Singapore's stock market closed in black on Wednesday, as global markets logged mixed results despite US trading partners vowing to retaliate against US President Donald Trump's tariff actions.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 3,854.97 and 3,883.02 throughout the day. It ended the session at 3,874.62, up 13.86 points or 0.36% compared to Tuesday's close.

Seatrium up 6.5% to a new record high; Yanlord Land up 5.9%; YZJ Shipbldg up 3.4%; SingPost fell 1.8%

In company news shares of, Asia-Pacific Strategic Investments (SGX:5RA) surge 100% even though the company swung to a loss attributable to equity holders of SG$1.2 million in the fiscal first half ended Dec. 31, 2024, from an attributable profit of SG$90,000 a year earlier.

Shares of Alliance Healthcare Group (SGX:MIJ) plunged over 19% at the close after the company's profit attributable to owners of the parents for the half year ended Dec. 31, 2024 dropped 73% to SG$292,100 from SG$1.1 million a year earlier.

Meanwhile, Wing Tai Holdings (SGX:W05) closed flat as its profit attributable to equity holders declined 51% in the fiscal first half ended Dec. 31, 2024 to SG$10.1 million from SG$20.5 million a year earlier, a filing with the Singapore Exchange said on Tuesday.