Not sure which bit you are unclear on...
Example:
Iron condor = short strangle (closer to the money/beefier premium) + long outer strangle (further out of the money/long cheap wings)
Yes, retail investors can do this as this thread is evidence of (although technically not an IC thread)
Ratioing the wings, especially on the PUT side is what allows the position to "rain money" "when the nightmare hits"
As discussed before, ratioing the wings is only really practical if the short option is NOT FOTM otherwise you risk decimating the "credit". Market makers have different margin requirements which also helps.
One can build up long wings at various intervals and also at various strikes or even maturities (diagonalize) as circumstances permit.
The 10,000 mile (portfolio) view of the position will look like a long butterfly/condor (long wings, short body)
The 1 mile view of the position will reveal short and long positions across multiple strikes and multiple maturities with predominantly short positions close to the money and predominantly long positions (wings) further out. It depends how the inventory is built up over time.
So in summary: to get the "raining money" effect in unexpected scenarios e.g. black swan, as well as "earning theta" under under more normal scenarios, the goal is to be short gamma (long theta) by shorting near the money options but also to be
net long contracts by ratioing the wings.
Cottle's explanation for the skew is one of many contributing factors and not the definitive reason IMO.
HTH.
MoMoney.
Quote from Heatheranderson:
------------------------------------------------------------------------------------
Can you please explain this with an example?. Is this something retail investors can do?.