{"schemaVersion":1,"symbol":"CHT","days":90,"observations":[],"dailyIv":[{"symbol":"CHT","date":"2026-10-20","iv_pct":34.54336960948267,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-11-20","call_iv_pct":54.56865428183053,"put_iv_pct":50.737985611510794},{"expiry":"2026-12-18","call_iv_pct":39.340963855421684,"put_iv_pct":45.62074491644856},{"expiry":"2027-03-19","call_iv_pct":25.079314878892735,"put_iv_pct":22.509496286729096},{"expiry":"2027-06-17","call_iv_pct":19.64823329558324,"put_iv_pct":18.84156374944469}],"source":"ThetaData EOD Greeks","provider_symbol":"CHT","calendar_adjustments":[{"expiry":"2027-06-17","friday":"2027-06-18"}],"calendar_source":"ThetaData year_holidays","source_hash":"94e69531e5da4d8c2ac49f03605cc362122048b2d6f53a961da94105538370ee","captured_at":"2026-10-22T14:08:41.344031+00:00"}],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":[],"url":"https://intraalpha.com/companies/CHT","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"}}