Quick Read
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WEEK automates the Treasury ladder process: Instead of manually buying and rolling Treasury bills through TreasuryDirect, the ETF handles reinvestment and distributes income weekly.
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The yield comes from short-term Treasury bills: WEEK currently offers a 3.46% 30-day SEC yield while maintaining relatively stable share prices around the $100 level.
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Tax efficiency is a major advantage: Because the fund primarily holds Treasury bills, much of its income is exempt from state and local income taxes, improving after-tax returns for many investors.
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One of the classic ways to earn income from Treasury bills is through a Treasury ladder. You take a lump sum and divide it across multiple maturities, such as three-month, six-month, nine-month, and 12-month Treasury bills. As each rung of the ladder matures, you can either withdraw the proceeds or reinvest them into a new Treasury bill, maintaining the ladder indefinitely.
The problem is that this requires investors to actually manage the process themselves. That means dealing with TreasuryDirect, which has developed a reputation among users for its dated interface, clunky navigation, and occasional technical headaches. Treasury bills also do not pay income in the traditional sense. Instead, they are purchased at a discount to face value and mature at par, with the difference representing your return. If you want ongoing cash flow, you need to continually manage and roll those maturities.
For investors who want the safety and principal protection associated with Treasury bills while receiving regular income, one option is the Roundhill Weekly T-Bill ETF (WEEK). It is the first ETF designed to target a stable net asset value (NAV) week over week while distributing income on a weekly schedule.
What Is WEEK?
WEEK is an actively managed portfolio of U.S. Treasury bills with maturities ranging from zero to three months. The holdings are generally spread equally across multiple short-term Treasury securities, with Roundhill handling the rolling process as individual securities mature.
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Unlike a money market fund, WEEK does not maintain a fixed $1 NAV. However, its share price tends to remain very stable from week to week. In practice, the ETF generally hovers around the $100 level. As interest income accrues throughout the week, the NAV gradually rises in a saw-tooth pattern.
On the ex-distribution date, typically Tuesday, the NAV falls by approximately the amount of the upcoming distribution, with investors receiving the cash payment on Wednesday. Distribution amounts are generally declared on Monday. That weekly schedule is one of the ETF’s defining characteristics.
What I Like About WEEK
As of June 2026, WEEK offers a 3.46% 30-day SEC yield after deducting its 0.19% expense ratio. That places it roughly in line with prevailing short-term interest rates, with the federal funds target range currently sitting between 3.50% and 3.75% after yet another pause from the FOMC.
Where the ETF really stands out is tax efficiency. Because WEEK primarily holds Treasury bills, much of its income benefits from the same tax treatment as direct Treasury ownership. Treasury interest is exempt from state and local income taxes, which can be a meaningful advantage for investors living in high-tax states.
That is one reason I generally prefer Treasury-based income strategies over comparable corporate bond ETFs. Yes, you may sacrifice some headline yield. However, after accounting for taxes, the difference often narrows considerably. Combined with the higher credit quality of Treasury securities, WEEK is decent for investors looking to park cash while still earning income.
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