1. Faculty of Finance and Banking, Ton Duc Thang University, Ho Chi Minh City, Vietnam
2. Portfolio Management, Dynam Capital, Ho Chi Minh City, Vietnam
3. Corresponding author at Faculty of Accounting and Auditing, Van Lang University, 69/68 Dang Thuy Tram Street, Ward 13, Binh Thanh District, Ho Chi Minh City, Vietnam