Abstract: CSI added four stocks and deleted four in the Jun 2026 STAR50 rebalance. The first implementation week and weeks 2 to 4 are complete. Every ADD rose through the first implementation week, vs the historical fade, and most of the cohort kept the gain through weeks 2 to 4. Most DELETEs fell in the first week, in line with history. SICC rallied vs its negative-bridge base rate before a reversal in weeks 2 to 4, and the historical weeks 2 to 4 rebound did not appear.
MGI TECH, SICC, XIAMEN AMOYTOP BIOTECH, HUA HONG SEMICONDUCTOR, SANY RENEWABLE ENERGY, YUANJIE SEMI, MOORE THREADS TECHNOLOGY, METAX INTEGRATED CIRCUITS
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