Data as of Nov 4, 2026.

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Buffer ETFs

GDEC vs ZJAN: Cap, Buffer & Days Left

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As of Nov 4, 2026 GDEC can fall 9.2% before its buffer engages and ZJAN 5.0%, and GDEC resets 13 days sooner.

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Net assets: $426m on Nov 3, 2026 for FT Vest U.S. Equity Moderate Buffer ETF - December, and $106m on Nov 4, 2026 for Innovator Equity Defined Protection ETF - 1 Yr January.

At a glance
9.2%
GDEC can fall this far before its buffer
5.0%
ZJAN can fall this far before its buffer
1.8%
GDEC can still gain
1.2%
ZJAN can still gain
GDEC At its cap
At its capGDEC: reference +12.7% since period start, fund +9.2%; buffer 0 to −15; cap +12.1%; At its cap. Data to Nov 4, 2026.15 pts of buffer+12.1% gain captured−15.0% floor0% period start+12.1% capTODAY · SPY +12.7%At its capGDEC: reference +12.7% since period start, fund +9.2%; buffer 0 to −15; cap +12.1%; At its cap. Data to Nov 4, 2026.15 pts+12.1%−15.0% floor0% start+12.1% capTODAY · SPY +12.7%

GDEC: reference +12.7% since period start, fund +9.2%; buffer 0 to −15; cap +12.1%; At its cap. Data to Nov 4, 2026.

GDEC: reference +12.7% since period start, fund +9.2%; buffer 0 to −15; cap +12.1%; At its cap. Data to Nov 4, 2026.
ZJAN At its cap
At its capZJAN: reference +12.4% since period start, fund +4.6%; buffer Floor; cap +6.5%; At its cap. Data to Nov 4, 2026.full floor beneath+6.5%full floor0% period start+6.5% capTODAY · SPY +12.4%At its capZJAN: reference +12.4% since period start, fund +4.6%; buffer Floor; cap +6.5%; At its cap. Data to Nov 4, 2026.full floor beneathfull floor0% start+6.5% cap+6.5% gain capturedTODAY · SPY +12.4%

ZJAN: reference +12.4% since period start, fund +4.6%; buffer Floor; cap +6.5%; At its cap. Data to Nov 4, 2026.

Data to Nov 4, 2026.

Pair scorecard

ZJAN costs 0.06 points a year less; their one-year returns differ by 5.6 points; GDEC is 4.0 times larger.

Points (pts) are percentage points.

GDEC vs ZJAN: Cap, Buffer & Days Left
MeasureGDECZJAN
Return
Total return, 1 year+11.4%+5.8%
Drawdown
Index fall to the buffer11.2%11.0%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.85%0.79%
Net assets, as of Nov 3, 2026$426m$106m
Holdings
Holdings in commonnot published

Method

Risk and return

Jan 10, 2025 to Oct 30, 2026 · 94 weekly returns · each against SPY
GDEC ZJAN
Return
Total return edge GDEC +21.8% +11.3%
Annualized edge GDEC +11.5% +6.1%
Price return edge GDEC +21.8% +11.3%
Risk
Volatility edge ZJAN 7.8% 2.7%
Max drawdown edge ZJAN −9.5% −3.0%
Downside capture 51.1% 16.1%
Beta 0.50 0.17
Risk-adjusted
Sharpe edge GDEC 0.93 0.73
Sortino edge GDEC 1.37 1.13
Treynor 0.144 0.116
Calmar edge ZJAN 1.21 2.03
Against the benchmark
Alpha +0.8% a year −0.2% a year
Alpha t-stat 0.59 −0.32
Information ratio −0.73 −0.86
Tracking error 7.7% 12.6%
Reading

From Jan 2025 to Oct 2026, GDEC returned more: +21.8% to +11.3%. ZJAN swung less: 2.7% to 7.8%. ZJAN fell less at its worst: −3.0% to −9.5%.

Full scorecard

19 measures, with how each is measured
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Risk and return: GDEC vs ZJAN: Cap, Buffer & Days Left
MeasureGDECZJANSPYEdgeHow it is measured
Return
Total return+21.8%+11.3%GDECPrice change plus distributions, reinvested.
Annualized+11.5%+6.1%GDECTotal return as a yearly rate.
Price return+21.8%+11.3%GDECPrice change alone, distributions left out.
Risk
Volatility7.8%2.7%ZJANSpread of weekly returns, annualized. Lower is steadier.
Downside deviation5.3%1.7%ZJANLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−9.5%−3.0%ZJANDeepest fall from a high to the low after it.
Upside capture40.4%13.9%100.0%GDECShare of its benchmark's rise caught in the weeks it rose.
Downside capture51.1%16.1%100.0%ZJANShare of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.500.171.00ZJAN lowerHow far it moves for each 1% its benchmark moves.
R squared0.950.901.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.930.73GDECReturn above Treasury bills per unit of volatility.
Sortino1.371.13GDECReturn above Treasury bills per unit of downside deviation.
Treynor0.1440.1160.128GDECReturn above Treasury bills per unit of beta.
Calmar1.212.03ZJANAnnualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYSPYSPYThe ETF each fund is measured against.
Alpha+0.8% a year−0.2% a year0.0%Not significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat0.59−0.32Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−1.8% to +3.4%−1.4% to +1.0%Both include zeroThe 95% range for the yearly alpha.
Information ratio−0.73−0.86GDECReturn against its benchmark per unit of tracking error.
Tracking error7.7%12.6%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, 94 weekly returns. Cash rate: the 13-week Treasury bill.

Window by window

Window by window: GDEC vs ZJAN: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowGDECZJANGDECZJAN
3 months+1.7%+1.2%+2.1 pts+1.6 pts
6 months+4.7%+2.6%+0.2 pts−1.9 pts
1 year+11.4%+5.8%−2.2 pts−7.8 pts
Since launchNot the same days: GDEC Dec 2023 · ZJAN Jan 2025+36.7%+11.6%−25.8 pts−19.6 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

GDEC FT Vest U.S. Equity Moderate Buffer ETF - December · Absorbs the first 15% of loss on SPY and caps the gain at 12.1%, over a period ending Dec 18, 2026 ZJAN Innovator Equity Defined Protection ETF - 1 Yr January · Absorbs the whole loss on SPY and caps the gain at 6.5%, over a period ending Dec 31, 2026
Reference index SPY SPY
Buffer 15% 100%
Outcome period Dec 22, 2025 to Dec 18, 2026 Dec 31, 2025 to Dec 31, 2026
Days left 44 57
Starting cap +12.1% +6.5%
Can still gain 1.8% 1.2%
Fall before buffer 9.2% 5.0%
Protection left, index points 15.0% of 15.0% 100.0% of 100.0%
Index return this period +12.7% +12.4%
Fund return this period +9.2% +4.6%
State today At cap At cap
Expense ratio 0.85% 0.79%
Net assets, GDEC as of Nov 3, 2026 and ZJAN as of Nov 4, 2026 $426m $106m

As of Nov 4, 2026. Source: ETFIQ.

These are two different products. ZJAN is a floor fund, which caps how far a holder can fall. GDEC 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

GDEC resets first, on Dec 18, 2026, 44 days from now; ZJAN runs to Dec 31, 2026, 57 days. GDEC can still gain 1.8% before its cap, ZJAN 1.2%. A fall from here reaches GDEC’s buffer after 9.2% and ZJAN’s after 5.0%. Both track SPY, so what separates them is where each is in its own period.

Client brief:

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About each fund
GDEC

SPY had already risen past this fund's cap of +12.1% 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 1.8% 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 11.2% 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. 44 days remained on Nov 4, 2026. On Dec 18, 2026 the period ends and a new cap is set.

ZJAN

SPY had already risen past this fund's cap of +6.5% 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 1.2% as the period runs out. The fund's price can fall 5.0% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 11.0% 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. 57 days remained on Nov 4, 2026. On Dec 31, 2026 the period ends and a new cap is set.

Questions people ask

Which has more room to gain, GDEC or ZJAN?
From their prices on Nov 4, 2026, GDEC can gain about 1.8% before its cap and ZJAN about 1.2%, so GDEC has more room left this period.
Which resets first, GDEC or ZJAN?
GDEC ends its outcome period on Dec 18, 2026 and ZJAN on Dec 31, 2026. A new cap is set the day after each.
Which is cheaper, GDEC or ZJAN?
GDEC charges 0.85% a year and ZJAN charges 0.79%, so ZJAN 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, GDEC against ZJAN, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/gdec-vs-zjan

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