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"year_low_not_measured": true }, { "date": "2026-08-19", "name": "코스피 200", "name_en": "KOSPI 200", "family": "KOSPI시리즈", "family_en": "KOSPI Series", "constituent_count": 200, "is_computed_index": false, "close": 1012.61, "change": -69.39, "change_pct": -6.41, "open": 1023.7, "high": 1037.25, "low": 1003.46, "volume": 113607416, "trading_value_krw": 20729498337189, "market_cap_krw": 4952524028430130, "year_high": 1477.22, "year_high_date": "2026-06-22", "year_low": null, "year_low_date": null, "year_low_not_measured": true }, { "date": "2026-08-18", "name": "코스피 200", "name_en": "KOSPI 200", "family": "KOSPI시리즈", "family_en": "KOSPI Series", "constituent_count": 200, "is_computed_index": false, "close": 1082, "change": -16.18, "change_pct": -1.47, "open": 1125.72, "high": 1142.97, "low": 1068.52, "volume": 157016249, "trading_value_krw": 26931638093967, "market_cap_krw": 5267627761227250, "year_high": 1477.22, "year_high_date": "2026-06-22", "year_low": null, "year_low_date": null, "year_low_not_measured": true } ], "coverage": { "source": "Korea public data portal — daily index series (archive/raw/indices)", "built_at": "2026. 10. 28. 오후 5:24:08", "rows": 7812, "days": 46, "first_date": "2026-08-18", "last_date": "2026-10-26", "distinct_indices": 151, "day_breakdown": [ { "date": "2026-08-18", "indices": 168 }, { "date": "2026-08-19", "indices": 168 }, { "date": "2026-08-20", "indices": 168 }, { "date": "2026-08-21", "indices": 168 }, { "date": "2026-08-24", "indices": 168 }, { "date": "2026-08-25", "indices": 168 }, { "date": "2026-08-26", "indices": 168 }, { "date": "2026-08-27", "indices": 168 }, { "date": "2026-08-28", "indices": 168 }, { "date": "2026-08-31", "indices": 168 }, { "date": "2026-09-01", "indices": 168 }, { "date": "2026-09-02", "indices": 168 }, { "date": "2026-09-03", "indices": 168 }, { "date": "2026-09-04", "indices": 168 }, { "date": "2026-09-07", "indices": 168 }, { "date": "2026-09-08", "indices": 168 }, { "date": "2026-09-09", "indices": 168 }, { "date": "2026-09-10", "indices": 168 }, { "date": "2026-09-11", "indices": 171 }, { "date": "2026-09-14", "indices": 171 }, { "date": "2026-09-15", "indices": 171 }, { "date": "2026-09-16", "indices": 171 }, { "date": "2026-09-17", "indices": 171 }, { "date": "2026-09-18", "indices": 171 }, { "date": "2026-09-21", "indices": 171 }, { "date": "2026-09-22", "indices": 171 }, { "date": "2026-09-23", "indices": 171 }, { "date": "2026-09-28", "indices": 171 }, { "date": "2026-09-29", "indices": 171 }, { "date": "2026-09-30", "indices": 171 }, { "date": "2026-10-01", "indices": 171 }, { "date": "2026-10-02", "indices": 171 }, { "date": "2026-10-06", "indices": 171 }, { "date": "2026-10-07", "indices": 171 }, { "date": "2026-10-08", "indices": 171 }, { "date": "2026-10-12", "indices": 171 }, { "date": "2026-10-13", "indices": 171 }, { "date": "2026-10-14", "indices": 171 }, { "date": "2026-10-15", "indices": 171 }, { "date": "2026-10-16", "indices": 171 }, { "date": "2026-10-19", "indices": 171 }, { "date": "2026-10-20", "indices": 171 }, { "date": "2026-10-21", "indices": 171 }, { "date": "2026-10-22", "indices": 171 }, { "date": "2026-10-23", "indices": 171 }, { "date": "2026-10-26", "indices": 171 } ], "dropped_unparsable_lines": 0, "not_index_tape": "This endpoint is the dated history. /v1/index-tape is a single most-recent snapshot with English names and base-date fields. They are built from the same well but answer different questions.", "year_low_note": "The source prints 0 for a year-low it has not measured. A zero is impossible for an index, so those rows carry year_low:null with year_low_not_measured:true — never a low of zero.", "not_this": "These are published index levels, reproduced as filed. Not a forecast and not advice." } }