Vietnam's stock market experienced its largest daily decline in over four years, with the VN Index falling by 6.2% following the announcement of higher-than-expected tariffs by U.S. President Donald Trump. The new tariffs, set at 46%, have left Vietnamese businesses shocked and concerned about the potential shift of foreign investment to other countries, particularly India. Prior to the tariffs, local officials had anticipated a much lower rate of 10-15%. The imposition of these tariffs has prompted significant reactions in the market, leading to declines in shares of Asian companies that manufacture goods in Vietnam. The broader impact of these tariffs is raising fears about the future of Vietnam's economy and its attractiveness to foreign investors.