What happened?

Some shareholders of Seatrium were surprised to see the stock trading at a much higher price today. From a closing price of S$0.091 on 6 May 2024, the share price of Seatrium opened to trade at S$1.81 today. The share price of Seatrium rose through the day to close at S$1.94 on 7 May. Source: SGX   As a background, Seatrium announced previously that it will consolidate 20 shares into 1 share that are held by shareholders. Thereafter, it also announced a comprehensive transformation roadmap during its Investor Day, as well as a a share buyback programme. This will make Seatrium one of the Singapore companies currently undergoing a transformation, together with Starhub and SingPost.  If you hold 10,000 shares in Seatrium before the exercise, you will own 500 shares after the consolidation exercise.  I saw some questions in the Beansprout community asking how the share consolidation...