Data as of Nov 4, 2026.

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Buffer ETFs

CPSR vs DFEB: Cap, Buffer & Days Left

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As of Nov 4, 2026 DFEB can fall 12.2% before its buffer engages and CPSR 3.7%, and DFEB resets 7 days sooner.

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Net assets: $34m on Nov 4, 2026 for Calamos S&P 500 Structured Alt Protection ETF - March, and $456m on Nov 3, 2026 for FT Vest U.S. Equity Deep Buffer ETF - February.

At a glance
CPSR At its cap
At its capCPSR: reference +11.7% since period start, fund +3.4%; buffer Floor; cap +6.2%; At its cap. Data to Nov 4, 2026.full floor beneath+6.2%full floor0% period start+6.2% capTODAY · SPY +11.7%At its capCPSR: reference +11.7% since period start, fund +3.4%; buffer Floor; cap +6.2%; At its cap. Data to Nov 4, 2026.full floor beneathfull floor0% start+6.2% cap+6.2% gain capturedTODAY · SPY +11.7%

CPSR: reference +11.7% since period start, fund +3.4%; buffer Floor; cap +6.2%; At its cap. Data to Nov 4, 2026.

Data to Nov 4, 2026.
DFEB Between buffer and cap
Between buffer and capDFEB: reference +11.2% since period start, fund +7.2%; buffer −5 to −30; cap +11.9%; Between buffer and cap. Data to Nov 4, 2026.25 pts of buffer+11.2% gained−30.0% floor−5.0% buffer start0% period start+11.9% capfirst 5 pts are yours to lose+0.7% more to the capTODAY · SPY +11.2%Between buffer and capDFEB: reference +11.2% since period start, fund +7.2%; buffer −5 to −30; cap +11.9%; Between buffer and cap. Data to Nov 4, 2026.25 pts+11.2%−30.0% floor−5.0% buffer start0% start+11.9% capfirst 5 pts are yours to lose+0.7% more to the capTODAY · SPY +11.2%

DFEB: reference +11.2% since period start, fund +7.2%; buffer −5 to −30; cap +11.9%; Between buffer and cap. Data to Nov 4, 2026.

DFEB: reference +11.2% since period start, fund +7.2%; buffer −5 to −30; cap +11.9%; Between buffer and cap. Data to Nov 4, 2026.

Pair scorecard

CPSR costs 0.16 points a year less; their one-year returns differ by 5.4 points; DFEB is 13.4 times larger.

Points (pts) are percentage points.

CPSR vs DFEB: Cap, Buffer & Days Left
MeasureCPSRDFEB
Return
Total return, 1 year+5.7%+11.1%
Drawdown
Index fall to the buffer10.5%14.6%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.69%0.85%
Net assets, as of Nov 3, 2026$34m$456m
Holdings
Holdings in commonnot published

Method

Window by window

Window by window: CPSR vs DFEB: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowCPSRDFEBCPSRDFEB
3 months+1.1%+1.4%+1.4 pts+1.8 pts
6 months+2.2%+4.1%−2.3 pts−0.4 pts
1 year+5.7%+11.1%−7.9 pts−2.4 pts
3 years–+47.2%–−29.2 pts
Since launchNot the same days: CPSR Mar 2025 · DFEB Feb 2020+10.9%+71.4%−20.5 pts−66.4 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

CPSR Calamos S&P 500 Structured Alt Protection ETF - March · Absorbs the whole loss on SPY and caps the gain at 6.2%, over a period ending Feb 26, 2027 DFEB FT Vest U.S. Equity Deep Buffer ETF - February · Absorbs losses from 5.0% to 30.0% on SPY and caps the gain at 11.9%, over a period ending Feb 19, 2027
Reference index SPY SPY
Buffer 100% 5% to 30%
Outcome period Mar 2, 2026 to Feb 26, 2027 Feb 23, 2026 to Feb 19, 2027
Days left 114 107
Starting cap +6.2% +11.9%
Can still gain not published 3.6%
Fall before buffer 3.7% 12.2%
Protection left, index points 100.0% of 100.0% 25.0% of 25.0%
Index return this period +11.7% +11.2%
Fund return this period +3.4% +7.2%
State today At cap Open
Expense ratio 0.69% 0.85%
Net assets, CPSR as of Nov 4, 2026 and DFEB as of Nov 3, 2026 $34m $456m

As of Nov 4, 2026. Source: ETFIQ.

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

CPSR is already at its cap, so more rise in the index adds nothing to it before the period ends.

Where each one stands today

DFEB resets first, on Feb 19, 2027, 107 days from now; CPSR runs to Feb 26, 2027, 114 days. A fall from here reaches CPSR’s buffer after 3.7% and DFEB’s after 12.2%. Both track SPY, so what separates them is where each is in its own period.

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About each fund
CPSR

SPY had already risen past this fund's cap of +6.2% for the period on Nov 4, 2026, so in index terms there is no more upside to collect. The fund's price can fall 3.7% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 10.5% 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. 114 days remained on Nov 4, 2026. On Feb 26, 2027 the period ends and a new cap is set.

DFEB

From its price on Nov 4, 2026, the fund can gain about 3.6% more before it reaches its cap. The fund's price can fall 12.2% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 14.6% from today's level to the point where the buffer begins. Protection left, in index points: 25.0% of the 25.0% buffer still sits below today's SPY level. 107 days remained on Nov 4, 2026. On Feb 19, 2027 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSR or DFEB?
CPSR ends its outcome period on Feb 26, 2027 and DFEB on Feb 19, 2027. A new cap is set the day after each.
Which is cheaper, CPSR or DFEB?
CPSR charges 0.69% a year and DFEB charges 0.85%, so CPSR 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, CPSR against DFEB, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/cpsr-vs-dfeb

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