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CPRO Calamos Russell 2000 ® Structured Alt Protection ETF - October

Absorbs losses from 0.6% to 100.0% on IWM and caps the gain at 7.2%, over a period ending Oct 1, 2026

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

Calamos · Buffer ETFs · data as of

Key facts

not publishedPast the cap, price drift left
7.0%Fall before the buffer
99.4%Protection left, index points
19Days to reset

Method

24th of 380 buffer ETFs by how soon they reset

CPROAt its cap
full floor beneath+7.2%full floor−0.6% buffer start0% period start+7.2% capTODAY · IWM +19.1%full floor beneathfull floor−0.6% buffer start0% start+7.2% capTODAY · IWM +19.1%

Method

In plain words

The fund's price can fall 7.0% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, IWM can fall 16.6% from today's level to the point where the buffer begins. Protection left, in index points: 99.4% of the 99.4% buffer still sits below today's IWM level. 19 days remained on Sep 12, 2026. On Oct 1, 2026 the period ends and a new cap is set.

CPRO (Calamos Russell 2000 ® Structured Alt Protection ETF - October), buffer ETFs fields as of Sep 12, 2026. Source: ETFIQ.
Reference indexIWM
Buffer1% to 100%
Outcome periodOct 1, 2025 to Oct 1, 2026
Starting cap+7.2%
IWM return since period start+19.1%
Fund return since period start+6.9%
Net assets (source, as filed for Apr 30, 2026)$31m
Band state today (ETFIQ)At cap
Can still gain (issuer, fund price)not published
Fall before buffer (issuer, fund price)7.0%
Fall to the buffer in index terms (ETFIQ)16.6%
Protection left in index points (ETFIQ)99.4% of 99.4%
Days left in period19
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 CPRO still gain?
Nothing more in index terms on Sep 12, 2026. IWM has already passed the cap of +7.2% for this period, which runs from Oct 1, 2025 to Oct 1, 2026.
How far can CPRO fall before the buffer helps?
7.0% in fund-price terms on Sep 12, 2026, by the issuer's figure. In index terms IWM can fall 16.6% from that level before the buffer begins. Losses until that point are the holder's.
How much of the CPRO buffer is left?
99.4% of the 99.4% buffer sat below the IWM level on Sep 12, 2026. That is an ETFIQ calculation in index points, on one definition for every issuer.
When does CPRO reset?
The outcome period ends on Oct 1, 2026, 19 days from the data on Sep 12, 2026. A new cap is set the next day and the buffer starts again.
What does CPRO 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.

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CPRO outcome band, ETFIQ

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

Where CPRO is written about

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

How these figures are computed · Standards and sources