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VUSB vs WEEK

Vanguard Ultra-Short Bond ETF

VUSBACboe

Roundhill Weekly T-Bill ETF

WEEKBCboe

Overlap

Expense ratio

VUSB −0.09pt a year

VUSB0.10%WEEK0.19%

Avg volume · 30D

VUSB 50.8×the volume

VUSB1.97MWEEK38.8K

VUSB vs WEEK Performance

Oct 31, 2025 – Oct 30, 2026

+3.7%VUSB+3.6%WEEK

Oct 31, 2025 to Oct 30, 2026. VUSB +3.7%. WEEK +3.6%. Use the arrow keys to read each point.0%1%2%Oct 2025Apr 2026Oct 2026
Expense ratio
VUSB 0.10%, better
WEEK 0.19%
Fund size
VUSB $9.9B
WEEK $183M
1Y total return
VUSB +3.7%, better
WEEK +3.6%
Yield (12M)
VUSB 4.27%, better
WEEK 3.53%
Holdings
VUSB 1348
WEEK 14
Avg volume (30D)
VUSB 1.97M sh, better
WEEK 38.8K sh
NAV per share
VUSB $49.62
WEEK $100.04
52W range

ETF.net Grade

VUSB: Cost 84, Risk 53, Mission 100, Tradability 66, Holdings 90, Durability 89. WEEK: Cost 38, Risk 49, Mission 100, Tradability 59, Holdings 100, Durability 47.
Pillar letters and Scores for VUSB, WEEK, with each pillar’s weight
PillarVUSBWEEK
Cost30% weightA84HigherD38
Mission25% weightA100A100
Risk15% weightC53HigherC49
Tradability15% weightB66HigherB59
Holdings10% weightA90A100Higher
Durability5% weightA89HigherC47

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. VUSB and WEEK 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 ›

VUSB ranks 3rd and WEEK 31st 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 30BCGUICapital Group Ultra Short Income ETFScore 65
  6. Rank 31BWEEKRoundhill Weekly T-Bill ETFScore 64
  7. Rank 32BOBILUS Treasury 12 Month Bill ETFScore 63

Our read on each fund

ETF.net Research

VUSBAVanguard Ultra-Short Bond ETF

WEEKBRoundhill Weekly T-Bill ETF

In short

VUSB Vanguard's first actively managed bond ETF, run by its in-house fixed income team and priced at 0.10%. It holds investment-grade paper maturing inside two years: a step past a money fund, well short of a real bond fund.

WEEK A T-bill fund built around the calendar. WEEK holds Treasury bills maturing in 0 to 3 months, aims to pay every week, and sizes those payments to hold its NAV steady week over week. It launched in 2025 as the first of its kind.

Stated mandate

VUSB The fund seeks current income with limited price volatility while investing in diversified high- and medium-quality fixed-income securities. It expects to maintain a dollar-weighted average maturity of 0–2 years.

WEEK The Fund seeks weekly distributions of current income by investing primarily in U.S. Treasury bills maturing within 0 to 3 months at purchase. It is actively managed and seeks to maintain a stable week-over-week NAV.

Why people hold it

  • VUSB At 0.10%, it costs half the typical ultra-short bond ETF and undercuts the other leaders in the group: SHV, PULS, FLDR and DUSB all charge 0.15%.
  • Active, not adventurous. The managers buy investment-grade bonds (A3-or-better high quality plus BBB-tier medium quality) and hold average maturity to zero-to-two years.vanguard.com
  • Income lands monthly, sourced from roughly 170 bonds, so no single issuer drives the outcome.
  • A multi-billion-dollar fund that trades actively, and the same portfolio team also runs a similar Vanguard ultra-short fund.vanguard.com
  • WEEK Income arrives as weekly cash, not accrual: the fund targets a distribution every week, sized to keep NAV level week over week.roundhillinvestments.com
  • An actively managed bill ladder someone else rolls: it buys Treasury bills maturing within 0 to 3 months and handles the reinvestment as they mature.roundhillinvestments.com
  • Holdings match the label: US Treasury bills, no reach into commercial paper or corporate credit to pad the payout.

Worth knowing

  • VUSB This is not a money market fund. No fixed $1 share price, and the market price can trade above or below the value of the holdings.vanguard.com
  • The mandate allows BBB-tier credit, a notch of risk a Treasury-only neighbor like SHV doesn't take.vanguard.com
  • Bonds this short reprice with short-term rates, so the monthly payout drifts up and down instead of holding a set level.vanguard.com
  • WEEK The weekly plumbing costs more than the aisle: 0.19% a year, against a category median of 0.14% and cheaper bills funds like VBIL at 0.06% and CLIP at 0.07%.
  • Not a money market fund: no fixed $1 NAV, and Roundhill discloses that payments exceeding income and gains are treated as return of capital.roundhillinvestments.com
  • A 2025 launch, mid-sized and moderately traded, so spreads and depth trail the entrenched giants of the T-bill aisle.

Full VUSB profile⁠

Full WEEK profile⁠

VUSB vs WEEK 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.

VUSB vs WEEK Cost

Overpaying WEEK vs VUSB

$1,846

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

  • VUSB 0.10%

    $2,106

  • WEEK 0.19%

    $3,952

$10,000
30 years

Cost over time

  • VUSB 0.10%
  • WEEK 0.19%
  • Overpaying
One line per fund, from year 0 to year 30. Use the arrow keys to read each point.$0$1K$2K$3K$4K051015202530WEEK $3,952VUSB $2,106

Year by year

YearVUSBWEEKOverpaying
10$183$347$164
20$717$1,351$634
30$2,106$3,952$1,846

Expense ratio

  • 0.10%VUSB, cheaper
  • 0.19%WEEK
  • Middle half of Cash & Ultra-Short Income funds
  • Median 0.18%

VUSB 13th cheapest of 78 funds

WEEK 42nd cheapest of 78 funds

VUSB vs WEEK Dividends

Last 12 months to Oct 30, 2026
Yield (12M)
VUSB 4.27%, better
WEEK 3.53%
Payout (12M)
VUSB $2.12
WEEK $3.54
Last payment
VUSB $0.18
WEEK $0.07
Ex-dividend
VUSB Oct 1, 2026
WEEK Oct 27, 2026
Paid on
VUSB Oct 5, 2026
WEEK Oct 28, 2026
Frequency
VUSB Monthly
WEEK Weekly

Distribution history

Per share, 2026, same scale for both

VUSBMonthly · 9 paymentsAll VUSB payments⁠
One bar per payment. 9 payments in 2026 YTD. Feb 2, 2026 $0.18; Mar 2, 2026 $0.17; Apr 1, 2026 $0.18; May 1, 2026 $0.18; Jun 1, 2026 $0.17; Jul 1, 2026 $0.18; Aug 3, 2026 $0.17; Sep 1, 2026 $0.17; Oct 1, 2026 $0.18. Use the arrow keys to read each point.$0$0.202026YTD
WEEKWeekly · 43 paymentsAll WEEK payments⁠
One bar per payment. 43 payments in 2026 YTD. Jan 6, 2026 $0.07; Jan 13, 2026 $0.07; Jan 21, 2026 $0.07; Jan 27, 2026 $0.07; Feb 3, 2026 $0.06; Feb 10, 2026 $0.07; Feb 18, 2026 $0.07; Feb 24, 2026 $0.07; Mar 3, 2026 $0.07; Mar 10, 2026 $0.07; Mar 17, 2026 $0.07; Mar 24, 2026 $0.07; Mar 31, 2026 $0.07; Apr 7, 2026 $0.07; Apr 14, 2026 $0.07; Apr 21, 2026 $0.07; Apr 28, 2026 $0.07; May 5, 2026 $0.07; May 12, 2026 $0.07; May 19, 2026 $0.07; May 27, 2026 $0.07; Jun 2, 2026 $0.07; Jun 9, 2026 $0.07; Jun 16, 2026 $0.07; Jun 23, 2026 $0.07; Jun 30, 2026 $0.07; Jul 7, 2026 $0.07; Jul 14, 2026 $0.07; Jul 21, 2026 $0.07; Jul 28, 2026 $0.07; Aug 4, 2026 $0.07; Aug 11, 2026 $0.07; Aug 18, 2026 $0.07; Aug 25, 2026 $0.07; Sep 1, 2026 $0.07; Sep 9, 2026 $0.07; Sep 15, 2026 $0.07; Sep 22, 2026 $0.07; Sep 29, 2026 $0.07; Oct 6, 2026 $0.07; Oct 13, 2026 $0.07; Oct 20, 2026 $0.07; Oct 27, 2026 $0.07. Use the arrow keys to read each point.$0$0.202026YTD

VUSB vs WEEK Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years
VUSB 0.8%WEEK 0.2%since Apr 2025
Return per unit of riskSharpe ratio, 3 years
VUSB 0.86WEEK −1.68since Apr 2025
Worst fallMax drawdown, 5 years
VUSB −1.7%WEEK −0.1%since Mar 2025
Market sensitivityBeta, 5 years
VUSB 0.10WEEK 0.0004

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