iShares 20+ Yr Treasury (TLT)
Long-duration Treasury bond ETF closing price ($, daily)
| Property | Value |
|---|---|
| Category | macro |
| Unit | $ |
| Resolution | 1d |
| Assets | MACRO |
| Tier | Basic |
| API Endpoint | GET /v1/macro/markets |
| Field | tlt |
Overview
Daily closing price of the iShares 20+ Year Treasury Bond ETF (NASDAQ: TLT). TLT holds a portfolio of US Treasury bonds with at least 20 years of remaining maturity, giving it the highest duration sensitivity among major Treasury ETFs (~17 years effective duration).
Interpretation
- Rising TLT: long-end Treasury yields are falling, often reflecting recession fears, flight to safety, or expectations of Fed easing.
- Falling TLT: long-end yields are rising, often reflecting growth optimism, fiscal-deficit risk, or term-premium expansion.
- TLT is the cleanest tradeable proxy for long-duration interest-rate exposure.
Use Cases
- Use as a tradeable proxy for
macro_ust_30yandmacro_ust_10ymovements. - Compare TLT performance versus BTC during macro regime changes — both are long-duration assets sensitive to real yields.
- Track ETF flows (sourced externally) to detect institutional rate-cycle positioning that often precedes BTC inflection points.
API Usage
curl -H "Authorization: Bearer YOUR_API_KEY" \
"https://api.blocklens.co/v1/macro/markets?start_date=2024-01-01&end_date=2024-12-31&limit=365"
Related Metrics
- 30-Year Treasury Yield — US 30-year Treasury constant maturity yield (%, daily)
- 10-Year Treasury Yield — US 10-year Treasury constant maturity yield (%, daily)
- Real 10-Year Yield — 10Y Treasury yield minus 12-month CPI YoY (%, daily)
- Fed Funds Target Rate — US federal funds upper-bound target rate (%, daily)