This paper selects the S&P 500 Index in the US as an indicator of the stock market. In addition to stock returns and oil market volatility, we consider important control variables in the regression equation, including exchange rate (ER), interest rate (IR), and industrial production index (IP). We use the normal US dollar index to refect the exchange rate and select the second market rate of the 3-month US Treasury bills as the indicator of the interest rate. The data above can be obtained from the Wind Database.