Sortino1.330.83BSEPReturn above Treasury bills per unit of downside deviation.
Treynor0.1330.0870.121BSEPReturn above Treasury bills per unit of beta.
Calmar1.091.59ZSEPAnnualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYSPYSPYThe ETF each fund is measured against.
Alpha+0.8% a year−0.7% a year0.0%Not significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat0.54−0.86Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−2.0% to +3.5%−2.2% to +0.9%Both include zeroThe 95% range for the yearly alpha.
Information ratio−0.64−0.88BSEPReturn against its benchmark per unit of tracking error.
Tracking error5.6%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: BSEP vs ZSEP: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowBSEPZSEPBSEPZSEP
3 months+1.3%+1.0%+1.7 pts+1.4 pts
6 months+5.0%+2.5%+0.5 pts−2.0 pts
1 year+12.1%+5.5%−1.5 pts−8.1 pts
3 years+59.6%–−16.8 pts–
Since launchNot the same days: BSEP Sep 2019 · ZSEP Sep 2024+125.0%+14.1%−38.7 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

BSEP Innovator U.S. Equity Buffer ETF - Sep · Absorbs the first 9% of loss on SPY and caps the gain at 19.8%, 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 9% 100%
Outcome period Aug 31, 2026 to Aug 31, 2027 Aug 31, 2026 to Aug 31, 2027
Days left 300 300
Starting cap +19.8% +8.9%
Can still gain 19.0% 8.1%
Fall before buffer 0.6% 0.8%
Protection left, index points 8.9% of 9.0% 99.9% of 100.0%
Index return this period −0.1% −0.1%
Fund return this period +0.5% +0.6%
State today Buffer working Buffer working
Expense ratio 0.79% 0.79%
Net assets $462m $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. BSEP is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.

Both are Innovator funds, so the difference between them is the terms rather than the house.

Where each one stands today

BSEP resets first, on Aug 31, 2027, 300 days from now; ZSEP runs to Aug 31, 2027, 300 days. BSEP can still gain 19.0% before its cap, ZSEP 8.1%. A fall from here reaches BSEP’s buffer after 0.6% 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
BSEP

From its price on Nov 4, 2026, the fund can gain about 19.0% more before it reaches its cap. The fund's price can fall 0.6% 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: 8.9% of the 9.0% 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, BSEP or ZSEP?
From their prices on Nov 4, 2026, BSEP can gain about 19.0% before its cap and ZSEP about 8.1%, so BSEP has more room left this period.
Which resets first, BSEP or ZSEP?
BSEP 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, BSEP or ZSEP?
BSEP and ZSEP both charge 0.79% a year, so neither is cheaper. Fees come from each fund's prospectus.
Other comparisons
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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.

Cite this pageCitation, APA and Markdown

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

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