Is there any point in delta hedging defined risk strategies such as ICs or are they generally only Vega/ Gamma hedged?
Of course there is a point.. But keep in mind there are different approaches to trading defined risk strategies... Some may risk 1 to make 3 and stop themselves when they are down 1... If it's a cheap fly/ calendar,you may opt to punt and let the spread go to your target... If I trade a fly with a large debit and skew edge,I most certainly Delta hedge....
Also depends on how you are defining Delta hedging. Are you strictly referring to adjusting with the underlying or also including rolling/purchasing/selling of options.. If you are in a wide condor,you can adjust your short verts distance and effectively the Delta by Buying/Selling flys..
thats a good point. Fixed premium can mean a lot of things. If you are long the body of a fly and short really wide wings, then technically it’s fixed premium but practically it’s a naked straddle.