ZHANG, Siyi. Using the SPY Index for Linear Regression Analysis of AAPL Stock Returns. Finance & Economics, [S. l.], v. 2, n. 5, p. 2742, 2024. DOI: 10.61173/t2vaxv04. Disponível em: https://fe.deanfrancis.press/article/view/834. Acesso em: 4 nov. 2026.