Singapore shares closed marginally higher on Wednesday, with most markets ending mixed as regions respond to an AI-fueled bubble and persistent uncertainty over US interest rates.

The Straits Times Index, a key benchmark for the Singapore Exchange, ranged between 4,493.36 and 4,519.72 throughout the day. It ended the session at 4,505.22, up 0.55 points or 0.01%.

In corporate news, shares of Yangzijiang Maritime Financial (SGX:8YZ) closed nearly 3% lower a day after its debut on the Singapore Exchange.

Alset's shares were up over 4% after its subsidiary, LiquidValue Development, changed its name to Winning Catering.

Meanwhile, shares of LHN Group (SGX:41O, HKG:1730) were up over 1% after the company forecasted a lower pre-tax net profit for the fiscal year ended Sept. 30.

STI up 0.01%; Yangzijiang Shipbuilding up 3%; Seatrium, Sheng Siong up 1%; Genting Singapore fell 3%; Nio, Sembcorp fell 1%.