South-east Asia had a decent 2025. So why does no one feel like celebrating?

Southeast Asia delivered a decent 2025 on aggregate, but domestic political dysfunction is muting celebration and raises downside risk into 2026. Vietnam is highlighted for negotiating US tariffs down from 46% to 20%, easing a major trade headwind, yet the piece warns that home-grown governance and political issues across the region could weigh on investor sentiment and capital flows.

Analysis

Market structure: Reduced US tariff outcome (46%→20%) for Vietnam materially re-routes marginal supply-chain orders into ASEAN versus China; immediate winners are Vietnam-heavy manufacturing exporters and regional logistics providers, losers are legacy China-exposed OEMs and US-focused apparel exporters. Pricing power shifts toward ASEAN assemblers for electronics/garments over the next 6–18 months as firms re-source to avoid tariff friction; expect 3–7% revenue reallocation industry-wide in first year. Cross-asset: positive for regional FX (VND, IDR, THB) vs USD in 3–9 months, supportive of regional equities and lower CDS spreads; commodity demand up slightly for copper/steel (~1–3% incremental demand).

Risk assessment: Tail risks include US tariff re-escalation (+10–20pp within 6 months), regional elections in 2026 creating protectionist policies, or a sharp VND devaluation (>5% q/q) that erodes real gains; these scenarios could wipe 15–30% off short-term equity moves. Hidden dependencies: corporate capex cycles and port/logistics capacity are binding constraints — if ports saturate, margin uplift delays 6–12 months. Key catalysts: US-China talks, ASEAN trade deals, monthly PMI and export data (watch next 3 prints).

Trade implications: Tactical: favor Vietnam exposure and select Singapore banks that finance trade flows; hedge with China Internet shorts and EM tail protection. Use options to express asymmetric upside while limiting cash risk (6–12 month expiries). Timeframes: establish core positions within 2–6 weeks, re-evaluate on two macro catalysts (next 3-month PMI prints and US tariff headlines).

Contrarian angles: Market consensus focuses on political dysfunction; I see underappreciated near-term earnings upside if tariff certainty persists — Vietnam EPS revisions could beat by 8–15% over 12 months. Conversely, the optimism may be overdone for small-caps lacking scale; liquidity and logistics bottlenecks can create a multi-quarter growth cliff. Historical parallel: 2010–12 manufacturing shifts post-tariff shocks show front-loaded equity re-rating, then mean-reversion when operational constraints bite.

Key Decisions for Investors

• Consider establishing a 2–3% long position in VNM (VanEck Vietnam ETF) sized to portfolio risk for a 6–12 month horizon; set a hard stop-loss at -12% and a profit-taking zone at +15–25% if Vietnam export growth beats by >5% y/y in next two quarters.
• Initiate a 1–2% long position in DBS Group Holdings (D05.SI) to capture trade-finance and FX flow upside; trim if Singapore bank NIM compresses >20bps or if 3-month USD/SGD moves >±3% from current levels.
• Enter a relative-value pair: long VNM (2%) / short KWEB (KraneShares China Internet ETF, 1.5%) for 3–9 months to express supply-chain re-allocation; unwind if China PMI >50 for two consecutive months or relative performance gap >15%.
• Execute option structures for asymmetric exposure: buy a 6–12 month call spread on VNM (small size 0.5–1% portfolio) to cap premium, and buy a 3-month put on EEM (size 0.5–1%) as tail-risk insurance; close/roll if tariff headlines move >±10 percentage points.
• Reduce exposure by ~30% to ASEAN small-cap exporters (garments, basic electronics) over next 30 days and redeploy into short-duration EM sovereign credit (e.g., EMB) or cash-equivalents to preserve optionality until next 60 days of PMI/export prints clarify operational capacity constraints.