{"slug":"how-often-mutual-funds-change-holdings","qid":"corporate_actions","label":"corporate_actions","post_title":"how-often-mutual-funds-change-holdings","post_url":"/blog/how-often-mutual-funds-change-holdings#q-corporate_actions","columns":["month","stock_splits","new_listings"],"rows":[{"month":"2025-08","stock_splits":115,"new_listings":27},{"month":"2025-09","stock_splits":150,"new_listings":32},{"month":"2025-10","stock_splits":120,"new_listings":41},{"month":"2025-11","stock_splits":99,"new_listings":24},{"month":"2025-12","stock_splits":177,"new_listings":31},{"month":"2026-01","stock_splits":90,"new_listings":36},{"month":"2026-02","stock_splits":113,"new_listings":47},{"month":"2026-03","stock_splits":191,"new_listings":17},{"month":"2026-04","stock_splits":129,"new_listings":30},{"month":"2026-05","stock_splits":142,"new_listings":40},{"month":"2026-06","stock_splits":162,"new_listings":35},{"month":"2026-07","stock_splits":164,"new_listings":34},{"month":"2026-08","stock_splits":124,"new_listings":24}],"shape":"series","sql":"SELECT\n    month,\n    sumIf(events, kind = 'split')       AS stock_splits,\n    sumIf(events, kind = 'new_listing') AS new_listings\nFROM\n(\n    SELECT\n        formatDateTime(execution_date, '%Y-%m') AS month,\n        'split'                                 AS kind,\n        countDistinct(ticker)                   AS events\n    FROM global_markets.stocks_splits\n    WHERE execution_date >= toStartOfMonth(today() - 400)\n      AND execution_date <  toStartOfMonth(today())\n    GROUP BY month\n\n    UNION ALL\n\n    SELECT\n        formatDateTime(listing_date, '%Y-%m') AS month,\n        'new_listing'                         AS kind,\n        countDistinct(ticker)                 AS events\n    FROM global_markets.stocks_ipos\n    WHERE listing_date >= toStartOfMonth(today() - 400)\n      AND listing_date <  toStartOfMonth(today())\n    GROUP BY month\n)\nGROUP BY month\nORDER BY month","computed_at":"2026-09-28T15:54:47.963438+00:00","elapsed":0.319174606}