In September, the SET closed at 1,237.04 points or 5.6 percent lower than the previous month. This is due to several factors, firstly slower-than-expected COVID-19 vaccine development. Secondly, concerns about global economic recovery delays. Lastly, local political uncertainty weighed on investors’ sentiment. SET Index fell 21.7 percent from end-2019, but still fared than MSCI ASEAN which shrank 24.7 percent.