This is a passive bond ETF that tracks an index of long-term, investment-grade U.S. municipal bonds. It holds a broad range of state and local government bonds with long remaining maturities, and its core concept is a tax-exempt structure in which interest income is free from federal income tax and the alternative minimum tax.

It suits bond investors who prioritize after-tax returns and can tolerate substantial long-term interest rate exposure.

It is a passive (index-tracking) ETF managed by Vanguard.

The fund holds U.S. investment-grade municipal bonds with long remaining maturities in line with their index weights, tracking the performance of the long-term tax-exempt bond market. Vanguard's bond management infrastructure handles operations, and the fund periodically adjusts its holdings according to the index inclusion rules. Because its maturity range is long, its sensitivity to interest rate changes is relatively high.

• Interest income exempt from federal income tax and the alternative minimum tax
• Lower expense level than the category average

Assets under management (AUM) stand at $487.3M, and the expense ratio is 0.09% per year.

Compared with short-term and intermediate-term ETFs in the same tax-exempt bond category, its maturities are longer, so its interest rate sensitivity is higher, while its cost burden is low.

Long-term municipal bonds are assets with large price swings depending on the direction of interest rates, and they tend to strengthen when rates fall and weaken when rates rise. Because of their long maturities, their prices can fluctuate more widely than those of short-term bond ETFs.

Demand from high-tax-bracket investors seeking after-tax returns drives fund flows into tax-exempt bond ETFs, and inflows and outflows vary with the interest rate environment and changes in tax policy. As long-maturity instruments, they react sensitively to the rate outlook.

Its strengths are tax-exempt interest income and low fees, and its main weakness is the interest rate sensitivity that comes with long maturities.

Among the comparison ETFs shown in the table for the same tax-exempt municipal bond category, differences appear in maturity range, fees, and fund manager. If you want shorter maturities to reduce interest rate sensitivity, VTES, a short-term municipal bond ETF, is a direct substitute, and if you want intermediate maturities, a broadly diversified ETF such as VTEB is another. If you want higher yield through lower-rated high-yield municipal bonds, you can also consider HYD.

Here are the points to review before investing in VTEL. Although it offers a tax-exempt advantage, it is best to thoroughly check the interest rate sensitivity that comes with its long maturities and whether the tax benefit applies at your own tax rate before investing.

Interest rate sensitivity from its long maturities is the main driver of price swings, and you should also consider issuer credit risk and municipal bond market liquidity. Short-term losses can be large when rates are rising.

It is a core tax-exempt bond product suited to long-term bond investors who prioritize after-tax returns. To reduce interest rate sensitivity, the short-term VTES can serve as an alternative, and for broader maturity diversification, a broadly diversified ETF such as VTEB can be an option.