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Data as of .

CPSM vs MAYT: which one stands where?

As of Sep 21, 2026 MAYT can fall 6.2% before its buffer engages and CPSM 2.0%, and CPSM resets 1 days sooner.

Calamos S&P 500 ® Structured Alt Protection ETF - May and AllianzIM U.S. Equity Buffer10 ETF - May.

CPSMFull floor
full floor beneathfull floor−0.2% buffer start0% period start+6.5% capTODAY · SPY +5.7%full floor beneathfull floor−0.2% buffer start0% start+6.5% capTODAY · SPY +5.7%
MAYTBetween buffer and cap
10 pts+7.7%−10.0% floor0% period start+16.3% capTODAY · SPY +7.7%−10.0% floor0% start+16.3% capTODAY · SPY +7.7%

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

CPSM resets first, on Apr 30, 2027, 221 days from now; MAYT runs to Apr 30, 2027, 222 days. A fall from here reaches CPSM’s buffer after 2.0% and MAYT’s after 6.2%. 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

CPSM and MAYT over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ.
WindowTotal returnGap to the reference
CPSMMAYTCPSMMAYT
3 months+1.0%+2.2%−1.2 pts−0.1 pts
6 months+2.6%+8.5%−15.4 pts−9.6 pts
1 year+4.6%+10.5%−11.9 pts−6.0 pts
3 yearsnot published+50.7%not published−27.7 pts
Open the live comparison on ETFIQ
CPSM and MAYT on the same fields, as of Sep 21, 2026. Source: ETFIQ.
CPSM
Calamos S&P 500 ® Structured Alt Protection ETF - May
Absorbs losses from 0.2% to 100.0% on SPY and caps the gain at 6.5%, over a period ending Apr 30, 2027
MAYT
AllianzIM U.S. Equity Buffer10 ETF - May
Absorbs the first 10% of loss on SPY and caps the gain at 16.3%, over a period ending Apr 30, 2027
IssuerCalamosAllianzIM
Reference indexSPYSPY
Buffer0% to 100%10%
Outcome periodMay 1, 2026 to Apr 30, 2027May 1, 2026 to Apr 30, 2027
Days left221222
Starting cap+6.5%+16.3%
Can still gainnot published9.3%
Fall before buffer2.0%6.2%
Protection left, index points99.8% of 99.8%10.0% of 10.0%
Index return this period+5.7%+7.7%
Fund return this period+1.8%+5.8%
State todayOpenOpen
Expense ratio0.69%0.74%
Net assets$58m$238m

CPSM in plain words

The fund's price can fall 2.0% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 5.6% from today's level to the point where the buffer begins. Protection left, in index points: 99.8% of the 99.8% buffer still sits below today's SPY level. 221 days remained on Sep 21, 2026. On Apr 30, 2027 the period ends and a new cap is set.

MAYT in plain words

From its price on Sep 21, 2026, the fund can gain about 9.3% more before it reaches its cap. The fund's price can fall 6.2% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 7.1% 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. 222 days remained on Sep 21, 2026.

Questions people ask

Which resets first, CPSM or MAYT?
CPSM ends its outcome period on Apr 30, 2027 and MAYT on Apr 30, 2027. A new cap is set the day after each.
Which is cheaper, CPSM or MAYT?
CPSM charges 0.69% a year and MAYT charges 0.74%, so CPSM 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.

CPSM against MAYT, 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, CPSM against MAYT, data as of Sep 21, 2026. https://etfiq.com/compare/buffer/cpsm-vs-mayt Free to use with attribution; the underlying files are at Open data.

How every figure is computed · Standards and sources