WEEK — Roundhill Weekly T-Bill ETF
Data updated: 2026-05-22
WEEK — Roundhill Weekly T-Bill ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Ultra-Short Treasury / Sovereign Bond · $155.00M AUM · 0.19% expense ratio · 3.9% 1-yr return. From SEC regulatory filings.
WEEK Fund Overview
WEEK — Roundhill Weekly T-Bill ETF is a US ETF managed by Roundhill ETF Trust, categorised as Ultra-Short Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: Roundhill ETF Trust
- Category: Ultra-Short Treasury / Sovereign Bond
- Assets under management: $155.00M
- 1-year return: 3.9%
- Ticker: WEEK
- SEC CIK: 0001976517
- SEC series ID: S000089070
- Share class ID: C000255547
WEEK Holdings
Top 10 holdings of Roundhill Weekly T-Bill ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Treasury Bill | 7.79% |
| Treasury Bill | 7.77% |
| Treasury Bill | 7.76% |
| Treasury Bill | 7.71% |
| Treasury Bill | 7.70% |
| Treasury Bill | 7.70% |
| Treasury Bill | 7.69% |
| Treasury Bill | 7.69% |
| Treasury Bill | 7.68% |
| Treasury Bill | 7.67% |
WEEK Portfolio Allocation
Asset-class allocation of Roundhill Weekly T-Bill ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 100.0% |
| Cash & Equivalents | 0.1% |
WEEK Performance
Total returns for WEEK (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.9% |
| 1 year | 3.9% |
WEEK Risk Information
Risk metrics for WEEK, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 0.1%
WEEK Costs and Fees
WEEK costs about $19 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.19%
- Gross expense ratio: 0.19%
- Portfolio turnover: 0%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
WEEK Cashflows
Over the 12 months to 2026-03, Roundhill Weekly T-Bill ETF had net inflows of $149.02M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $8.00M |
| 2026-02 | $3.00M |
| 2026-01 | $1.00M |
| 2025-12 | $0 |
| 2025-11 | $4.00M |
| 2025-10 | $1.99M |
WEEK Debt Constituents
Largest debt holdings of Roundhill Weekly T-Bill ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Treasury Bill | 7.79% |
| Treasury Bill | 7.77% |
| Treasury Bill | 7.76% |
| Treasury Bill | 7.71% |
| Treasury Bill | 7.70% |
| Treasury Bill | 7.70% |
| Treasury Bill | 7.69% |
| Treasury Bill | 7.69% |
| Treasury Bill | 7.68% |
| Treasury Bill | 7.67% |
WEEK Prospectus and SEC Filings
Official Roundhill Weekly T-Bill ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Ultra-Short Treasury / Sovereign Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.