MSCI raises Taiwan weights; TSMC rises to 58.33% of MSCI Taiwan Index

MSCI's quarterly review raised Taiwan's weight in its Emerging Markets and All-Country Asia ex-Japan indexes, effective after the May 29 close. Within the MSCI Taiwan Index, TSMC's weight rose 0.56 points to 58.33%, the largest increase in that index. Passive funds that track these benchmarks rebalance to match, so TSMC gets the biggest share of that buying, although the Taiwan Stock Exchange said the changes are not a direct signal of future flows.

• Taiwan weight in MSCI Emerging Markets up 0.30 points to 23.76%
• Taiwan weight in MSCI All-Country Asia ex-Japan up 0.37 points to 27.16%
• TSMC weight in MSCI Taiwan Index up 0.56 points to 58.33%
• Changes effective after the May 29, 2026 close; MSCI Taiwan constituents fall from 83 to 77