Adobe Inc. is a multinational US computer software company, listed on the Nasdaq stock exchange (it is also a component of the Standard and Poor's 500 index). The following R output was obtained using weekly data for the period 27 February 2017 to 17 February 2020. In the estimation output 'log' is the natural logarithm, and 'd' is the first-difference operator. ADBE is the Adobe stock price, d(log(ADBE)) is the weekly log return on Adobe stock, and d(log(SP500)) is the weekly log return on the Standard and Poor's 500 index.

OLS estimation, 155 available observations Dependent variable: d(log(ADBE)) Constant 0.004869 (0.001902) t = 2.559520 p = 0.011452 d(log(SP500)) 1. 138793 (0.104362) t = 10.911920 p = 0.000000 Observations 155 R2 0.437645 Adjusted R2 0.433969 Residual Std. Error 0.023502 (df = 153) F Statistic 119.070000 (df = 1; 153) (p = 0.000000) Durbin-Watson test DW = 2.1624, p-value = 0.8477 alternative hypothesis: true autocorrelation is greater than 0 Breusch-Godfrey test for serial correlation of order up to 1 LM test = 1.0365, df = 1, p-value = 0.3086\f