Heartseed shares surged in after-hours PTS trading to ¥2,662, up ¥202 (+8.21%) from the previous day. The opening price was ¥2,665, the high was ¥2,670 and the low was ¥2,650.1. Trading volume was 1,000 shares during the 23:00 hour, while trading value was approximately ¥2.659 million.
Heartseed's share price rose 8.21% from the previous day in after-hours PTS trading to ¥2,662. The opening price was ¥2,665, with the day's high at ¥2,670 and the low at ¥2,650.1. After-hours trading is conducted through J-Market, operated by Japan Next Securities, with the trading price and the change from the Tokyo Stock Exchange closing price shown together. After-hours trading volume was approximately 1,000 shares, with trading value of approximately ¥2.659 million.
According to Heartseed's financial results, revenue for the interim period of the fiscal year ending December 2026 was ¥467 million, operating loss was ¥622 million and interim net loss was ¥554 million. The increase in research and development expenses, including selling, general and administrative expenses, was the main cause of the loss, and the company forecasts a full-year operating loss of ¥2.27 billion. The company is therefore summarized as remaining in an upfront investment phase.