Montage Technology’s Hong Kong shares surged 17%, creating a 40% premium over
its Shanghai stock, overtaking CATL as the most expensive dual-listed company.
Strong AI chip demand drove the gap, while peer Gigadevice holds a 35% premium.
CATL’s lead narrowed to 26% after a $5 billion share sale increased supply, down
from a March peak of 49% supported by energy storage optimism.
