Vanguard Tax-Exempt Bond Index Fund ETF Shares VTEB

Vanguard Tax-Exempt Bond ETF offers a broad portfolio of investment-grade municipal bonds with an attractive price tag.

The fund tracks the S&P National AMT-Free Municipal Bond Index, which captures a broad slice of the tax-exempt, investment-grade municipal bond market. Eligible issues must have at least USD 25 million outstanding in face value and come from a deal of at least USD 100 million. The index excludes certain sectors such as tobacco and housing, as well as conduit bonds and bonds issued by US territories. These exclusions leave it with a sector tilt. General-obligation bonds typically account for one-third of the portfolio, about 50% higher than its average municipal national intermediate Morningstar Category peer. These bonds tend to carry higher credit ratings than revenue bonds, as they are backed by the general creditworthiness and taxing power of the municipalities instead of a specific project.

The fund’s high-quality credit profile reflects this. It often allocates around 70%-80% of its assets to bonds rated AA and above. By comparison, this figure hovers around 45% for the average of its category peers. This conservative credit risk profile has shielded the fund from the worst of credit shocks, such as the March 2020 drawdown. However, the fund will likely trail peers with riskier profiles when credit spreads tighten during the recovery period. The fund’s average duration is slightly longer than that of the average peer, which can make it more vulnerable to interest rate shocks. Nonetheless, the small difference in duration has not resulted in significant underperformance so far.

Market-value weighting pulls the fund toward the most liquid portion of the market, alleviating trading costs and capacity issues. The fund implements an issuer-level weight cap, but issuance activities in the municipal market are fairly skewed toward a few large states. As of December 2025, bonds from issuers in New York, California, and Texas account for over 35% of the fund’s assets.

The low annual fee is one of this fund’s most prominent advantages. In the long run, its razor-thin expense ratio should provide a performance edge that helps it stay ahead of category peers.

This fund provides straightforward, broad exposure to investment-grade, tax-exempt municipal bonds. Tilting toward liquid, high-quality bonds in this thinly traded market helps limit the fund’s transaction costs and credit risk. It earns an Above Average Process rating.

The fund tracks the S&P National AMT-Free Municipal Bond Index, which captures investment-grade municipal bonds exempt from federal income tax and the alternative minimum tax. Eligible issues must have at least USD 25 million outstanding in face value and come from an original offering of at least USD 100 million. The index excludes certain sectors such as housing and tobacco, as well as conduit bonds and bonds issued by US territories. It weights selected bonds by market value, capping issuer weightings to promote diversification. No issuer can account for more than 25% of the index, and the combined exposure to issuers accounting for more than 4.8% of assets is limited to 45%.

The fund has historically invested nearly one-third of its assets in GO bonds, around 10 percentage points higher than what an average peer allocates here. This is generally the safest sector as these bonds are backed by the general creditworthiness and taxing power of the state. In comparison, its actively managed category peers often reach for revenue bonds in riskier sectors, such as health or housing.

These sector tilts result in a muted credit risk profile. The fund overweights the highest rungs of the investment-grade rating ladder. AA rated bonds account for 55%-60% of its portfolio, while AAA rated bonds claim around 20%. The fund’s conservative portfolio should provide better protection during credit shocks, but it can lag when credit spreads tighten. In contrast, actively managed category peers often allocate a small stake to junk bonds in search of higher yields. These riskier bonds typically have shorter durations, which contributes to this fund’s slightly above-average duration. As of December 2025, the fund’s average duration of 7 years was about a year higher than the median fund in its category.

Market-value weighting pulls the portfolio toward the largest and most liquid issuers. This alleviates trading costs and capacity issues, especially in the fragmented muni market. Muni issuance often concentrates in a few large states: New York, California, and Texas. This fund tends to allocate 30%-40% of its assets to issuers from these states.

Vanguard’s experienced municipal bond team oversees the fund, providing the necessary market knowledge for this asset class. The fund earns an Above Average People Pillar rating.

Portfolio management at Vanguard is a team effort, so key-person risk is not a concern. Managers are supported by traders who focus on execution and credit analysts who handle due diligence. These teams are in constant communication to ensure timely feedback on valuations and market conditions. This helps the managers balance tracking error and transaction costs, important considerations in the fragmented muni market. An independent risk team provides oversight and support for tracking performance, particularly around index rebalancing and corporate actions. A portion of the managers' compensation and performance evaluation is tied to the portfolio's tracking performance, aligning their incentives with investors'.

Justin Schwartz took over from Stephen McFee as the named manager on this portfolio in October 2023. A muni veteran, Schwartz joined Vanguard in 2005 as a municipal bond trader and has worked as a portfolio manager at the firm since. The change was part of a broader restructuring of Vanguard’s muni team to expand the firm’s muni-bond ETF capacity. Despite the manager change, the supporting cast for this strategy remains constant and continues to deliver high-fidelity 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 exchange-traded share class outperformed the category average by 21 basis points annualized from its 2015 inception through December 2025, with slightly higher volatility. Its risk-adjusted return (as measured by Sharpe ratio) was comparable to the category average. Much of its outperformance can be traced to its razor-thin expense ratio and broad scope.

The fund’s quality tilt cushioned its performance during credit shocks compared with its average peer. For example, it outpaced the category average by 61 basis points during the coronavirus-driven drawdown from Feb. 20 through March 23, 2020. On the other hand, the fund lags when credit spreads tighten. It underperformed the category average by 31 basis points when spreads tightened between late March and December 2020.

The fund’s slightly above-average duration can cause modest deviations from the category norm when interest rates move. It lagged the category average by 83 basis points when long-term interest rates ticked higher between March and July 2025. The fund regained some lost ground when interest rates fell between August and October 2025, and its quality tilt benefited its category-relative returns over the full year. In total, the fund lagged the category average by 61 basis points in 2025.

Vanguard Tax-Exempt Bond ETF's Prospectus Adjusted Expense Ratio is 0.03% per year. It places it in the cheapest quintile of the Morningstar US Fund Muni National Interm Category, where the median fee is 0.5% per year. This cost positioning translates into a Medalist Rating Price Score of 2.47, 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.