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Seeking Alpha | February 12, 2026 | Author: Binary Tree Analytics |

Vanguard Extended Duration Treasury ETF offers low-cost, passive exposure to long-duration U.S. Treasury STRIPS with a 24-year average maturity. EDV is highly sensitive to long-term interest rates; a 1% rate move drives a ~24% price change, amplifying both upside and downside. The ETF is best suited for trading or strategic rate positioning, not for cash-flow-focused investors seeking defined coupons and step-down risk. EDV’s main risk is rising inflation or growth, which could drive rates higher and result in significant losses due to its duration profile.

Introduction to the Vanguard Extended Duration Treasury ETF

Not all treasury bonds are equal. Some are short-dated and represent a great way to park spare cash, while others have maturities exceeding 20 years, making them investment vehicles. What they all share in common is the government guarantee and a very high credit rating, albeit no longer AAA (the U.S. government is no longer rated AAA by the big three agencies).

In today’s article, we are going to talk about the Vanguard Extended Duration Treasury ETF (EDV) and its specifics within a larger investment framework.

The Segmentation of the Treasuries Sector

The treasury universe is not uniform, with a number of distinct segments:

• Treasury Bills: securities that have a maturity of one year or less
• Treasury Notes: securities that have maturities ranging from 2 to 10 years
• Treasury Bonds: securities that have maturities of more than 10 years
• Treasury Inflation-Protected Securities (‘TIPS’): securities that have maturities of 5, 10, and 30 years
• Floating-Rate Notes (FRNs): securities that have a maturity of two years and a rate of interest that is adjusted each quarter

While there are a number of segments, the largest one is represented by Treasury Notes.

The current average maturity for U.S. debt is 71 months (i.e., 5.9 years), a bit higher than the 20-year average of 65 months (5.4 years). It is interesting to notice in the above graph that the Treasury took advantage of the low-rate environment post-Covid in order to increase the tenor of the U.S. debt (this is due to low all-in rates). Note how the weighted average maturity increased in 2022. It is now coming down, and one should expect it to come down further as the government will focus on issuing shorter, cheaper debt.

STRIPS Are Created by the Market

As per the above definition, treasury bonds represent U.S. government obligations with maturities above 10 years. In fact, the U.S. Treasury only issues bonds with 20- and 30-year maturities:

We sell Treasury Bonds for a term of either 20 or 30 years. Bonds pay a fixed rate of interest every six months until they mature. You can hold a bond until it matures or sell it before it matures.

So on the primary market, the Treasury only places 20-year or 30-year new bonds. However, as these bonds come closer to maturity, their tenor decreases, thus creating a number of secondary issuances with different maturities.

And then there are ‘STRIPS.’ ‘STRIPS’ is an acronym for Separate Trading of Registered Interest and Principal of Securities, and it basically references the fact that the underlying financial instruments have only one bullet payment.

Historically, investors looking at Treasury securities decided that only certain aspects were appealing to some of their needs (i.e., only the interest component or only the principal component) and decided to strip the original Treasury security into underlying cash flows with their own identifiers. Basically, STRIPS lets investors hold and trade the individual interest and principal components of eligible Treasury notes and bonds as separate securities:

STRIPS were first introduced by investment dealers in the U.S. in the 1960s. They were initially created by physically stripping the paper coupons from bearer bonds and selling them as separate securities. The disadvantages of bearer bonds, such as the investor being unable to receive an interest payment if the coupon was lost or stolen, leading to issuing STRIPS in electronic book-entry form.

History is fascinating, and it is worth remembering that back in the day, bonds were in physical paper format; thus, ‘stripping’ a bond actually meant tearing actual paper coupons. The 10-year note would have one piece of paper for the principal and many ‘coupons,’ representing the right to an interest payment on the specified date. Thus, ‘stripping’ purely represented tearing the paper in two and selling the principal piece separate from the interest coupons.

Irrespective of the coupon/principal feature, STRIPS are still Treasuries; hence, they benefit from the full guarantee of the U.S. government. There is no credit risk here.

EDV Composition

As per its own definition, EDV: Seeks to track the performance of the Bloomberg U.S. Treasury STRIPS 20–30 Year Equal Par Bond Index. The Bloomberg U.S. Strips 20+ Yr Index measures US dollar-denominated, fixed-rate, Separate Trading of Registered Interest and Principal of Securities (STRIPS) registered with the US Treasury’s Bureau of Public Debt. The index includes interest and principal payments stripped from existing US Treasury notes and bonds. STRIPS are excluded from the US Treasury index because their inclusion would result in double-counting. Securities must have a maturity greater than or equal to 20 years. The index was launched in October 2006, with history backfilled to January 1, 2006.

EDV is therefore a passive ETF that targets the long end of the curve via STRIPS. The analytics for the fund are as follows:
• AUM: $3.8 billion
• Expense ratio: 0.05%
• Duration: 24 years
• Avg. Maturity: 24.6 years
• Yield to maturity: 5%
• SEC Yield: 5.13%

The fund has a very low expense ratio and a long duration of 24 years. Given its composition that has no credit risk (STRIPS are government debt), the name is fully driven by the levels in long-term rates.

Long-term Rate Drivers

The Federal Reserve, via monetary policy, controls the front end, while the bond markets and financial professionals control the back end. By ‘control,’ we mean the drivers. For example, 2-year treasuries are highly correlated with Fed Funds, so when the Fed cuts rates, it also moves 2-year yields lower.

When it comes to the back end, though, correlations break down, and the bond market is the one setting yields based on inflation expectations and fiscal deficits:

The drivers of short-dated U.S. Treasury yields are relatively clear. But what are the factors that affect long-term yields? In general, two-year Treasury yields can be seen as a compounding of two years’ worth of daily federal funds rate expectations, with small adjustments for liquidity disparities and other factors. However, when it comes to 10-year Treasuries, factors like inflation, economic growth and Federal Reserve’s (Fed) monetary policy, among others, play important roles.

If we look historically, we can see an interesting technical pattern for long rates. Depending on geopolitical and globalization productivity factors, we can see 30-year rates of spending time in three distinct ranges:
• 5% to 6%
• 4% to 5%
• below 4%

We are of the opinion that the benefits of globalization are now fully priced in, and the U.S. will no longer be able to go to a very low-interest rate environment. This would leave long rates in the 4% to 5% ‘box,’ with vacillations around those resistance and support points.

Given the very long duration profile, any move by 100 bps (i.e., 1%) results in a +/- 24% move in the ETF. So if 30-year rates were to move back down to 4%, expect a +24% gain in EDV. Conversely, the fund got demolished by the 2022 spike in long rates, being down over -55% since.

Buying an Individual Treasury Bond Outright Versus Buying EDV
What we want to highlight for investors in this section (especially individual investors) is the fact that buying EDV is not really the same as buying an individual treasury bond outright. Let us look at an example:

Buying a Treasury Bond With a Long Maturity Date

In this instance an investor would go to their brokerage account and source an individual treasury bond with a CUSIP that would have a maturity date close to the 25-year mark. Remember that while the Treasury does not issue 25-year bonds, they do issue 30-year ones; thus, as they come closer to maturity, they will eventually have 25-year tenors.

What does an investor get by pursuing this option (assuming holding to maturity):
• Defined cash coupons for the life of the holding (the bond will pay the same coupon every six months)
• Defined yield to maturity as calculated on day 1
• An ever-decreasing risk profile – after 10 years of holding the bond, the maturity would have dropped to 15 years; thus, the risk is lower (duration risk)
• A volatility profile that decreases every year (i.e., propensity for the mark-to-market of the bond to move around)

If we look at CUSIP 912810TV0, we can see the maturity date in 2053, a price close to par but at a discount, and a coupon of 4.75%. Buying this bond here would lock in a cash flow equivalent to notional times 4.75% divided by two, received every six months. The yield to maturity is slightly higher at 4.93%, but it would mostly come when the bond matures (the bond trades at 97.28, and you would get 100 principal back upon maturity). Irrespective of what rates do going forward, an investor would still get 4.75% times the notional purchased for the life of the bond.

Buying an ETF Like EDV

EDV is a fund available on all brokerage platforms, but buying this name comes with a different risk profile than buying a bond outright. An investor pursuing this option would get the following:
• Variable coupons for the ETF
• Variable dividend yields
• A constant risk profile by maintaining a 24-year duration
• The same volatility profile, with no step-down

EDV is more of an instrument geared towards trading purposes, whereas buying the bond outright achieves a cash-flow-centric scenario. When buying a bond outright, an investor cares only about the yield to maturity on day 1 and the semi-annual coupons received. Also note that Treasury Bonds pay semi-annually, while EDV pays quarterly.

Risks for the ETF

The main risk factor for this ETF is represented by rising inflation and growth. If inflation were to re-accelerate and the Fed were to raise rates again, the fund would lose money via its duration profile. In an environment where economic growth is still robust and inflation goes up, the Fed will be forced to move rates up, which will result in losses.

Key Advantages and Disadvantages

Advantages:
• Exposure to the long end of the yield curve
• Ability to use options (the ETF has a chain of put and call options)
• Ability to construct complex trades (2-year treasuries vs. long-dated treasuries)
• High daily trading volume and liquidity
• Specifically crafted duration profile via STRIPS

Disadvantages:
• High volatility profile