When i enter in this menu i did'nt understand what matemathically mean Stacked.
Maybe the average of the Legs of the Spread ?
That is ZLH21-ZLN21 --> Stacked AVERAGE (ZLH21, ZLN21) = medium price
is this that compare with the other years seasonality ?
Help donsn't explain the basis of the principle "Stacked"
Thanks in advance
Luca