Vanguard Short-Term Treasury Index Fund ETF Shares VGSH

Vanguard Short-Term Treasury provides a market-value-weighted portfolio of short-term Treasury bonds. Its efficient approach and razor-thin expense ratio make it a compelling option.

The fund tracks the Bloomberg 1-3 Year U.S. Treasury Index, which includes Treasury bonds with between one and three years remaining to maturity. The issuing activity of the US Treasury Department will dictate the portfolio's composition. Market-value-weighting emphasizes the easiest-to-trade issues.

The Treasury market quickly reflects the market's inflation and interest rate expectations. It is difficult for active managers to gain a durable edge and recoup their fees in this market without also taking greater risks than this portfolio. An ultralow-risk fund charging mere basis points like this one presents a high hurdle for any active manager in the category to beat.

Interest rate risk is the only risk the portfolio is exposed to, but even that is kept under wraps by focusing on the short end of the US Treasury yield curve. The fund will lose value when interest rates rise, but that effect will be muted with a lower average duration than most peers. Indeed, the fund fared more than 1 percentage point better than its typical short-government Morningstar Category peer in the inflationary environment of 2022.

Credit risk is virtually nonexistent since each Treasury is backed by the full faith and credit of the US government. This provides investors with a place of refuge when credit markets sour. With less risk comes less reward, though, and this fund may leave some yield on the table by not reaching for riskier bonds. While its long-term historical average yield lags the average category peer, a recent inversion at the short end of the curve means that this fund’s 12-month yield now eclipses the category norm, thanks to its shorter duration profile. Its 12-month yield stood at 4.16% compared with 4.07% for the category average at the end of June 2025.

A low-risk and efficient portfolio allows the fund’s fee to carve a durable advantage in the short government category, earning it an Above Average Process Pillar rating.

The Bloomberg 1-3 Year U.S. Treasury Index includes Treasury bonds with remaining maturities ranging from one to three years. Qualifying bonds must have at least USD 300 million in outstanding face value. The index is market-value-weighted and rebalances each month. Market value weighting emphasizes the largest and most liquid Treasuries while controlling turnover and the associated transaction costs. This results in a conservative portfolio that limits return potential but also caps risk.

The fund is relatively insulated from interest rate risk, given it tracks the short end of the Treasury yield curve. Its average effective duration was 1.9 years at the end of June 2025, or about six months less than its average peer. This means this strategy should be less affected than most peers when interest rates rise.

Credit risk is muted. Category peers are similarly safe, but many hold non-Treasury government bonds like agency mortgage-backed securities that carry prepayment risk. Treasuries do not. The portfolio holds only US Treasury securities, which are backed by the full faith and credit of the US government. This should ensure virtually no risk of default.

The politicization of the debt ceiling is a watch point, though. US debt has been downgraded to AA from AAA by the three largest ratings agencies. Moody’s, which downgraded US debt most recently in May 2025, cited concerns about rising government debt and no clear path to fix it. Still, the risk of default is very low, and investors should feel comfortable with the Treasury securities held in this portfolio.

Vanguard's fixed-income index team has many advantages. It taps into a global network of portfolio managers, sector specialists, and trading desks to deliver accurate index tracking in the markets that it touches. It earns an Above Average People Pillar rating.

Experienced managers make up Vanguard’s team. They’re supported by a deep bench of talent that allows them to focus on portfolio construction and tracking performance. Each fund has a lead manager who collaborates with traders and sector specialists to ensure tracking performance stays within well-defined guardrails.

Specialization extends in many directions. ETF specialists help manage creation and redemption baskets, while a dedicated data team handles index changes and corporate actions. International specialists help manage portfolios in local markets outside of the US to keep costs down and tracking tight.

Many bonds aren’t available for trading, so index funds cannot hold every bond in an index. Despite that drawback, Vanguard’s team has continued to invest in new ways to improve the precision of its tracking efforts while keeping a lid on trading costs. It recently expanded its quantitative unit, which developed an optimization tool that incorporates traders' insights and liquidity data to improve tracking performance.

Vanguard maintains its High Parent Pillar rating as it continues to grow under new leadership.

CEO Salim Ramji has had a busy first year captaining Vanguard’s crew, and the ship remains pointed in the right direction. The firm made its largest round of fee cuts in early 2025, which came at an estimated cost of USD 350 million. It established a separate division dedicated to its advice and wealth management efforts, a sign that it wants to seriously compete within those lines of business. Asset growth has continued to be a huge success. Only BlackRock’s inflows rival the money Vanguard is taking in. Likewise, the number of clients it serves has more than doubled since 2015.

Despite that success, an ever-growing number of clients has presented a challenge: Vanguard can’t grow its services fast enough to keep up with demand. In some instances, it has had to curb certain services and capabilities or raise fees on others to cope, causing some loyal clients to criticize what they perceive as deteriorating services.

Vanguard has ambitions to bring its disruptive legacy to the bond market. It created roughly a dozen low-cost bond exchange-traded funds for US investors and several others abroad over the 12 months through June 2025. All have low fees in their respective categories, and the actively managed strategies align with Vanguard’s philosophy. They are relatively easy to understand and are conservatively managed.

Vanguard has another opportunity to prove that clients are still its priority. On the surface, its endeavor into the high-fee deal-making world of private assets alongside Wellington and Blackstone looks like a cultural mismatch. So far, the collaboration hasn’t produced anything that’s concerning.

The fund generated solid risk-adjusted performance from its November 2009 inception through June 2025. Over that span, the exchange-traded fund share class outperformed the category average by 15 basis points annualized, with lower volatility. Lower interest rate and credit risk helped insulate the portfolio from the sometimes-volatile movements of longer-duration or lower-quality peers.

When interest rates rise, this fund will lose value. A shorter average effective duration than most category peers minimizes this negative effect, though. This fund outperformed its typical peer by more than 1 percentage point in the rising-rate environment of 2022.

This fund's conservative profile can leave it lagging its peers when the market rewards credit risk, interest rate risk, or both. But the fund is well-positioned to overcome those obstacles with its minuscule fee and maintain a long-term advantage.

Vanguard Short-Term Treasury ETF's Prospectus Adjusted Expense Ratio is 0.03% per year. It places it in the cheapest quintile of the Morningstar US Fund Short Government Category, where the median fee is 0.49% per year. This cost positioning translates into a Medalist Rating Price Score of 2.24, which reflects its relative price positioning within the category. The Price Score ranges from -2.50 (most expensive) to +2.50 (cheapest), with higher scores indicating better cost competitiveness.