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Calamos Nasdaq-100 Structured Alt Protection ETF – September

CPNSNYSE ArcaA

$28.61−0.01 (−0.03%)

As of Oct 13, 2026, 3:59 PM

Intraday session: down, 36 prints from 28.62 to 28.61. Range 28.61 to 28.67. Use the arrow keys to read each point.28.6328.6428.6528.6628.6710 AM12 PM2 PM4 PM
Expense ratio
0.69%
Fund size
$28M
1Y total return
+6.2%
Yield · Last 12 months
—
Holdings
3
Avg volume · 30D
0M sh
NAV per share
$28.71
52W range
low $26.92high $28.89
Launched

The ETF.net CPNS Grade

Based on 5 of 6 pillars

A

Score 75 out of 100

Rank
2 of 24
Six-pillar profile for CPNS. Scores out of 100: Cost 78, Risk 79, Mission 91, Tradability 70, Holdings not scored, Durability 60. Strongest: Mission (91). Weakest: Durability (60). Based on 5 of 6 pillars.

Score 75 of 100 falls in the A band. A is 70 or higher, B 55 to under 70, C 40 to under 55, D 25 to under 40, F under 25.

  • Cost

    The fund’s net expense ratio, ranked against its category.
    A78 out of 100
    Rank 2 of 24
  • Mission

    Whether the fund did what it promised, tested against its stated mandate.
    A91 out of 100
    Rank 1 of 3
  • Risk

    How the fund held up when markets fell: downside volatility, drawdowns and tail loss.
    A79 out of 100
    Rank 5 of 24
  • Tradability

    How easy the fund is to trade: daily volume, and how far its price strays from net asset value.
    A70 out of 100
    Rank 4 of 24
  • Holdings

    How concentrated the fund is, and how complete and current its disclosed holdings are.
    Not scored
  • Durability

    Whether the fund is likely to stay open, judged by its age, its assets and its issuer’s assets.
    B60 out of 100
    Rank 10 of 24

Our read on CPNS

ETF.net Research

AArmor, not a cushion. CPNS uses options on the Nasdaq-100 to target 100% protection from losses over a one-year outcome period, before fees, and pays for that shield with a hard cap on the upside that resets every September.

Stated mandate

Seeks to provide positive price-return participation in the Nasdaq-100 up to a predetermined cap while protecting 100% of losses over the one-year outcome period, before fees and expenses.

Why people hold it

  1. 01The whole design in one line: participate in Nasdaq-100 price gains up to a preset cap while aiming to protect 100% of losses over the one-year outcome period, before fees and expenses.calamos.com
  2. 02Fee is 0.69% a year, below the median for Nasdaq-100 buffer and protection funds. In a strategy where the option budget sets your cap, a lower fee leaves more to spend on upside.
  3. 03September is one vintage in a quarterly series (CPNM March, CPNJ June), so investors can stagger entry points instead of betting everything on one reset date.
  4. 04Among the dozen-odd Nasdaq-100 protection and buffer funds we track, this one sits in the upper tier on cost and risk build quality.

Worth knowing

  1. 01The cap is the price of the armor. It is set at the start of each outcome period and changes with market conditions, and the stated outcomes assume holding from one reset date to the next.
  2. 02It tracks Nasdaq-100 price return, so index dividends are not part of the deal, and the fund has not been a distribution payer.
  3. 03A small, thinly traded fund since its 2024 launch, so bid-ask spreads and order size deserve attention at the point of trade.

CPNS Holdings

As of Oct 12, 2026
Asset class
Stocks
Holdings
3
Top-10 weight
109%
Largest holding
INVESCO QQQ TRUST SERIES 1 (QQQ) Long Call Option102.7%
The fund’s holdings, weight-ordered — page 1 of 1.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001—INVESCO QQQ TRUST SERIES 1 (QQQ) Long Call Option102.71%386$29M4
002—INVESCO QQQ TRUST SERIES 1 (QQQ) Long Put Option5.16%386$1M4
003—Us Dollar0.76%213,435$213K235

Showing 1–3 of 3 holdings

CPNS Performance

Launched Sep 3, 2024

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

Not enough history yet.Not enough history yet.Not enough history yet.
CPNS$10,624
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$12,044
Oct 10, 2025 to Oct 12, 2026. CPNS $10,624. SPY $12,044. Use the arrow keys to read each point.$9,582$10,912$12,243Oct 2025Apr 2026Oct 2026

Oct 10, 2025 – Oct 12, 2026

Returns run to the Oct 12, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for CPNS. Periods over one year show the average yearly return.
PeriodCPNS
Year to date+5.1%
1 month+1.0%
3 months+1.6%
1 year+6.2%
3 yearsFund is under 3 years oldper year—
5 yearsFund is under 5 years oldper year—
10 yearsFund is under 10 years oldper year—

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for CPNS
YearReturn barCPNS
2026 YTD+5.1%
2025+7.2%
2024+2.8%

Since listing, Sep 3, 2024

CPNS in the news

Filtered to CPNS · Calamos

CPNS Dividends

This fund pays no distributions.
—Last 12 months
Payout per share
—Last 12 months

No distributions in the last 12 months.

CPNS Risk

How much the fund’s monthly returns vary, scaled to a year.
2.8%
Annualised · 24 months to Sep 2026
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
0.91
vs 3-month T-bills · 24 months to Sep 2026
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
−4.0%
25 months · trough Apr 2025
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
0.21
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

CPNS Cost

Expense ratio0.69%
  • The middle half of Other Floor Protected funds
  • Median 0.79%

1 of the 18 Other Floor Protected funds charge less.

CPNS costs $69.00 a year on $10,000. The median Other Floor Protected fund costs $79.50.

Other funds in Other Floor Protected