Fig. 8
From: A hybrid econometrics and machine learning based modeling of realized volatility of natural gas
Evolution of the financial asset effect on natural gas volatility in the study period daily analysis. Note Red filled circle indicates the Brent effect, purple filled circle indicates the Euro effect, light blue filled circle indicate the Gold effect, and light green filled circle the Standard and Poor’s 500 effects; dark blue filled circle repersents the realized volatility of the Natural Gas