Donald Trump's participation in the ASEAN summit in Kuala Lumpur has catalyzed a market rebound in Southeast Asia, reversing a prolonged trend of investor outflows. The summit resulted in new trade agreements with Malaysia, Cambodia, and Thailand, which, coupled with record-low valuations, are drawing renewed interest in regional equities. Southeast Asian stocks are currently trading at 14 times forward earnings, a notable discount compared to the MSCI All Country World Index. Trump's signing of a trade agreement and a critical minerals pact with Malaysia's Prime Minister Anwar Ibrahim marks a significant milestone in bilateral relations. Additional agreements with Cambodia and Thailand are expected to enhance long-term growth prospects. Analysts believe that these durable US-ASEAN trade frameworks could stabilize exports and attract further capital inflows, as investors shift focus from China to ASEAN markets amid easing political tensions and supply chain diversification.