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Data as of .

FSEP vs SIXO: which one stands where?

As of Sep 21, 2026 SIXO can fall 8.0% before its buffer engages and FSEP 1.6%, and SIXO resets 351 days sooner.

FT Vest U.S. Equity Buffer ETF - September and AllianzIM U.S. Equity Buffer10 ETF - Apr.

1.6%FSEP can fall this far before its buffer
8.0%SIXO can fall this far before its buffer
14.9%FSEP can still gain
0.1%SIXO can still gain

ETFIQ Downside Cover Score: FSEP scores higher

If the market falls into a bear market from here, how much does the buffer absorb?

FSEP 38.1SIXO 38.10.2, the lowest in this set99.8, the highest

A percentile among the 293 buffer ETFs with a live outcome period. It is a position in a set, not a rating, and neither end of it is a recommendation. All buffer ETFs ranked by it · How it is computed

FSEPBetween buffer and cap
10 pts of buffer+15.1% more to the cap−10.0% floor0% period start+16.7% capTODAY · SPY +1.6%10 pts+15.1% to cap−10.0% floor0% start+16.7% capTODAY · SPY +1.6%
SIXOAt its cap
10 pts of buffer+8.7% gain captured−10.0% floor0% period start+8.7% capTODAY · SPY +19.0%10 pts+8.7%−10.0% floor0% start+8.7% capTODAY · SPY +19.0%

They do not reset together. SIXO has 10 days of its period left and FSEP has 361, so the two are not the same bet on the same months.

Where each one stands today

SIXO resets first, on Sep 30, 2026, 10 days from now; FSEP runs to Sep 17, 2027, 361 days. FSEP can still gain 14.9% before its cap, SIXO 0.1%. A fall from here reaches FSEP’s buffer after 1.6% and SIXO’s after 8.0%. 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

FSEP and SIXO over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ.
WindowTotal returnGap to the reference
FSEPSIXOFSEPSIXO
3 months+3.9%+2.1%+1.6 pts−0.1 pts
6 months+13.9%+8.0%−4.1 pts−10.0 pts
1 year+13.4%+8.0%−3.1 pts−8.6 pts
3 years+50.4%+30.1%−28.0 pts−48.3 pts
Open the live comparison on ETFIQ
FSEP and SIXO on the same fields, as of Sep 21, 2026. Source: ETFIQ.
FSEP
FT Vest U.S. Equity Buffer ETF - September
Absorbs the first 10% of loss on SPY and caps the gain at 16.7%, 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 8.7%, over a period ending Sep 30, 2026
IssuerFirst TrustAllianzIM
Reference indexSPYSPY
Buffer10%10%
Outcome periodSep 21, 2026 to Sep 17, 2027Apr 1, 2026 to Sep 30, 2026
Days left36110
Starting cap+16.7%+8.7%
Can still gain14.9%0.1%
Fall before buffer1.6%8.0%
Protection left, index points10.0% of 10.0%10.0% of 10.0%
Index return this period+1.6%+19.0%
Fund return this period+0.8%+8.2%
State todayOpenAt cap
Expense ratio0.85%0.74%
Net assets$2.3bn$119m

FSEP in plain words

From its price on Sep 21, 2026, the fund can gain about 14.9% more before it reaches its cap. The fund's price can fall 1.6% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 1.6% 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. 361 days remained on Sep 21, 2026. On Sep 17, 2027 the period ends and a new cap is set.

SIXO in plain words

SPY had already risen past this fund's cap of +8.7% for the period on Sep 21, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 0.1% as the period runs out. The fund's price can fall 8.0% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 16.0% from today's level to the point where the buffer begins. 10 days remained on Sep 21, 2026. On Sep 30, 2026 the period ends and a new cap is set.

Questions people ask

Which has more room to gain, FSEP or SIXO?
From their prices on Sep 21, 2026, FSEP can gain about 14.9% before its cap and SIXO about 0.1%, so FSEP has more room left this period.
Which resets first, FSEP or SIXO?
FSEP ends its outcome period on Sep 17, 2027 and SIXO on Sep 30, 2026. A new cap is set the day after each.
Which is cheaper, FSEP or SIXO?
FSEP charges 0.85% a year and SIXO charges 0.74%, so SIXO is cheaper. Fees come from each fund's prospectus.

Other comparisons

Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

FSEP against SIXO, ETFIQ, data as of Sep 21, 2026. Every figure is calculated from a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, FSEP against SIXO, data as of Sep 21, 2026. https://etfiq.com/compare/buffer/fsep-vs-sixo Free to use with attribution; the underlying files are at Open data.

How every figure is computed · Standards and sources