iShares 0-3 Month Treasury Bond ETF

Key metrics

Fund snapshot

Verify current data at the official fund page. Metrics change.

Performance snapshot

Past performance is not indicative of future results.

The returns look boring on purpose — they're supposed to. SGOV has a beta of essentially zero, which means it barely moves with the market. Over 3 years it has returned about 3.7% annually, tracking short-term Treasury rates minus the 9-cent fee per thousand dollars invested. For comparison, the S&P 500 averaged about 8% over the same period — but that number includes crashes like 2022 when equities fell nearly 20%. SGOV didn't fall at all.

What it is and why it matters

What it actually is

SGOV holds U.S. Treasury bills that mature in less than 3 months. That's the fund's entire strategy, stated plainly. The index it tracks — ICE's 0-3 Month US Treasury Securities Index — specifies exactly what goes in: T-bills issued by the U.S. government with maturities between 1 day and 3 months from purchase.

The portfolio typically holds 24 different bill maturities at any given time, staggered so that bills mature every week or two. When a bill matures, SGOV buys a new one. This rolling process keeps the fund's average maturity near zero while collecting interest on whatever bills are outstanding.

How it works mechanically

The trick most investors skip: T-bills pay no coupon — they're issued at a discount and redeemed at face value. A 91-day bill purchased for $98.50 pays back exactly $100 on maturity, with the $1.50 difference constituting interest. SGOV accumulates these discounts daily and distributes them to shareholders as monthly dividends.

The fund uses an authorized participant (AP) creation/redemption mechanism typical of ETFs — large institutional investors can exchange baskets of T-bills for shares or vice versa, which keeps the share price closely aligned with net asset value. This is why SGOV trades at essentially exactly $100 per share and doesn't have the kind of bid-ask spreads that plague less liquid ETFs.

Why that matters for the Park slot

The Park slot has a single job: hold cash safely while earning something above zero. SGOV accomplishes this with near-perfect efficiency — its yield tracks short-term Treasury rates almost exactly, minus 0.09%. The fund's daily NAV fluctuation is typically measured in fractions of a cent.

This matters because the alternative — leaving cash in a brokerage account earning nothing while waiting to deploy it into VOO or SCHD — costs investors real money in opportunity terms. Even at modest rate levels, $50,000 sitting idle for 3 months loses roughly $187 in forgone interest compared with parking it in SGOV.

The real tradeoff

SGOV's yield falls when the Fed cuts rates. This sounds obvious but bears emphasizing: the Park slot is not a hedge against rate decreases. Investors who bought SGOV at 5%+ yields in late 2023 and expected to hold it through a rate-cutting cycle would have been surprised by how quickly income shrinks.

The honest alternative here is to accept that Park exists for liquidity, not yield protection. If you want guaranteed yield even as rates fall, buy longer-dated Treasuries (TLT) or short-term bonds (SHV). But SHV carries more interest rate risk precisely because it holds 0–1 year bills instead of 0–3 month ones.

Cost analysis

Expense ratio in context

SGOV charges 0.09%, which means $9 per year for every $10,000 invested. That's roughly the price of a coffee at most shops and significantly cheaper than virtually any actively managed alternative to cash parking.

The category average for ultrashort bond ETFs sits around 0.35% — nearly four times SGOV's fee. This is actually worse than usual for index fund competition, because the two dominant alternatives (BIL at 0.14% and SHV at 0.15%) are still quite cheap. The real cost here is measured in basis points per year on a cash position that already earns almost nothing.

How it compares to alternatives

The yield differences between these funds are measured in hundredths of a percent — statistically zero over any meaningful holding period. The real differentiator is expense ratio, and SGOV wins on that dimension decisively.

Long-term compounding impact

$100,000 invested in SGOV versus BIL for 20 years costs roughly $865 more with BIL's higher fee. That's the kind of number that sounds impressive but is actually negligible when you consider the fund's total return over 20 years — somewhere around $190,000 to $220,000 at current rate levels. The expense ratio matters enormously for equity index funds (VOO vs VTI) and not at all for cash parking.

SGOV vs. the competition

SGOV vs. BIL

Same strategy, different sponsor, and SGOV wins on every cost metric. The SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) holds essentially identical assets — U.S. Treasury bills maturing in under 3 months — but charges 0.14% instead of 0.09%. That's a 56% fee premium for what is, at this scale, indistinguishable exposure.

BIL has been around longer (2007 vs 2020) and State Street built it first, which gave it credibility early on. But SGOV overtook it in AUM ($84.75B vs $47.08B) once investors noticed the fee difference. The two funds' yields differ by a few hundredths of a percent — basically noise.

SGOV vs. SHV

iShares' own longer-duration short-term fund does the same job with slightly more rate exposure. The iShares 0-1 Year Treasury Bond ETF (SHV) holds Treasuries maturing in up to 1 year instead of 3 months. This means SHV's yield typically runs a few basis points higher when rates are rising and falls faster when they're falling — the classic duration tradeoff, compressed into ultrashort timeframes.

The difference matters mostly for investors who want to earn slightly more at the cost of accepting some price volatility. Over 3 months, both funds produce nearly identical returns. Over a year or two, SHV may outperform if rates rise and underperform if they fall — but not by enough to justify the complexity of deciding which fund to use.

SGOV vs. USFR

The floating-rate alternative most investors don't need. The WisdomTree Floating Rate Treasury Fund (USFR) holds Treasury securities with interest rates that reset periodically, typically tied to SOFR or similar benchmarks. This means the fund's yield moves up and down with short-term rate changes, sometimes more smoothly than SGOV because floating-rate notes adjust faster as markets price in Fed decisions.

The complexity of a floating-rate strategy is what USFR charges for — 0.15% expense ratio compared to SGOV's 0.09%. Most investors using the Park slot don't care about smooth yield curves; they just want cash parking that works and doesn't require another decision to make.

Verify current data with fund sponsors. Numbers change.

Who should own SGOV

Investors who should consider it

Anyone with a brokerage account and cash sitting in it doing nothing. Most investors leave uninvested money — paychecks, dividends, rebalancing proceeds — sitting as idle cash earning zero. Parking that money in SGOV while you decide what to deploy is the easiest free lunch in investing.

Emergency fund holders with brokerage accounts who want yield on their reserves. If your emergency fund sits in a checking account or low-yield savings, moving it to SGOV gives you higher income and immediate access. The only caveat is FDIC insurance — consider splitting between bank deposits (up to $250k per institution) and SGOV for the excess.

Investors building toward a larger allocation who need temporary parking. If you're dollar-cost averaging into VOO over 6 months, SGOV is the natural holding pattern. The fund's monthly dividends mean your cash doesn't just sit there — it works while waiting.

Investors who should look elsewhere

Anyone with a time horizon longer than 1 year. If you're investing for retirement in 20 years, SGOV is the wrong slot. Put that money in your Grow allocation (VOO or VTI) where compounding has decades to work instead of wasting it on cash returns.

Investors seeking FDIC-insured deposits. If you need the federal insurance floor and don't want any brokerage risk, keep your emergency fund in a bank. SGOV is backed by U.S. Treasuries (which are as close to "safe" as exists in finance), but they aren't FDIC-insured deposits — they're securities held in a brokerage account.

Risks and considerations

Interest rate risk — yield falls when the Fed cuts rates. This is SGOV's primary vulnerability, though it manifests as income decline rather than price loss. If the Fed cuts from 5% to 1%, your monthly paycheck from SGOV shrinks by roughly $33 per month on a $100,000 position. The fund doesn't lose principal in this scenario — just income.

Credit risk is effectively zero but not zero. SGOV holds U.S. Treasury bills, which are backed by the full faith and credit of the United States government. This means the risk isn't a default on any individual bill; it's the much more extreme scenario of sovereign default. That's an absurdly unlikely event but worth noting if you're being thorough about risk.

The yield is not guaranteed. Unlike a certificate of deposit or a savings account rate, SGOV's distribution yield changes every time the fund purchases new bills at different market rates. The 30-day SEC yield published each month is a snapshot — useful for comparison but not a promise of future performance. Over long periods it has averaged roughly what short-term Treasury rates have been, minus the fee.

How SGOV fits in the Five Fund Frame

The Park slot is where most investors make a mistake they don't realize they're making: leaving idle cash earning nothing. The Five Fund Frame requires a dedicated position for money you might need in the near term, and SGOV accomplishes this with minimal overhead. It doesn't try to be clever — it's just T-bills held inside an ETF wrapper that pays monthly dividends.

The suggested Park allocation by life stage ranges from 5% (20s) to 20% (60s+), reflecting the increasing need for liquidity as retirement approaches. A 35-year-old investor with steady income and a paid-down mortgage might only need 10% in Park — cash waiting for deployment into the Grow slot during market dips. Someone approaching retirement at 60 might keep 20% in SGOV to avoid forced selling of equities during downturns.

Starting points, not personalized advice. Adjust to your situation.