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CBOX vs TBLL

Calamos Tax-Aware Collateral ETF

CBOXCCboe

Invesco Short Term Treasury ETF

TBLLANYSE Arca

Overlap

Expense ratio

TBLL −0.11pt a year

CBOX0.19%TBLL0.08%

Avg volume · 30D

TBLL 3.5×the volume

CBOX88.4KTBLL313K

CBOX vs TBLL Performance

Jul 31, 2026 – Oct 30, 2026

+1.1%CBOX+0.9%TBLL

Jul 31, 2026 to Oct 30, 2026. CBOX +1.1%. TBLL +0.9%. Use the arrow keys to read each point.0%0.2%0.4%0.6%0.8%Jul 2026Sep 2026Oct 2026
Expense ratio
CBOX 0.19%
TBLL 0.08%, better
Fund size
CBOX $1.8B
TBLL $2.9B
1Y total return
CBOX No data
TBLL +3.6%
Yield (12M)
CBOX No data
TBLL 3.59%
Holdings
CBOX 2
TBLL 90
Avg volume (30D)
CBOX 88.4K sh
TBLL 313K sh, better
NAV per share
CBOX $102.15
TBLL $105.62
52W range

ETF.net Grade

CBOX: Cost 38, Risk 52, Mission not scored, Tradability 46, Holdings 24, Durability 42. TBLL: Cost 89, Risk 44, Mission 100, Tradability 80, Holdings 66, Durability 80.
Pillar letters and Scores for CBOX, TBLL, with each pillar’s weight
PillarCBOXTBLL
Cost30% weightD38A89Higher
Mission25% weightNot scoredA100
Risk15% weightC52HigherC44
Tradability15% weightC46A80Higher
Holdings10% weightF24B66Higher
Durability5% weightC42A80Higher

Rank among Cash & Ultra-Short Income funds

How we build Categories ›
Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

Same Category. CBOX and TBLL are both graded against the same 78 Cash & Ultra-Short Income funds, so their Grades compare head to head.

Cash & Ultra-Short Income⁠

Category · 78 funds
See all 78 ›

TBLL ranks 4th and CBOX 67th of 78 funds in the Cash & Ultra-Short Income Category.

  1. Rank 1AICSHiShares Ultra Short Duration Bond Active ETFScore 85
  2. Rank 2ACLIPGlobal X 1-3 Month T-Bill ETFScore 82
  3. Rank 3AVUSBVanguard Ultra-Short Bond ETFScore 81
  4. Rank 4ATBLLInvesco Short Term Treasury ETFScore 80
  5. Rank 4AVBILVanguard 0-3 Month Treasury Bill ETFScore 80
  6. Rank 66CXBOXRoundhill Box Spread ETFScore 42
  7. Rank 67CCBOXCalamos Tax-Aware Collateral ETFScore 40
  8. Rank 67CCMBOWayfinder Dynamic U.S. Interest Rate ETFScore 40

Our read on each fund

ETF.net Research

CBOXCCalamos Tax-Aware Collateral ETF

TBLLAInvesco Short Term Treasury ETF

In short

CBOX No data

TBLL The bill fund that stretches to a full year. TBLL owns U.S. Treasuries maturing in one year or less and charges 0.08%, well under the typical fund in its 0-1 year Treasury group.

Stated mandate

CBOX No data

TBLL The fund invests primarily in U.S. Treasury obligations with maturities of one year or less and seeks exposure to the ICE U.S. Treasury Short Bond Index.

Why people hold it

CBOX No data

  • TBLL Charges 0.08% a year against a 0.14% median for its 0-1 year Treasury cohort, and undercuts BIL, the 1-3 month bill fund at 0.14%.
  • Fishes the entire under-one-year curve, about 90 Treasury positions, instead of camping in 1-3 month paper like much of the peer shelf.
  • Live since 2017 and a multi-billion-dollar fund, with index tracking among the tighter implementations in its 17-fund group.
  • Distributions land monthly, and the portfolio is Treasury obligations only, so no corporate credit rides along.

Worth knowing

CBOX No data

  • TBLL Not the cheapest seat in the row: XONE runs 0.03% and VBIL 0.06%, so the cost gap is a few basis points.
  • Reaching out to one-year maturities carries slightly more interest-rate sensitivity than a strict 1-3 month bill portfolio.
  • Moderately traded rather than the volume leader of its category, so spreads deserve a look on larger orders.

Full CBOX profile⁠

Full TBLL profile⁠

CBOX vs TBLL Holdings

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

CBOX vs TBLL Cost

Overpaying CBOX vs TBLL

$2,263

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

  • CBOX 0.19%

    $3,952

  • TBLL 0.08%

    $1,689

$10,000
30 years

Cost over time

  • CBOX 0.19%
  • TBLL 0.08%
  • Overpaying
One line per fund, from year 0 to year 30. Use the arrow keys to read each point.$0$1K$2K$3K$4K051015202530CBOX $3,952TBLL $1,689

Year by year

YearCBOXTBLLOverpaying
10$347$147$200
20$1,351$575$776
30$3,952$1,689$2,263

Expense ratio

  • 0.19%CBOX
  • 0.08%TBLL, cheaper
  • Middle half of Cash & Ultra-Short Income funds
  • Median 0.18%

TBLL 10th cheapest of 78 funds

CBOX 42nd cheapest of 78 funds

CBOX vs TBLL Dividends

Last 12 months to Oct 30, 2026
Yield (12M)
CBOX No data
TBLL 3.59%
Payout (12M)
CBOX None
TBLL $3.79
Last payment
CBOX No data
TBLL $0.34
Ex-dividend
CBOX No data
TBLL Oct 19, 2026
Paid on
CBOX No data
TBLL Oct 23, 2026
Frequency
CBOX No data
TBLL Monthly

Distribution history

Per share, 2023 to 2026, same scale for both

CBOXAll CBOX payments⁠

No distribution history available.

TBLLMonthly · 46 paymentsAll TBLL payments⁠
One bar per payment. 46 payments from 2023 to 2026 YTD. Jan 23, 2023 $0.32; Feb 21, 2023 $0.32; Mar 20, 2023 $0.37; Apr 24, 2023 $0.37; May 22, 2023 $0.40; Jun 20, 2023 $0.39; Jul 24, 2023 $0.43; Aug 21, 2023 $0.44; Sep 18, 2023 $0.43; Oct 23, 2023 $0.45; Nov 20, 2023 $0.47; Dec 18, 2023 $0.49; Jan 22, 2024 $0.45; Feb 20, 2024 $0.46; Mar 18, 2024 $0.44; Apr 22, 2024 $0.43; May 20, 2024 $0.44; Jun 24, 2024 $0.44; Jul 22, 2024 $0.46; Aug 19, 2024 $0.47; Sep 23, 2024 $0.44; Oct 21, 2024 $0.43; Nov 18, 2024 $0.42; Dec 23, 2024 $0.37; Jan 21, 2025 $0.39; Feb 24, 2025 $0.37; Mar 24, 2025 $0.36; Apr 21, 2025 $0.35; May 19, 2025 $0.33; Jun 23, 2025 $0.37; Jul 21, 2025 $0.38; Aug 18, 2025 $0.35; Sep 22, 2025 $0.35; Oct 20, 2025 $0.35; Nov 24, 2025 $0.33; Dec 22, 2025 $0.35; Jan 20, 2026 $0.33; Feb 23, 2026 $0.32; Mar 23, 2026 $0.30; Apr 20, 2026 $0.27; May 18, 2026 $0.32; Jun 22, 2026 $0.32; Jul 20, 2026 $0.31; Aug 24, 2026 $0.30; Sep 21, 2026 $0.32; Oct 19, 2026 $0.34. Use the arrow keys to read each point.$0$0.5020232026YTD

CBOX vs TBLL Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years
CBOX No dataTBLL 0.3%
Return per unit of riskSharpe ratio, 3 years
CBOX No dataTBLL −0.66
Worst fallMax drawdown, 5 years
CBOX No dataTBLL −0.4%
Market sensitivityBeta, 5 years
CBOX −0.0005TBLL 0.01

CBOX and TBLL in the news

All news⁠

Popular comparisons

  • CBOXCvsICSHA

    Calamos Tax-Aware Collateral ETF · iShares Ultra Short Duration Bond Active ETF

    Expense ratio
    0.19% · 0.08%
    Category
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  • TBLLAvsICSHA

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    Expense ratio
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  • CBOXCvsVUSBA

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    Expense ratio
    0.19% · 0.10%
    Category
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  • TBLLAvsVUSBA

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    Expense ratio
    0.08% · 0.10%
    Category
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