Regression Equations, Generalized Least Squares, Correlation Matrices, Python, Statsmodels.
+2.2377 tells us two things: The Risk Adjusted Return on Halliburton for any trailing 3-month period is directly proportional to the trailing 3-month RAR on the S&P Energy index. For each unit percentage increase (decrease) in the trailing 3-month RAR on the S&P Energy Index, the trailing 3-month