On July 28, Costco rose 3.2% in regular trading, trading at $984.26/share, with turnover of $823 million. Multiple strategic initiatives converged to drive investor optimism.

On the news front, Costco announced an exclusive e-commerce partnership with JD.com, making JD.com its sole official online retail partner in China. The collaboration opens online shopping to non-members across mainland China, with the minimum order threshold lowered from 199 yuan to 99 yuan and nationwide delivery coverage. The JD.com flagship store has already attracted over 220,000 followers since its soft launch in May.

Separately, Costco disclosed plans to open standalone gas stations to boost sales. The first location opened in Southern California in June, with a second planned in Honolulu. This initiative builds on record-breaking fuel volumes reported in fiscal Q3, when the final five weeks became the company's highest-volume weeks ever amid elevated gasoline prices driven by Middle East tensions.

The broader hypermarket sector showed notable strength, with BJ's Wholesale Club up 3.92%, Target up 3.88%, and Walmart up 3.58%, reflecting broad sector momentum.

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