This is a long-term Treasury ETF that tracks an index composed of US Treasuries with maturities above 10 years. It invests in pure long-term Treasury securities, excluding inflation-protected securities and floating-rate notes.

With its long duration exposure, it suits investors who want to prepare for a period of falling interest rates or adjust the interest rate sensitivity of their bond allocation.

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

The fund holds US Treasuries with maturities above 10 years at index weights, tracking the performance of the long-term Treasury market. By excluding inflation-protected and floating-rate securities, it provides pure interest rate duration exposure, and additions and maturity rollovers are reflected automatically according to index rules.

• Expense ratio lower than the category average
• Simple structure focused on pure long-term Treasuries

Assets under management (AUM) stand at $11.5B, and the expense ratio is 0.03% per year.

The cost burden is relatively low compared with similar long-term Treasury ETFs, and its long duration makes it highly sensitive to interest rate changes.

Because long-term Treasury prices move in the opposite direction of market interest rates, volatility tends to be high depending on rate direction. When rates fall, long duration amplifies price gains, whereas when rates rise, the fund has tended to face heavy downward pressure.

Inflows tend to stand out during periods when expectations of a shift in rate policy are growing, driven by demand for duration bets. Conversely, when inflation concerns come to the fore, money can flow out as investors avoid long-dated bonds, so its trajectory is shaped by the macro environment.

Low expenses and pure long-term Treasury exposure are its strengths, while interest rate sensitivity from its long duration is the core risk.

TLT, which appears in the table, is also a representative ETF in the same long-term Treasury space, and SPTL is a direct substitute with an even lower expense ratio. ETFs such as EDV and ZROZ are variants that extend maturities further or maximize duration through long-term zero-coupon Treasuries. To reduce duration, you can also consider ETFs such as IEF for intermediate-term Treasuries, or SHY for short-term Treasuries to cut it even further.

Here are the points to review before investing in VGLT. Because long-term Treasury ETFs show large price volatility depending on the direction of interest rates, it is important to check duration, the macro environment, expense burden, and currency effects in advance.

Because of its long duration, price declines can be large when rates rise, and real returns can be eroded if inflation persists. Investors should note that even long-term Treasuries carry short-term volatility that is far from small.

It is a suitable choice for investors who want to prepare for falling interest rates or adjust the duration of their bond allocation. If minimizing expenses is the priority, consider SPTL, and if a longer duration is needed, EDV and ZROZ are also worth considering.