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CBOX

GradeCChicago Board Options Exchange

Calamos ETF Trust - Calamos Tax-Aware Collateral ETF

Treasury & Government Bond · Calamos · Inception 2026-04-17 · SEC filings

$101.69+0.00 (+0.00%)

As of Sep 23, 2026, 11:44 AM EDT

History starts Apr 17, 2026.History starts Apr 17, 2026.History starts Apr 17, 2026.
Intraday session: up, 4 prints from 101.69 to 101.69. Range 101.63 to 101.69. Use the arrow keys to read each point.$101.64$101.66$101.6810 AM12 PM2 PM4 PM
Expense ratio
0.19%
Fund size
$1.6B
1Y return
—
Yield · Last 12 months
—
Volume · 30D
0.1M sh
NAV per share
$101.67
52W range
low $100.01high $103.54

The ETF.net CBOX Grade

C

45/ 100

Rank 64 of 78 in Cash & Ultra-Short Income⁠

Confidence Medium

Six-pillar profile for CBOX. Scores out of 100: Cost 41, Risk 52, Mission not scored, Tradability 64, Holdings 24, Durability 43. Strongest: Tradability (64). Weakest: Holdings (24). Based on 5 of 6 pillars.
F< 25
D≥ 25
C≥ 40
B≥ 55
A≥ 70

Score 45 of 100 sits in the C band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E.

  • Cost

    What you pay to own it — the expense ratio plus trading frictions, ranked within its category.
    CScore 41
    Category rank39/78 · top 50%

  • Mission

    How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.
    Not scored
    —

  • Risk

    How violently it can move — volatility, drawdown depth, and downside capture versus its category.
    CScore 52
    Category rank34/75 · top 45%

  • Tradability

    How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.
    BScore 64
    Category rank25/78 · top 32%

  • Holdings

    What it actually owns — the quality, breadth, and concentration of the underlying portfolio.
    FScore 24
    Category rank75/77 · bottom quartile

  • Durability

    Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.
    CScore 43
    Category rank54/78 · mid-pack

Graded as of Sep 22, 2026 · Based on 5 of 6 pillars

CBOX Holdings

As of Sep 20, 2026, 9:03 AM
Asset class
Stocks
Holdings
—
Top-10 weight
100%
Largest holding
State Street SPDR S&P 500 ETF Trust99.8%
The fund’s holdings, weight-ordered — page 1 of 1.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001—State Street SPDR S&P 500 ETF Trust99.75%3,220$1.6B2
002—US DOLLAR0.25%4,068,810$4M231

Showing 1–2 of 2 holdings

CBOX Performance

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

CBOX$10,102
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$10,415
Jun 22, 2026 to Sep 22, 2026. CBOX $10,102. SPY $10,415. Use the arrow keys to read each point.$9,741$10,122$10,502Jun 2026Aug 2026Sep 2026

Jun 22, 2026 – Sep 22, 2026

Returns run to the Sep 22, 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 CBOX. Periods over one year show the average yearly return.
PeriodCBOX
Year to dateFund launched this year—
1 month+0.2%
3 months+1.0%
1 yearFund is under 1 year old—
3 yearsFund is under 3 years old—per year
5 yearsFund is under 5 years old—per year
10 yearsFund is under 10 years old—per 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 CBOX
YearReturn barCBOX
2026 YTD+1.7%

Since listing, Apr 17, 2026

CBOX in the news

ETF.net Research hasn’t filed on CBOX yet — coverage lands here as it’s written.

CBOX Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Sep 22, 2026.
—Last 12 months
Payout per share
—Last 12 months

Listed Apr 2026. No distributions yet.

CBOX Risk

How much the fund’s monthly returns vary, scaled to a year.
—
Launched Apr 2026; fills in after 12 months
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.
—
Launched Apr 2026; fills in after 12 months
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.
—
Launched Apr 2026; fills in after 12 months
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.
−0.0005
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.

CBOX Cost

Expense ratio0.19%
  • The middle half of Cash & Ultra-Short Income funds
  • Median 0.19%

37 of the 77 Cash & Ultra-Short Income funds charge less.

CBOX costs $19.00 a year on $10,000. The median Cash & Ultra-Short Income fund costs $19.00.