Japan's Investment Trusts Just Set a Record ¥626.3bn Weekly Net Sale — Breaking a Record Set Only a Month AgoA · FULL TRANSLATION

Alongside its weekly investor-type data, JPX publishes a slim 'records' file that only has content when a historical record breaks. The July 16 edition carries three entries, all pointing the same way: investment trusts net sold ¥626.3bn on TSE Prime in July week 2 (Jul 6-10) — the largest weekly net sale on record — surpassing the previous record of ¥551.1bn set only in June week 3, 2026. The two-market total (¥627.3bn) also set a new record. The swing is as striking as the level: trusts were net buyers of ¥64.6bn just one week earlier, a one-week reversal of nearly ¥700bn. In the shin-NISA era, the trust sector's mechanical monthly inflows have made it a structural buyer, so record-scale net selling means redemptions or portfolio shifts large enough to overwhelm all of that — twice in one month. Motives are outside the statistics; candidate explanations include profit-taking redemptions and large-fund rebalancing, pending confirmation from the Investment Trusts Association's monthly flow data. The counterparty was foreign investors, who bought a net ¥517.2bn the same week — domestic funds handing inventory to overseas buyers near the highs. The records file appears every fourth business day and is usually empty; it is the cheapest anomaly detector in Japanese equities.