CPSD vs JANU: which one stands where?

As of Oct 1, 2026 JANU can fall 8.3% before its buffer engages and CPSD 5.0%, and CPSD resets 31 days sooner. Calamos S&P 500 ® Structured Alt Protection ETF - December and AllianzIM U.S. Equity Buffer15 Uncapped ETF - Jan.

CPSDAt its cap
At its capCPSD: reference +12.1% since period start, fund +4.7%; buffer −1 to floor; cap +6.1%; At its cap.full floor beneathfull floor−0.5% buffer start0% period start+6.1% capTODAY · SPY +12.1%At its capCPSD: reference +12.1% since period start, fund +4.7%; buffer −1 to floor; cap +6.1%; At its cap.full floor beneathfull floor−0.5% buffer start0% start+6.1% capTODAY · SPY +12.1%

CPSD: reference +12.1% since period start, fund +4.7%; buffer −1 to floor; cap +6.1%; At its cap.

JANUNo cap
No capJANU: reference +11.8% since period start, fund +8.2%; buffer 0 to −15; no cap; No cap.15 pts−15.0% floor0% period startno capTODAY · SPY +11.8%No capJANU: reference +11.8% since period start, fund +8.2%; buffer 0 to −15; no cap; No cap.−15.0% floor0% startno capTODAY · SPY +11.8%

JANU: reference +11.8% since period start, fund +8.2%; buffer 0 to −15; no cap; No cap.

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

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

They do not reset together. CPSD has 61 days of its period left and JANU has 92, so the two are not the same bet on the same months.

Where each one stands today

CPSD resets first, on Dec 1, 2026, 61 days from now; JANU runs to Dec 31, 2026, 92 days. A fall from here reaches CPSD’s buffer after 5.0% and JANU’s after 8.3%. 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

Total returnGap to the reference
WindowCPSDJANUCPSDJANU
3 months+1.6%+1.4%−0.9 pts−1.1 pts
6 months+4.5%+11.0%−12.5 pts−5.9 pts
1 year+6.3%+10.2%−9.4 pts−5.5 pts

CPSD and JANU over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

CPSD
Calamos S&P 500 ® Structured Alt Protection ETF - December · Absorbs losses from 0.5% to 100.0% on SPY and caps the gain at 6.1%, over a period ending Dec 1, 2026
JANU
AllianzIM U.S. Equity Buffer15 Uncapped ETF - Jan · Absorbs the first 15% of loss on SPY and does not cap the gain, over a period ending Dec 31, 2026
Issuer Calamos AllianzIM
Reference index SPY SPY
Buffer 1% to 100% 15%
Outcome period Dec 1, 2025 to Dec 1, 2026 Jan 1, 2026 to Dec 31, 2026
Days left 61 92
Starting cap +6.1% uncapped
Can still gain not published uncapped
Fall before buffer 5.0% 8.3%
Protection left, index points 99.5% of 99.5% 15.0% of 15.0%
Index return this period +12.1% +11.8%
Fund return this period +4.7% +8.2%
State today At cap Uncapped
Expense ratio 0.69% 0.74%
Net assets $46m $78m

CPSD and JANU on the same fields, as of Oct 1, 2026. Source: ETFIQ.

CPSD in plain words

SPY had already risen past this fund's cap of +6.1% for the period on Oct 1, 2026, so in index terms there is no more upside to collect. The fund's price can fall 5.0% 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: 99.5% of the 99.5% buffer still sits below today's SPY level. 61 days remained on Oct 1, 2026. On Dec 1, 2026 the period ends and a new cap is set.

JANU in plain words

This fund has no cap. It takes a share of any further rise in SPY. The fund's price can fall 8.3% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 10.6% 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. 92 days remained on Oct 1, 2026. On Dec 31, 2026 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSD or JANU?
CPSD ends its outcome period on Dec 1, 2026 and JANU on Dec 31, 2026. A new cap is set the day after each.
Which is cheaper, CPSD or JANU?
CPSD charges 0.69% a year and JANU charges 0.74%, so CPSD is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, CPSD against JANU, data as of Oct 1, 2026. https://etfiq.com/compare/buffer/cpsd-vs-janu

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.