Data as of Nov 4, 2026.

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Buffer ETFs

GSEP vs SIXO: Cap, Buffer & Days Left

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As of Nov 4, 2026 GSEP can fall 1.7% before its buffer engages and SIXO 1.0%, and SIXO resets 170 days sooner.

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Net assets on Nov 3, 2026: $366m for FT Vest U.S. Equity Moderate Buffer ETF - September and $119m for AllianzIM U.S. Equity Buffer10 ETF - Apr.

At a glance
1.7%
GSEP can fall this far before its buffer
1.0%
SIXO can fall this far before its buffer
12.3%
GSEP can still gain
6.7%
SIXO can still gain
GSEP Between buffer and cap
Between buffer and capGSEP: reference +0.7% since period start, fund +0.8%; buffer 0 to −15; cap +14.1%; Between buffer and cap. Data to Nov 4, 2026.15 pts of buffer+13.4% more to the cap−15.0% floor0% period start+14.1% cap+0.7% gain capturedTODAY · SPY +0.7%Between buffer and capGSEP: reference +0.7% since period start, fund +0.8%; buffer 0 to −15; cap +14.1%; Between buffer and cap. Data to Nov 4, 2026.15 pts+13.4% to cap−15.0% floor0% start+14.1% cap+0.7% gain capturedTODAY · SPY +0.7%

GSEP: reference +0.7% since period start, fund +0.8%; buffer 0 to −15; cap +14.1%; Between buffer and cap. Data to Nov 4, 2026.

GSEP: reference +0.7% since period start, fund +0.8%; buffer 0 to −15; cap +14.1%; Between buffer and cap. Data to Nov 4, 2026.
SIXO Between buffer and cap
Between buffer and capSIXO: reference +0.5% since period start, fund +0.6%; buffer 0 to −10; cap +7.7%; Between buffer and cap. Data to Nov 4, 2026.10 pts of buffer+7.2% to cap−10.0% floor0% period start+7.7% cap+0.5% gain capturedTODAY · SPY +0.5%Between buffer and capSIXO: reference +0.5% since period start, fund +0.6%; buffer 0 to −10; cap +7.7%; Between buffer and cap. Data to Nov 4, 2026.10 pts−10.0% floor0% start+7.7% cap+0.5% gain captured+7.2% more to the capTODAY · SPY +0.5%

SIXO: reference +0.5% since period start, fund +0.6%; buffer 0 to −10; cap +7.7%; Between buffer and cap. Data to Nov 4, 2026.

SIXO: reference +0.5% since period start, fund +0.6%; buffer 0 to −10; cap +7.7%; Between buffer and cap. Data to Nov 4, 2026.

Pair scorecard

SIXO costs 0.11 points a year less; their one-year returns differ by 3.1 points; GSEP is 3.1 times larger.

Points (pts) are percentage points.

GSEP vs SIXO: Cap, Buffer & Days Left
MeasureGSEPSIXO
Return
Total return, 1 year+10.9%+7.8%
Drawdown
Index fall to the buffer0.6%0.5%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.85%0.74%
Net assets, as of Nov 3, 2026$366m$119m
Holdings
Holdings in commonnot published
ETFIQ Downside Cover Score · GSEP scores higher If the market falls into a bear market from here, how much does the buffer absorb?
IQ Buffer Score91.3GSEP38.7SIXO

How much of a bear-market fall the buffer would absorb from today's level, ranked against 292 buffer ETFs on stocks with a live outcome period. 100 is best. How it is computed

0.3, the lowest in this set 99.7, the highest

Today's position against one 20% fall; it ignores smaller falls, and stock buffers are never ranked against bond or commodity ones. All buffer ETFs ranked by it →

Method

Risk and return

Sep 29, 2023 to Oct 30, 2026 · 161 weekly returns · each against SPY
GSEP SIXO
Return
Total return edge GSEP +42.1% +34.0%
Annualized edge GSEP +12.0% +9.9%
Price return edge GSEP +42.1% +34.0%
Risk
Volatility edge GSEP (slight) 6.6% 7.3%
Max drawdown edge GSEP −8.8% −10.6%
Downside capture 45.5% 51.0%
Beta 0.44 0.48
Risk-adjusted
Sharpe edge GSEP 1.08 0.72
Sortino edge GSEP 1.66 1.04
Treynor 0.162 0.109
Calmar edge GSEP 1.37 0.93
Against the benchmark
Alpha 0.0% a year −2.5% a year
Alpha t-stat 0.04 −1.72
Information ratio −1.09 −1.40
Tracking error 8.3% 7.8%
Reading

From Sep 2023 to Oct 2026, GSEP returned more: +42.1% to +34.0%. GSEP swung slightly less: 6.6% to 7.3%. GSEP fell less at its worst: −8.8% to −10.6%.

Full scorecard

19 measures, with how each is measured
Open ↓
Risk and return: GSEP vs SIXO: Cap, Buffer & Days Left
MeasureGSEPSIXOSPYEdgeHow it is measured
Return
Total return+42.1%+34.0%GSEPPrice change plus distributions, reinvested.
Annualized+12.0%+9.9%GSEPTotal return as a yearly rate.
Price return+42.1%+34.0%GSEPPrice change alone, distributions left out.
Risk
Volatility6.6%7.3%GSEP (slight)Spread of weekly returns, annualized. Lower is steadier.
Downside deviation4.3%5.0%GSEPLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−8.8%−10.6%GSEPDeepest fall from a high to the low after it.
Upside capture35.5%34.8%100.0%GSEP (slight)Share of its benchmark's rise caught in the weeks it rose.
Downside capture45.5%51.0%100.0%GSEPShare of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.440.481.00GSEP lowerHow far it moves for each 1% its benchmark moves.
R squared0.880.881.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe1.080.72GSEPReturn above Treasury bills per unit of volatility.
Sortino1.661.04GSEPReturn above Treasury bills per unit of downside deviation.
Treynor0.1620.1090.161GSEPReturn above Treasury bills per unit of beta.
Calmar1.370.93GSEPAnnualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYSPYSPYThe ETF each fund is measured against.
Alpha0.0% a year−2.5% a year0.0%Not significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat0.04−1.72Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−2.5% to +2.6%−5.4% to +0.4%Both include zeroThe 95% range for the yearly alpha.
Information ratio−1.09−1.40GSEPReturn against its benchmark per unit of tracking error.
Tracking error8.3%7.8%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, 161 weekly returns. Cash rate: the 13-week Treasury bill.

Window by window

Window by window: GSEP vs SIXO: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowGSEPSIXOGSEPSIXO
3 months+1.9%+1.4%+2.3 pts+1.8 pts
6 months+4.9%+3.9%+0.4 pts−0.6 pts
1 year+10.9%+7.8%−2.7 pts−5.8 pts
3 years+41.6%+33.1%−34.8 pts−43.3 pts
Since launchNot the same days: GSEP Sep 2023 · SIXO Oct 2021+40.3%+46.3%−32.6 pts−30.3 pts

Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. Open this comparison in the app →

Side by side

GSEP FT Vest U.S. Equity Moderate Buffer ETF - September · Absorbs the first 0% to 15% of loss on SPY and caps the gain at 14.1%, over a period ending Sep 17, 2027 SIXO AllianzIM U.S. Equity Buffer10 ETF - Apr · Absorbs the first 10% of loss on SPY and caps the gain at 7.7%, over a period ending Mar 31, 2027
Reference index SPY SPY
Buffer 0% to 15% 10%
Outcome period Sep 21, 2026 to Sep 17, 2027 Oct 1, 2026 to Mar 31, 2027
Days left 317 147
Starting cap +14.1% +7.7%
Can still gain 12.3% 6.7%
Fall before buffer 1.7% 1.0%
Protection left, index points 15.0% of 15.0% 10.0% of 10.0%
Index return this period +0.7% +0.5%
Fund return this period +0.8% +0.6%
State today Open Open
Expense ratio 0.85% 0.74%
Net assets, as of Nov 3, 2026 $366m $119m

As of Nov 4, 2026. Source: ETFIQ.

They do not reset together. SIXO has 147 days of its period left and GSEP has 317, so the two are not the same bet on the same months.

Where each one stands today

SIXO resets first, on Mar 31, 2027, 147 days from now; GSEP runs to Sep 17, 2027, 317 days. GSEP can still gain 12.3% before its cap, SIXO 6.7%. A fall from here reaches GSEP’s buffer after 1.7% and SIXO’s after 1.0%. Both track SPY, so what separates them is where each is in its own period.

Client brief:

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About each fund
GSEP

From its price on Nov 4, 2026, the fund can gain about 12.3% more before it reaches its cap. The fund's price can fall 1.7% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.6% from today's level to the point where the buffer begins. Protection left, in index points: 15.0% of the 15.0% buffer still sits below today's SPY level. 317 days remained on Nov 4, 2026. On Sep 17, 2027 the period ends and a new cap is set.

SIXO

From its price on Nov 4, 2026, the fund can gain about 6.7% more before it reaches its cap. The fund's price can fall 1.0% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.5% from today's level to the point where the buffer begins. Protection left, in index points: 10.0% of the 10.0% buffer still sits below today's SPY level. 147 days remained on Nov 4, 2026. On Mar 31, 2027 the period ends and a new cap is set.

Questions people ask

Which has more room to gain, GSEP or SIXO?
From their prices on Nov 4, 2026, GSEP can gain about 12.3% before its cap and SIXO about 6.7%, so GSEP has more room left this period.
Which resets first, GSEP or SIXO?
GSEP ends its outcome period on Sep 17, 2027 and SIXO on Mar 31, 2027. A new cap is set the day after each.
Which is cheaper, GSEP or SIXO?
GSEP charges 0.85% a year and SIXO charges 0.74%, so SIXO 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

It is a place in a set, not a rating or a recommendation.

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, GSEP against SIXO, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/gsep-vs-sixo

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