Abstract: STAR50 rebalance will be effective on 14 Sep 2026 before market open, with 5 ADDs and 5 DELETEs. Four of the five ADDs gained at the post-announcement open, and all five then fell over the rest of the bridge. AVIC Chengdu UAS was the only DELETE to gain. Historically, ADDs with a negative bridge averaged higher first-week returns than ADDs with a positive bridge. DELETEs with a negative bridge mostly kept falling in the first implementation week.
RAYTRON TECHNOLOGY, CATHAY BIOTECH, AVIC (CHENGDU) UAS, EVERDISPLAY OPTRONICS (SHANGHAI), Bestechnic, APT MEDICAL, SICHUAN HUAFENG TECHNOLOGY, BEIJING E-TOWN SEMICONDUCT, ARASHI VISION, SJ SEMICONDUCTOR COR
Research on index reviews and inclusion events across Asia Pacific, including MSCI, Hang Seng (HSI, HSCEI, HSCI), HS TECH, CSI 300, STAR50, NIFTY and Stock Connect changes. Coverage runs from rebalance forecasts through post-announcement positioning, pre-implementation updates and post-implementation reviews, using the price patterns of past events.
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