Forecast valuation derivative in DCF

I’m doing a DCF calculation but how can I forecast financial derivatives? It currently has a fair value of -100. And -50 of this fair value expires next year, and -50 expires the year thereafter.

How can I forecast this, can I just discount the -50 cash outflows?

Thanks.

you need to forecast the payoff of the derivative, then discount this value.

for instance, lets say you are long 10 barrels of oil at 90 that expires in 1 year. if you think spot oil in 1 year will be 100, then the contract will be $10 in the money and your payoff in 1 year will be $100, (10 bbls * $10).

This payoff is what you need to discount in your DCF, not the current fair value.

Sorry I think I was not really clear with my question.

The derivative is on balance… so I have to forecast the balancesheet ;).

It’s valued at fair value… how would you forecast it ?

thanks!