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Data as of .

CPSR vs MRCP: which one stands where?

As of Sep 21, 2026 MRCP can fall 8.2% before its buffer engages and CPSR 3.2%, and CPSR resets 2 days sooner.

Calamos S&P 500 ® Structured Alt Protection ETF - March and PGIM S&P 500 Buffer 12 ETF - March.

CPSRAt its cap
full floor beneathfull floor−0.3% buffer start0% period start+5.8% capTODAY · SPY +11.0%full floor beneathfull floor−0.3% buffer start0% start+5.8% capTODAY · SPY +11.0%
MRCPBetween buffer and cap
12 pts+12.8%−12.0% floor0% period start+14.5% capTODAY · SPY +12.8%−12.0% floor0% start+14.5% capTODAY · SPY +12.8%

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

Where each one stands today

CPSR resets first, on Feb 26, 2027, 158 days from now; MRCP runs to Feb 28, 2027, 160 days. A fall from here reaches CPSR’s buffer after 3.2% and MRCP’s after 8.2%. 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

CPSR and MRCP over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ.
WindowTotal returnGap to the reference
CPSRMRCPCPSRMRCP
3 months+1.4%+2.5%−0.9 pts+0.2 pts
6 months+3.7%+11.4%−14.3 pts−6.6 pts
1 year+5.7%+13.2%−10.9 pts−3.4 pts
3 years+300.8%not published+226.2 ptsnot published
Open the live comparison on ETFIQ
CPSR and MRCP on the same fields, as of Sep 21, 2026. Source: ETFIQ.
CPSR
Calamos S&P 500 ® Structured Alt Protection ETF - March
Absorbs losses from 0.3% to 100.0% on SPY and caps the gain at 5.8%, over a period ending Feb 26, 2027
MRCP
PGIM S&P 500 Buffer 12 ETF - March
Absorbs the first 12% of loss on SPY and caps the gain at 14.5%, over a period ending Feb 28, 2027
IssuerCalamosPGIM
Reference indexSPYSPY
Buffer0% to 100%12%
Outcome periodMar 2, 2026 to Feb 26, 2027Mar 1, 2026 to Feb 28, 2027
Days left158160
Starting cap+5.8%+14.5%
Can still gainnot published5.2%
Fall before buffer3.2%8.2%
Protection left, index points99.7% of 99.7%12.0% of 12.0%
Index return this period+11.0%+12.8%
Fund return this period+3.0%+8.4%
State todayAt capOpen
Expense ratio0.69%0.50%
Net assets$34m$29m

CPSR in plain words

SPY had already risen past this fund's cap of +5.8% for the period on Sep 21, 2026, so in index terms there is no more upside to collect. The fund's price can fall 3.2% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 10.2% from today's level to the point where the buffer begins. Protection left, in index points: 99.7% of the 99.7% buffer still sits below today's SPY level. 158 days remained on Sep 21, 2026. On Feb 26, 2027 the period ends and a new cap is set.

MRCP in plain words

From its price on Sep 21, 2026, the fund can gain about 5.2% more before it reaches its cap. The fund's price can fall 8.2% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 11.3% from today's level to the point where the buffer begins. Protection left, in index points: 12.0% of the 12.0% buffer still sits below today's SPY level. 160 days remained on Sep 21, 2026. On Feb 28, 2027 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSR or MRCP?
CPSR ends its outcome period on Feb 26, 2027 and MRCP on Feb 28, 2027. A new cap is set the day after each.
Which is cheaper, CPSR or MRCP?
CPSR charges 0.69% a year and MRCP charges 0.50%, so MRCP 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.

CPSR against MRCP, 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, CPSR against MRCP, data as of Sep 21, 2026. https://etfiq.com/compare/buffer/cpsr-vs-mrcp Free to use with attribution; the underlying files are at Open data.

How every figure is computed · Standards and sources