Quick Verdict
- Our Rating: ★★★½☆ (3.5 out of 5)
- Best For: Investors who want highly liquid, pure long-duration U.S. Treasury exposure for rate-sensitive hedging or tactical positioning
- Not Ideal For: Cost-focused buy-and-hold investors, short-horizon investors, and anyone uncomfortable with large price swings
- Expense Ratio: 0.15%
- Our Take: TLT is the largest and most liquid way to own 20+ year Treasuries, with no credit risk and a 5.30% SEC yield. However, its 15.0-year duration contributed to an 8.44% annualized loss over five years, and cheaper long-term Treasury ETFs exist.
Table of Contents
What Is the iShares 20+ Year Treasury Bond ETF (TLT)?
If you are asking what is TLT ETF, it is an open-end exchange-traded fund issued by BlackRock’s iShares that holds long-dated U.S. Treasury bonds. The fund tracks the ICE U.S. Treasury 20+ Year Bond Index, which covers Treasury securities with at least 20 years remaining until maturity. It launched on July 22, 2002, which makes it one of the longest-running Treasury ETFs available.
As of November 2026, the fund held 47 bonds, carried an average duration of 15.0 years, and managed roughly $47.5 billion in assets. Because every holding is backed by the U.S. government, average credit quality is AA, and the main risk is sensitivity to interest rates rather than default. The fund distributes income monthly and charges an expense ratio of 0.15%. Investors commonly use it to express a view on interest rates, to diversify equity-heavy portfolios, or to earn income from long-term government debt.
TLT ETF Key Facts
| Item | Detail |
|---|---|
| Full name | iShares 20+ Year Treasury Bond ETF |
| Ticker | TLT |
| Issuer | BlackRock / iShares |
| Index | ICE U.S. Treasury 20+ Year Bond Index |
| Inception date | July 22, 2002 |
| Expense ratio | 0.15% |
| AUM | $47.5 billion |
| Average volume | ~40 million shares/day (3-month average) |
| Dividend yield | 4.76% (12-month trailing); 5.30% SEC yield (30-day, as of Oct 22, 2026) |
| Dividend frequency | Monthly |
| Structure | Open-end fund |
TLT ETF Performance
TLT’s results reflected the sharp rise in interest rates that began in 2022. The fund returned -8.88% over one year, -0.09% annualized over three years, -8.44% annualized over five years, and -2.78% annualized over ten years. Over the same periods, the ICE U.S. Treasury 20+ Year Bond Index posted -8.8%, +0.0%, -8.4%, and -2.7%.
| Period | TLT | ICE U.S. Treasury 20+ Year Bond Index |
|---|---|---|
| 1 year | -8.88% | -8.8% |
| 3 years (annualized) | -0.09% | +0.0% |
| 5 years (annualized) | -8.44% | -8.4% |
| 10 years (annualized) | -2.78% | -2.7% |
The fund trailed its benchmark by roughly 0.04 to 0.09 percentage points across these periods. That gap is broadly consistent with its 0.15% expense ratio plus minor trading effects, though the index figures are rounded to one decimal place, so the exact difference is approximate. The five-year result showed how long-duration bonds lost substantial value when yields climbed, even as the fund kept paying monthly income. The near-flat three-year figure appeared to reflect income largely offsetting price declines over that stretch. Past performance is not a guarantee of future results, and these returns say little about how the fund may behave under different rate conditions.
TLT Top Holdings and Sector Breakdown
| Holding | Weight |
|---|---|
| US Treasury Bond 4.75% (May 15, 2055) | 4.33% |
| US Treasury Bond 4.63% (May 15, 2054) | 4.13% |
| US Treasury Bond 5.00% (May 15, 2056) | 4.07% |
| US Treasury Bond 4.75% (Nov 15, 2053) | 4.02% |
| US Treasury Bond 4.25% (Feb 15, 2054) | 3.93% |
| US Treasury Bond 4.13% (Aug 15, 2053) | 3.92% |
| US Treasury Bond 4.63% (Nov 15, 2055) | 3.89% |
| US Treasury Bond 4.25% (Aug 15, 2054) | 3.88% |
| US Treasury Bond 4.75% (Feb 15, 2056) | 3.87% |
| US Treasury Bond 4.63% (Feb 15, 2055) | 3.84% |
| Sector | Weight |
|---|---|
| U.S. Treasury bonds (maturities of 20+ years) | 100% |
The index is market-value weighted, so larger Treasury issues carry more influence. The top 10 positions made up about 39.9% of assets across 47 holdings, which is a moderate level of concentration for a fund of this size. Because every holding is a U.S. Treasury, single-issuer credit risk is not a factor, and the sector breakdown is simple: 100% government bonds. The more meaningful concentration is in maturity. The largest positions cluster between 2053 and 2056, with coupons ranging from 4.13% to 5.00%, which keeps the portfolio tightly focused on the long end of the yield curve and explains its sensitivity to rate changes.
TLT ETF Pros and Cons
Pros
- No credit risk: Every holding is a U.S. Treasury, and average credit quality is AA.
- Deep liquidity: With about $47.5 billion in assets and roughly 40 million shares trading daily, positions are generally easy to enter and exit.
- Pure long-duration exposure: A 15.0-year average duration gives investors a direct, concentrated way to gain exposure to long-term rates.
- Meaningful income: The fund posted a 4.76% trailing yield and a 5.30% SEC yield, paid monthly.
- Long track record: The fund has operated since 2002 and has been through multiple interest rate cycles.
Cons
- Higher fee than peers: At 0.15%, TLT costs five times as much as the 0.03% charged by several competing long-Treasury ETFs.
- High rate sensitivity: The 5-year annualized return of -8.44% showed how sharply the fund reacted to rising yields.
- Tax treatment: Interest distributions are generally taxed as ordinary income at the federal level.
- Narrow maturity range: The fund holds only 47 bonds, all beyond 20 years, so it offers no diversification across the yield curve.
Who Should Invest in TLT?
Is TLT a good investment? It depends on the investor’s goals, time horizon, and tolerance for volatility.
TLT may be a good fit if you:
- Want liquid, high-quality long-duration exposure for a tactical view on interest rates
- Are building a portfolio that deliberately pairs equities with long-term government bonds
- Prefer monthly income from Treasury securities without credit risk
- Trade frequently and place a high value on tight execution and deep liquidity
- Understand duration risk and could hold through large price swings
TLT may not be ideal if you:
- Are highly cost-sensitive and plan to hold for many years, since lower-fee alternatives exist
- Need stable principal over a short time horizon
- Want broad exposure across short, intermediate, and long maturities
- Are uncomfortable with an investment that fell 8.88% in a single year
TLT Alternatives
| ETF | Expense Ratio | AUM | Key Difference |
|---|---|---|---|
| Vanguard Long-Term Treasury ETF (VGLT) | 0.03% | ~$15 billion | Holds Treasuries with maturities of 10+ years, so duration is generally lower |
| SPDR Portfolio Long Term Treasury ETF (SPTL) | 0.03% | ~$10.6 billion | Tracks the Bloomberg Long U.S. Treasury Index, also 10+ years |
| Vanguard Extended Duration Treasury ETF (EDV) | 0.05% | ~$4.1 billion | Holds 20-30 year zero-coupon Treasury STRIPS with much higher rate sensitivity |
VGLT costs 0.03% and includes bonds with 10 to 20 years remaining, which typically lowers volatility relative to TLT’s 20+ year focus. Its trade-off is a smaller asset base and lower trading volume. SPTL has the same fee and a similar 10+ year mandate, with roughly $10.6 billion in assets and a Bloomberg index rather than an ICE index. EDV pushes further out the curve with 20-30 year zero-coupon Treasury STRIPS, which amplifies both gains and losses, and it pays distributions quarterly rather than monthly. Investors who want the same long-end exposure as TLT at a lower cost may compare these funds, while those who prioritize liquidity may still favor TLT.
Related reading: [VGLT ETF Review] | [SPTL ETF Review] | [Best Bond ETFs]
Frequently Asked Questions
Is TLT a good long-term investment?
That depends on your goals and risk tolerance. TLT returned -2.78% annualized over ten years, so long-term holders experienced price declines even with income included. It may suit investors who want long-duration Treasuries as a diversifier, but less so those seeking stable principal.
How often does TLT pay dividends?
TLT pays distributions monthly. The 12-month trailing yield was 4.76%, and the 30-day SEC yield was 5.30% as of October 22, 2026. Monthly amounts can vary.
What is the difference between TLT and VGLT?
TLT holds Treasuries with 20+ years to maturity and charges 0.15%, while VGLT holds Treasuries with 10+ years and charges 0.03%. TLT is larger ($47.5 billion versus roughly $15 billion) and more heavily traded, while VGLT’s 10-20 year bonds generally give it a lower duration.
Can I lose money investing in TLT?
Yes. TLT returned -8.88% over the past year and -8.44% annualized over five years. Although U.S. Treasuries carry minimal credit risk, the fund has no maturity date, so its share price rises and falls with interest rates. ETF shares are not FDIC insured.
How sensitive is TLT to interest rate changes?
With an average duration of 15.0 years, a common rule of thumb is that the fund’s price moves roughly 15% in the opposite direction for each 1 percentage point change in yields, all else equal. This is an illustration of the math, not a forecast.
Data as of November 2026. Sources: issuer websites and finance.yahoo.com.
Disclaimer: The information in this article is for educational and informational purposes only. It does not constitute financial, investment, or tax advice. Past performance is not indicative of future results. Investing in ETFs involves risk, including possible loss of principal. Always consult a qualified financial advisor before making investment decisions.