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CPSY Calamos S&P 500 ® Structured Alt Protection ETF - January

Absorbs losses from 0.5% to 100.0% on SPY and caps the gain at 5.9%, over a period ending Jan 1, 2027

As of Sep 12, 2026, CPSY has reached its cap.

Calamos · Buffer ETFs · data as of

Key facts

not publishedPast the cap, price drift left
4.1%Fall before the buffer
99.5%Protection left, index points
111Days to reset

Method

CPSYAt its cap
full floor beneath+5.9%full floor−0.5% buffer start0% period start+5.9% capTODAY · SPY +11.9%full floor beneathfull floor−0.5% buffer start0% start+5.9% capTODAY · SPY +11.9%

Method

In plain words

The fund's price can fall 4.1% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 11.0% 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. 111 days remained on Sep 12, 2026. On Jan 1, 2027 the period ends and a new cap is set.

CPSY (Calamos S&P 500 ® Structured Alt Protection ETF - January), buffer ETFs fields as of Sep 12, 2026. Source: ETFIQ.
Reference indexSPY
Buffer0% to 100%
Outcome periodJan 2, 2026 to Jan 1, 2027
Starting cap+5.9%
SPY return since period start+11.9%
Fund return since period start+3.8%
Net assets (source, as filed for Apr 30, 2026)$26m
Band state today (ETFIQ)At cap
Can still gain (issuer, fund price)not published
Fall before buffer (issuer, fund price)4.1%
Fall to the buffer in index terms (ETFIQ)11.0%
Protection left in index points (ETFIQ)99.5% of 99.5%
Days left in period111
Expense ratio (issuer page, Sep 12, 2026)0.69%

Issuer-published figures as of the date shown; ETFIQ calculations marked. Definitions on the learn page. How these figures are computed

Questions people ask

How much can CPSY still gain?
Nothing more in index terms on Sep 12, 2026. SPY has already passed the cap of +5.9% for this period, which runs from Jan 2, 2026 to Jan 1, 2027.
How far can CPSY fall before the buffer helps?
4.1% in fund-price terms on Sep 12, 2026, by the issuer's figure. In index terms SPY can fall 11.0% from that level before the buffer begins. Losses until that point are the holder's.
How much of the CPSY buffer is left?
99.5% of the 99.5% buffer sat below the SPY level on Sep 12, 2026. That is an ETFIQ calculation in index points, on one definition for every issuer.
When does CPSY reset?
The outcome period ends on Jan 1, 2027, 111 days from the data on Sep 12, 2026. A new cap is set the next day and the buffer starts again.
What does CPSY cost?
The prospectus expense ratio is 0.69% a year.

The words on this page

Buffer
The first slice of loss the fund absorbs for you over its outcome period, stated on the reference index. A 15% buffer means the index can fall 15% before you take any of it.
Cap
The most the fund can return over the period, however far the index rises. It is the price paid for the buffer.
Outcome period
The window the buffer and cap apply over, usually a year. Both are set at the start and only hold if you are there for the whole of it.
Reset
The day one outcome period ends and the next begins, with a fresh buffer and a fresh cap struck at that day’s level.
Protection left
The part of the buffer still below today’s index level. A buffer bought mid-period is not the full buffer; this is what is left of it.

Every term used here, defined in full on the buffer ETFs vocabulary page.

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.

Compare CPSY

Also against SPY, VOO.

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The outcome band for CPSY, redrawn every trading night. Free to use with the credit link.

CPSY outcome band, ETFIQ

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<p><a href="https://etfiq.com/funds/CPSY">CPSY outcome band, updated daily by ETFIQ</a></p>

Where CPSY is written about

CPSY, Buffer ETFs, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. ETFIQ is an independent publisher, is not a fund issuer, broker-dealer or investment adviser, and makes no recommendations.
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Open CPSY live on ETFIQ, where the figures refresh with the data.

Cite this page. ETFIQ, CPSY, buffer ETFs, data as of Sep 12, 2026. https://etfiq.com/funds/CPSY Free to use with attribution; the underlying files are at Open data.

How these figures are computed · Standards and sources