The influence of price volatility in the crude oil market is expanding to non-energy commodity markets. With the substitution of fossil fuels by bio-fuel and hedge strategies against inflation induced by high oil prices, the link between crude oil market and agriculture markets and metal markets...

We augment the HAR model with additional information channels to forecast realized volatility of WTI futures prices. These channels include stock markets, sentiment indices, commodity and FX markets, and text-based Google indices. We then apply four differing machine learning techniques to...