Hello, I am new at this so please bear with me. When you do technical analysis for futures, like Gas winter07 and want to analyse data as far as 2003 what do you do when there is lots of missing data (obviously since in 2003 people were not trading 2007 very oftenâ¦). Do you fill the gaps with 0 quantities and the last closing price, or you just donât do technical analysis that far for futures or what is the regular procedure? Thank you for your help. Advices and theoretical background on this will be welcomed.