Tóm tắt:
Mục tiêu nghiên cứu: Nghiên cứu tập trung phân tích ảnh hưởng của quy mô hoạt động tự doanh (HĐTD), cùng một số yếu tố liên quan đến lợi nhuận và rủi ro tài chính thuộc 36 công ty chứng khoán (CTCK) tại Việt Nam trong giai đoạn 2015–2024.
Thiết kế nghiên cứu/phương pháp/tiếp cận: Dựa trên dữ liệu bảng gồm 360 quan sát từ 36 CTCK trong giai đoạn 2015–2024, nghiên cứu sử dụng phương pháp ước lượng FGLS nhằm khắc phục hiện tượng phương sai sai số thay đổi và tự tương quan.
Kết quả nghiên cứu chính: Quy mô HĐTD, quy mô công ty (QMCT) và tăng trưởng thị trường chứng khoán (TTCK) có tác động cùng chiều đến lợi nhuận, trong khi đòn bẩy tài chính (ĐBTC) có ảnh hưởng ngược lại. Đối với rủi ro tài chính (RRTC), chỉ hai yếu tố có ảnh hưởng, bao gồm tăng trưởng và thanh khoản TTCK.
Giá trị đóng góp mới: Nghiên cứu cung cấp những bằng chứng thực nghiệm mới về ảnh hưởng của quy mô HĐTD, góp phần hỗ trợ xây dựng các chiến lược sinh lời và kiểm soát rủi ro một cách hiệu quả.
Tài liệu tham khảo:
- Al-Jafari, M. K., & Samman, H. A. (2015). Determinants of Profitability: Evidence from Industrial Companies Listed on Muscat Securities Market. Review of European Studies, 7(11). https://doi.org/10.5539/res.v7n11p303.
- Arhinful, R., & Radmehr, M. (2023). The effect of financial leverage on financial performance: evidence from non-financial institutions listed on the Tokyo stock market. Journal of Capital Markets Studies, 7(1), 53-71. https://doi.org/10.1108/jcms-10-2022-0038.
- Bhagat, S., Bolton, B. J., & Lu, J. (2012). Size, Leverage, and Risk-Taking of Financial Institutions. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.2122727.
- Brennan, M. J., Chordia, T., Subrahmanyam, A., & Tong, Q. (2012). Sell-order liquidity and the cross-section of expected stock returns. Journal of Financial Economics, 105(3), 523-541. https://doi.org/10.1016/j.jfineco.2012.04.006.
- Dömötör, B. (2023). Large firm effect in enterprise risk management. Acta Oeconomica, 73(3), 403-418. https://doi.org/10.1556/032.2023.00023.
- Enisan, A. A., & Olufisayo, A. O. (2009). Stock market development and economic growth: Evidence from seven sub-Sahara African countries. Journal of Economics and Business, 61(2), 162-171. https://doi.org/10.1016/j.jeconbus.2008.05.001.
- Fama, E. F. (1970). Efficient Capital Markets: A review of theory and Empirical work. The Journal of Finance, 25(2), 383. https://doi.org/10.2307/2325486.
- Fecht, F., Hackethal, A., & Karabulut, Y. (2016). Is Proprietary Trading Detrimental to Retail Investors. Social Science Research Network. https://doi.org/10.2139/SSRN.1783679
- Ferson, W. E., & Harvey, C. R. (1991). The variation of economic risk premiums. Journal of Political Economy, 99(2), 385-415. https://doi.org/10.1086/261755.
- Gong, C. M., Luo, D., & Zhao, H. (2019). Liquidity risk and the beta premium. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.3506874.
- Iercosan, D., Kumbhat, A., Ng, M., & Wu, J. (2017). Trading activities at systemically important banks, Part 3: What drives trading performance?. FEDS Notes. https://doi.org/10.17016/2380-7172.2025.
- Jensen, M. C., & Meckling, W. H. (1976). Theory of the firm: Managerial behavior, agency costs and ownership structure. Journal of Financial Economics, 3(4), 305-360. https://doi.org/10.1016/0304-405x(76)90026-x.
- Johnson, T. C. (2007). Volume, liquidity, and liquidity risk. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.970729.
- Markowitz, H. (1952). PORTFOLIO SELECTION*. The Journal of Finance, 7(1), 77-91. https://doi.org/10.1111/j.1540-6261.1952.tb01525.x.
- Mitton, T. (2005). Stock market liberalization and operating performance at the firm level. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.648282.
- Nguyen, T. N. D., Ha, T. C., Nguyen, M. C., Bui, T. T. L., & Nguyen, T. H. Y. (2023). Determinants of financial risk of firms listed on the national stock market: Dynamic panel evidence from Vietnam. Asian Economic and Financial Review, 13(11), 875-886. https://doi.org/10.55493/5002.v13i11.4878.
- Nishide, K., & Tian, Y. (2014). Monopolistic Dealer versus Broker: The Impact of Proprietary Trading with Transaction Fees. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.2470355.
- Prabhakar, B. E., & Japee, G. P. (2023). An analytical study of Ambuja Cements Ltd. and ACC Ltd. based on various profitability measurements. International Journal of Management Public Policy and Research, 2(1), 136-142. https://doi.org/10.55829/ijmpr.v2i1.125.
- Rahman, S. M. K., Chowdhury, M. A. F., & Mohiuddin, K. M. (2018). An Investigation into the Relationship between Degree of Financial Leverage and Financial Risk of Firms: A Comparative Study between Listed MNCs and Domestic Companies of Bangladesh. Asian Economic and Financial Review, 8(3), 433-448. https://doi.org/10.18488/JOURNAL.AEFR.2018.83.433.448.
- Sahani, T. (2024). Refined Strategies: Financial Risk Management in the Realm of International Business. Adhyayan: A Journal of Management Sciences, 14(01), 17-22. https://doi.org/10.21567/adhyayan.v14i1.04.
- Saleh, M. M. A., Jaradat, M. M., Wedyan, L. M., & Saleh, H. M. I. (2021). The impact of liquidity and leverage on profitability in industrial sector in Jordan. Research in World Economy, 12(1), 394-405. https://doi.org/10.5430/rwe.v12n1p394.
- Sha, L., & Liu, G. (2024). Study on the Causes and Countermeasures of Enterprise Financial Risk. Frontiers in Business, Economics and Management, 16(1), 69-72. https://doi.org/10.54097/9gb49013.
- Shahfira, D., & Hasanuh, N. (2021). The influence of company size and debt to asset ratio on return on assets. Moneter – Jurnal Akuntansi dan Keuangan, 8(1), 9-13. https://doi.org/10.31294/moneter.v8i1.8807.
- Spence, M. (1973). Job market signaling. The Quarterly Journal of Economics, 87(3), 355. https://doi.org/10.2307/1882010.
- Sukesti, F., Ghozali, I., Fuad, F., Almasyhari, A. K., & Nurcahyono, N. (2021). Factors affecting the stock price: The role of firm performance. Journal of Asian Finance, Economics and Business, 8(2), 165-173. https://doi.org/10.13106/jafeb.2021.vol8.no2.0165.
- Takon, S. M., & Ogakwu, V. N. (2013). Impact of liquidity on return on assets of firms: Evidence from Nigeria. International Journal of Management & Information Technology, 6(3), 885-894. https://doi.org/10.24297/ijmit.v6i3.728.
- Trần Thị Xuân Anh, Phạm Tiến Mạnh, & Trần Anh Tuấn (2020). Phân hạng thị trường chứng khoán Việt Nam - những vấn đề đặt ra trong thời gian tới. Tạp chí Khoa học & Đào tạo Ngân hàng, 219, 36-48.
- Umlauft, R. (2013). BETAS and liquidity: Differences in systematic price risk due to asymmetric asset liquidity and correlated funding shocks. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.2134945.
- Vietstock. (2025). Quy mô danh mục lập kỷ lục, tự doanh công ty chứng khoán đang cầm hàng gì? Retrieved July 29, 2025 from https://vietstock.vn/2025/05/quy-mo-danh-muc-lap-ky-luc-tu-doanh-cong-ty-chung-khoan-dang-cam-hang-gi-737-1312300.htm.
- Zhang, T., Chen, Q., & Zhu, X. L. (2024). Analysis of Enterprise Financial Risk Early Warning Model Based on the Evidence Theory and Whitening Weight Function. Scientific Programming, 2024(1). https://doi.org/10.1155/2024/9207782
- Zheng, Z., He, J., Yang, Y., Zhang, M., Wu, D., Bian, Y., & Cao, J. (2022). Does financial leverage volatility induce systemic financial risk? Empirical insight based on the Chinese fintech sector. Managerial and Decision Economics, 44(2), 1142-1161. https://doi.org/10.1002/mde.3738.
Abstract:
Purpose: This study focuses on analyzing the impact of proprietary trading scale and several related factors on the profitability and financial risk of 36 securities companies in Vietnam during the period 2015 to 2024.
Design/methodology/approach: Based on a panel dataset of 360 observations from 36 securities companies over the period 2015 to 2024, the study employs the Feasible Generalized Least Squares (FGLS) estimation method to address issues of heteroskedasticity and autocorrelation.
Findings: The proprietary trading scale, company size, and stock market growth positively affect profitability, while financial leverage has a negative effect. Regarding financial risk, only two factors, stock market growth and liquidity, are found to have significant impacts.
Originality/value: This study provides new empirical evidence on the influence of proprietary trading scale, contributing to the development of effective strategies for improving profitability and managing financial risk.