Southeast Asia (ASEAN)
Southeast Asia (ASEAN): regime score, economic regime, capital flows, currency outlook and FX-adjusted returns for Singapore, Indonesia, Thailand, Malaysia, Vietnam, from the latest weekly snapshot.
Regime scorecard
Neutral regime, score −2 (Balanced); accelerating economy; capital flows outflows increasing; geopolitical risk moderate. Strongest: economic momentum (+37), valuation & stability (+8). Weakest: capital flows (-40), geopolitics (-15).
| Factor | Weight | Score |
|---|---|---|
| Economic momentum | 30% | +37 |
| Capital flows & liquidity | 25% | −40 |
| Market performance | 20% | −6 |
| Geopolitical conditions | 15% | −15 |
| Valuation & stability | 10% | +8 |
IMF real GDP growth: 4.9% (2026), 4.7% (2027). Inflation 3.0%, policy rate 3.09%. Relative strength vs MSCI ACWI over 3 months: −5.2 pp. Currency (SGD) score +8, 1-year outlook → / ↑.
Countries
| Country | Regime | Score | Economy | Capital flows | Geopolitical risk |
|---|---|---|---|---|---|
| Thailand | Neutral | +18 | Expanding | Inflows increasing | Moderate |
| Singapore | Neutral | +16 | Expanding | Stable | Low |
| Vietnam | Neutral | −8 | Accelerating | Outflows increasing | Low |
| Indonesia | Neutral | −25 | Accelerating | Outflows increasing | High |
| Malaysia | Neutral | −25 | Expanding | Outflows increasing | Low |
Weekly brief: Southeast Asia starts Neutral: strong growth data meet heavy foreign selling
Regime: Neutral (score -2, Balanced), Accelerating economy – strong growth data are offset by heavy foreign selling, so the region sits in balance.
What changed
This is the first weekly reading for Southeast Asia, so there is no earlier score to compare. The regime is recorded as new from 25 October 2026, and the region ranks 7th of 13.
Economy and markets
The IMF’s October WEO sees regional growth of 4.9% in 2026 and 4.7% in 2027. Q3 GDP beat expectations: Vietnam grew 9.95% y/y, Singapore 5.4% and Malaysia 5.3%. Indonesia’s manufacturing PMI rebounded to 52.4 in September. Economic momentum is the strongest factor (+37). Markets are lagging, though. The regional benchmark fell 5.2% over the past month and has trailed MSCI ACWI by 5.2 points over three months and 1.8 points over six. Indonesia is down about 44% year to date after the 16 October rout over MSCI’s reclassification consultation. The ASEAN forward P/E is 14.9x, against 9.7x for MSCI EM.
Capital flows and rotation
Capital flows are the weakest factor (-40), and outflows are increasing. The IIF recorded $26.3bn of EM portfolio outflows in September. Foreigners have sold $4.88bn of Indonesian stocks this year, and Malaysia has seen four straight weeks of foreign selling. Over three months, regional ETF flows are roughly flat at -0.3% of fund size. By market they range from +11.9% for Thailand to -29.4% for Malaysia. The region is at the "economy improving" stage in the lagging quadrant.
Currency
The currency score is +8 (SGD reference). The 1-year view is sideways to firmer and the 3-5-year view is firmer. MUFG expects gradual SGD appreciation and sees high oil supporting MYR. It expects further IDR weakness and a managed crawl lower in VND. For USD, EUR and GBP-based investors, SGD and MYR exposure could add modestly to returns, while IDR and VND exposure could subtract from them.
Risks and what to watch
Geopolitical risk is moderate overall but high for Indonesia, where Moody’s and Fitch have cut their outlooks to negative. Dates to watch: the FOMC decision on 28 October, Indonesia’s Q3 GDP in early November, Malaysia’s final Q3 GDP on 18 November and Singapore’s final Q3 GDP in November. Indonesia’s response to MSCI also matters ahead of the final decision in June 2027.
Educational information, not investment advice. Scores are model outputs, not forecasts.
Source: Sonsero Regions weekly snapshot 2026-10-25 (market data from TradingView; IMF, central bank and fund-flow research). Scores and regimes are rules-based descriptions of conditions, not investment advice.