Abstract: HSI rebalance will be effective on 7 Sep 2026 before market open, with two ADDs. Hua Hong Grace returned -4.4% and Weichai Power -3.8% over the bridge. Both fell on the first trading day after announcement, then recovered part of the loss. Historically, negative-bridge ADDs declined in the first implementation week in most cases. Both names belong to that group.
HUA HONG SEMI, WEICHAI POWER
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