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TLT iShares 20+ Year Treasury Bond ETF
TLT is a Bonds ETF issued by BlackRock. It tracks the Bloomberg U.S. Long Treasury index, costs 0.15% a year, and launched in July 2002.
Composition last reviewed 2026-09-08; assets as of 2026-09-24.
Key facts
| Ticker | TLT |
|---|---|
| Full name | iShares 20+ Year Treasury Bond ETF |
| Issuer | BlackRock |
| Category | Bonds |
| Sub-category | Long Treasury |
| Index tracked | Bloomberg U.S. Long Treasury |
| Expense ratio | 0.15% |
| Assets under management | $46.93bn |
| Inception | 22 July 2002 |
| Asset class | Fixed Income |
| Region | US |
Sector allocation
- Treasury Bonds100%
Geographic exposure
United States vs international
- United States100%
Top holding
- 1US Treasury Bonds 20+ Years
Frequently asked
What is TLT's expense ratio?
iShares 20+ Year Treasury Bond ETF charges 0.15% a year — $15 on a $10,000 holding.
What index does TLT track?
iShares 20+ Year Treasury Bond ETF tracks the Bloomberg U.S. Long Treasury index.
How large is TLT?
Our dataset puts TLT at about $46.93bn in assets under management (as of 2026-09-24). Assets move with markets and flows, so treat this as a snapshot rather than a current figure.
What are TLT's largest holdings?
The largest holding in our dataset is US Treasury Bonds 20+ Years.