NaITO's share price surged following its earnings announcement on 28 September. The first-half results showed a 276.86% change in ordinary profit, with the announcement date and share-price gain reported together.
Kabutan News reports that NaITO (code 7624.T) was identified as an earnings positive-impact stock, as an example of a share price reacting to the company's earnings.
According to the published information, NaITO is listed on the Tokyo Stock Exchange Standard Market, not the Tokyo Stock Exchange Mothers Market, and its share-price gain was calculated at +17.06% as of 9:27 on the 29th, based on the change from the day before the earnings announcement. The announcement date was 28 September, the reporting period was the first half, and the change in ordinary profit was 276.86.