# varswap replication doubt

I have a doubt regarding the varswap replication- I know the portfolio of options with proper weights is a static one, and that there is a dynamic position required in underlying. My confusion is whether this dynamic position in underlying relates to delta hedging of the options i.e. are you required to calculate net delta of your portfolio of options and hedge that? I think it somehow relates to delta hedging as we are finally able to capture difference between implied and realized vol, but cant get my head around it.

I actually still have to complete the note with showing that the aggregate delta of the options portfolio is $$1/S_t$$, but I have not had time yet.