What Is TLH? iShares 10-20 Year Treasury Bond ETF

Treasury ETFs cluster around conventional maturity buckets: bills, one-to-three years, three-to-seven, seven-to-ten and twenty-plus. Ten to twenty is the least populated of them, largely because the Treasury stopped issuing thirty-year bonds between 2001 and 2006, leaving a supply hole that took years to fill. Bonds that were once thirty-year issues age into this band, which is where much of TLH's inventory comes from.

The practical effect is that TLH gives more rate sensitivity than a ten-year fund and materially less than a fund of thirty-year bonds. An investor wanting to extend duration without taking the full swing of the long bond has a middle setting available here. That is the whole argument for the fund, and it is a narrow one, which is why $11.3 billion is modest next to the funds either side of it.

The bonds themselves are conventional. There is no leverage, no currency exposure and no derivative overlay, and every holding is a direct obligation of the US Treasury. What distinguishes TLH from its neighbours on the curve is the maturity band and nothing else, which makes the choice between them a straightforward decision about how much interest rate sensitivity is wanted.

The 4.44% distribution reflects the coupons of the bonds currently held, not a promised return. As older bonds mature out and new ones enter, the distribution moves with prevailing rates. Because every holding is a Treasury obligation, none of that yield is compensation for credit risk; it is entirely compensation for time.

Price behaviour is the other half. A fund of ten-to-twenty-year bonds moves a long way when yields shift, in either direction. Rising yields push the price down and lift the income the fund can reinvest at; falling yields do the reverse. Anyone using TLH needs to be comfortable with that price movement, because at this maturity the capital swing typically dwarfs a single year of coupons.

Holding to a fixed date does not help in an ETF the way it does with an individual bond. TLH never matures. It continuously sells bonds that fall below ten years remaining and buys longer ones, so it maintains its maturity band indefinitely rather than converging to par.

TLH suits a portfolio that wants Treasury exposure with meaningful duration, either as a deliberate rate position or as an intended counterweight to equity risk. It also suits liability matching over a roughly ten to twenty year horizon better than a broad aggregate bond fund does, because the maturity band is defined rather than blended.

It is the wrong instrument for a cash reserve or an emergency fund, where price movement of this size is intolerable. It is the wrong instrument for someone who wants yield above what Treasuries pay, since there is no credit exposure here to generate it. And an investor who already owns a core aggregate bond fund holds Treasuries of various maturities inside it, so adding TLH is a duration decision rather than a diversification one.

Approximate weights as of August 2026. Each ticker links to its individual stock guide in Walnut.

There are three common ways to get TLH exposure. Buy shares (or fractional shares) of TLH directly at any major broker that lists it. Hold it as a core position and layer more concentrated ideas on top. Or build it into a thematic portfolio in Walnut, so TLH sits alongside other holdings that express the same thesis, with target weights you can rebalance toward. TLH trades like a stock during market hours, so you buy it the same way you would any listed share.

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Whether TLH is a good buy depends less on any single call and more on your time horizon and what you already hold: it tracks an index of US Treasury bonds with remaining maturities between ten and twenty years, so the real question is whether you want that exposure in your mix and at what weight. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is TLH a buy?

TLH gives you an index of US Treasury bonds with remaining maturities between ten and twenty years exposure in one ticker at a 0.15% expense ratio. Most investors use it as a core holding and layer more concentrated thematic portfolios on top.

Whether TLH is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is TLH a buy?

TLH yields 4.44% as of August 2026, paid by passing through the dividends of its underlying holdings. For the payout schedule, history, and how the distributions are taxed, see TLH dividend: yield and schedule.

New to funds like TLH? Start with what an ETF is, then how to buy an ETF, or browse the full guide to ETF investing.