Japan Stock of the Day | Kabutaro & Friends

On September 16, 2026, the most talked-about Japanese stock online was Mercari <4385>.
Background: It topped the Tokyo Stock Exchange Prime Market's list of decliners, closing down 246 yen (-6.36%) at 3,621 yen. The stock has fallen about 29% over the past month from its year-to-date high of 5,111 yen set on August 10. On September 15, Mercari announced a temporary ban on listing popular items including unopened "Pokemon Card Game 30th CELEBRATION" packs, seen as an anti-resale and anti-fraud measure. However, selling pressure mounted as this came on top of a string of headwinds since early September: accusations of fraudulent listings, rumors of money laundering circulating online, and a rating downgrade to "neutral" by Macquarie. The company's underlying results remain strong, with record profit for the fiscal year ended June 2026.