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Index Constituents

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What this utility is for

• expose index rosters only when OMNI has a documented public-source right to share them
• map constituent symbols into OMNI’s canonical entity graph when local coverage exists
• keep the broader index universe visible in the source inventory without pretending unsupported families are production-ready

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Current support posture

• NDX is the first fully supported index roster
• OMNI parses the public Nasdaq-100 companies page published by Nasdaq
• OMNI returns company name, ticker, rank order, rights metadata, provenance, and any canonical entity match already available in the local graph
• OMNI does not return weights for NDX because the public source page does not publish them

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Inventory-only indices

• SPX is tracked, but constituent export remains blocked pending index licensing
• UKX and SX5E are tracked in the source inventory, but rights and extraction posture are still under review
• inventory-only indices are intentionally visible in ops artifacts before they are exposed through the public API

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Rights model

• public_source_documented means the source page and public-shareability posture are documented
• public_source_review_required means OMNI tracks the official source but has not yet cleared public constituent export
• licensed_index_not_supported means OMNI will not expose the constituent roster until explicit licensing is in place

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Sync posture

• supported index rosters refresh from the documented source on a daily cadence
• export the current inventory with bun run ops:index-source-inventory

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Example

curl -H "x-api-key: $OMNI_DATASTREAM_API_KEY" \
  "https://api.secapi.ai/v1/market/indices/constituents?index=NDX&limit=10"