Commodity and commodity deviatives

Hi everyone.

i would like to ask if I hv a commodity derivative contract and now want to roll over it e.g. Futures price is 100 and spot price is 120, may I know in this case, wt is my spot yield? Wt additional info do I need in order to get the spot yield?



The spot yield is the difference between the spot price when you roll over the contract and the spot price when you entered the contract.