TLT Options Data API for ETF chains, expirations, quotes, trades, and Greeks
Use CuteMarkets to build TLT options workflows around the iShares 20+ Year Treasury Bond ETF: live chain snapshots, listed expirations, contract snapshots, quote/trade context, Greeks, and open interest from one API surface.
Why teams use it
What TLT options workflows usually need
ETF option chains
Pull TLT calls and puts by expiration and inspect strikes, moneyness, Greeks, IV, and open interest together.
Expiration-aware requests
Fetch listed TLT expiration dates before requesting chains or contracts so scanners do not depend on hard-coded calendars.
Quote and trade context
Use bid/ask and trade history for liquidity checks instead of treating every TLT contract as equally tradable.
Single-contract snapshots
Inspect one contract with break-even, day stats, Greeks, latest quote, latest trade, and underlying context.
Historical research path
Pair contract discovery with historical quote, trade, and aggregate data for more realistic ETF options backtests.
Not ETF holdings data
This page is intentionally about ETF options market data, not ETF constituent or holdings files.
Use cases
What you can build with this options data API
TLT chain explorers
Build a focused TLT option chain view with expiration filters, open interest sorting, and Greeks columns.
TLT scanners
Rank contracts by liquidity, spread, IV, delta, and rates exposure, duration-sensitive moves, and volatility context.
Backtesting and research
Reconstruct historical TLT option setups with contract, quote, trade, and aggregate context.
Risk dashboards
Show TLT exposure, option sensitivity, and expiry concentration inside internal tools.
Developer examples
Two code paths teams usually need first
curl "https://api.cutemarkets.com/v1/options/chain/TLT/?expiration_date=2026-05-15&limit=25" \
-H "Authorization: Bearer YOUR_API_KEY"curl "https://api.cutemarkets.com/v1/tickers/expirations/TLT/" \
-H "Authorization: Bearer YOUR_API_KEY"Evaluate and compare
Why chain snapshots alone are not enough
Focused endpoint pages are useful because most teams do not evaluate an options data API in the abstract. They evaluate one workflow first, then expand into chains, contracts, quotes, trades, and expirations.
Options data API
Start from the canonical product page for the full live and historical surface.
Historical options data API
See how contracts, quotes, trades, aggregates, and expirations fit together for research.
Best options data APIs
Compare provider evaluation criteria before committing to a data stack.
Docs to open next
Relevant API docs
Tutorials and research
Related articles
Backtest options without stale contracts
See why contract discovery with historical dates matters before a backtest is trusted.
Why option quotes beat last price
Understand bid/ask context, last-sale gaps, and quote-aware research workflows.
Quote-aware options fills
A research-to-product bridge from the CuteMarkets backtesting work.
FAQ
Common questions about this options data API
Does CuteMarkets provide TLT ETF holdings data?
No. This TLT page is about ETF options market data: chains, expirations, contracts, quotes, trades, Greeks, snapshots, and open interest. It is not a fund-holdings or ETF constituents API.
Does CuteMarkets provide both real-time and historical options data?
Yes. CuteMarkets supports real-time snapshots and historical workflows across contracts, trades, quotes, aggregates, and expirations, with plan-specific live or delayed access.
Do you provide quotes, trades, and historical contracts?
Yes. The platform includes contracts, chain snapshots, contract snapshots, trade history, quote history, aggregates, and expiration lookups for U.S.-listed options.
Do you provide the earnings calendar too?
CuteMarkets provides the options data layer. Earnings timing should come from a dedicated earnings calendar source that you combine with the options data.
Build TLT options workflows without a separate holdings project
Start from TLT expirations and chain data, then add quotes, trades, snapshots, and historical context as the workflow becomes more execution-aware.
Canonical URL: https://cutemarkets.com/tlt-options-data-api/