{"index":"MSTI","preview":true,"note":"Last 3 rows only. Paid endpoint returns up to 56 days with per-row signatures. Data cached — may be up to 60 minutes old.","data":[{"computedAt":1785247622,"value":33.68,"regime":"COUPLED","confidence":1,"datetime":"2026-07-28T14:07:02+00:00"},{"computedAt":1785247622,"value":33.68,"regime":"COUPLED","confidence":1,"datetime":"2026-07-28T14:07:02+00:00"},{"computedAt":1785247645,"value":33.61,"regime":"COUPLED","confidence":1,"datetime":"2026-07-28T14:07:25+00:00"}],"fetched_at":"2026-07-28T14:07:29.147930+00:00","preview_cached":true,"cache_max_age_minutes":60}