Singapore Tops Indonesia as Biggest Southeast Asia Stock Market

dcm[i1vnh9n]atatn8wfpile_media_dl_1.png Bloomberg, World Bank

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(Bloomberg) — Singapore has overtaken Indonesia as Southeast Asia’s largest stock market, signaling investors’ endorsement of the city-state’s market reforms and their diminishing confidence in the larger country’s economic management. 

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Singapore’s market capitalization has climbed to $645 billion, while that of Indonesia has fallen by more than 30% from a peak in January to $618 billion, according to data compiled by Bloomberg.

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The city-state’s shares have benefited from economic and political stability, as well as government-led initiatives aimed at reviving a previously lackluster equity market. In contrast, investor sentiment has soured toward Indonesia in recent months amid uncertainties over a potential equities reclassification to frontier markets, as well as credit rating outlook downgrades by Fitch Ratings Inc. and Moody’s Ratings. 

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“Wealth is a key driver for earnings growth and together with the strong Singapore dollar, we expect more funds to flow into the market,” said Carmen Lee, head of equity research at Oversea-Chinese Banking Corp. in Singapore.

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The Straits Times Index closed at a record high on Tuesday as investors sought defensive havens during volatility sparked by the Iran war. The benchmark dropped 0.5% Wednesday amid a broad Asia selloff as investors turned risk-off due to concern about quickening inflation.

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The island republic’s stocks are on course to outperform their Indonesian peers by the most on record in 2026, even as Singapore’s $660 billion economy trails Indonesia’s $1.5 trillion based on the International Monetary Fund’s figures.

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“Markets are recognizing that the Singapore equity market is a structural net beneficiary of geopolitical uncertainty, with expectation of continued safe haven flows benefiting the financial sector,” said Kenneth Ong, a portfolio manager at Lion Global Investors Ltd.

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Singapore has stepped up efforts in recent years to restore the appeal of its stock market, including a multi-billion-dollar program to encourage select funds to invest in local shares. 

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In addition, the city-state’s central bank tightened its monetary policy settings last month, becoming the first in Asia to respond to rising inflation risks from the energy price surge. The Singapore dollar’s resilience, outperforming Southeast Asian peers since the war’s onset, has also contributed to the market’s advance.  

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Meanwhile, foreign deposits in Singaporean banks climbed to S$659 billion ($514 billion)  in March, the highest level since records began in 2021, according to central bank data.

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A selloff of nearly $360 billion in Indonesian shares this year highlights the growing challenges facing President Prabowo Subianto as he tries to push through ambitious growth targets and restore investor confidence. Surging energy cost may weigh on consumer sentiment, while a weaker rupiah is making imported raw materials more expensive.