{"schemaVersion":1,"symbol":"TLT","days":90,"observations":[{"symbol":"TLT","expiry":"2026-11-20","observed_at":"2026-10-19T20:04:33.352000+00:00","captured_at":"2026-10-20T03:55:10.979Z","last_trade_at":"2026-10-19T23:54:17.786086516Z","price":79.52,"iv_pct":14.025281854515523,"implied_move_pct":3.3452241662504543,"put_call_skew_pp":2.0992853444804505,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/TLT","source_hash":"cd59e429b218691aaf915868aa42b592a8a74f1eb921d82d747719ca431921c0"}],"truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/TLT","methodology":"https://intraalpha.com/resources/options-delta-methodology","units":{"iv_pct":"annualized percent","implied_move_pct":"percent of underlying price","put_call_skew_pp":"percentage points","price":"USD"}}