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Top Stock Market Highlights of the Week: SGX Retakes regional Crown, Keppel’s M1 Deal Collapses, Singapore’s AI Strategy Update, JustCo’s SGX Debut, and UOB’s S$387m Property Divestment
By The Smart Investor  •  May 23, 2026
It’s been a historic week on the SGX. Singapore has officially dethroned Indonesia to become Southeast Asia’s largest stock market, with the STI hitting fresh highs. But that’s not all that’s shaking up the local landscape. From the dramatic, last-minute collapse of Keppel’s S$1.43 billion M1 deal, to a massive national AI refresh backed by tech giants OpenAI and Google, and the buzzworthy SGX debut of co-working pioneer JustCo – we have plenty to unpack.

M1 Sale Formally Terminates After IMDA Probe

Keppel Ltd (SGX: BN4) has let its S$1.43 billion cash deal to sell M1’s telecom operations to Simba Telecom lapse. Following the passing of the May 21 long-stop date, Simba’s parent company, Australia-listed Tuas Limited (ASX: TUA), announced on the ASX that both parties have been formally released and discharged from their respective obligations under the sale and purchase agreement. The transaction collapsed after the Infocomm Media Development Authority (IMDA) suspended its regulatory review on 18 May 2026 to...
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By The Smart Investor
The Smart Investor is co-founded by David Kuo, Joanna Sng, and Chin Hui Leong. The company was formed in late 2019 from the ashes of the Motley Fool Singapore. The Smart Investor believes that everybody can learn how to invest, smartly. We aim to educate people on how to invest smartly by providing investing education, stock commentary and market coverage for Singapore and around the world.
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