CATL, the world’s largest maker of electric-vehicle batteries, is expanding production, while Honda is cutting spending plans. Oddly, both stocks are up.

Shares of Contemporary Amperex Technology Co., or CATL, soared more than 16% in their Hong Kong trading debut Tuesday after the Chinese electric vehicle battery maker raised more than $4.5 billion in its secondary listing.

Shares in CATL closed 16% higher on their Hong Kong debut on Tuesday after the Chinese electric vehicle battery giant raised $4.6 billion in the world's largest listing this year, boosting prospects for equity sales by Chinese companies.