Question: IB Reg-T Margin EoD for Covered Calls

Hello guys!

From IB website:
Interactivebrokers' Reg-T Margin requirement for overnight holding of
Covered Calls (Short an option with an equity position held to cover full exercise upon assignment of the option contract):
Initial stock margin requirement + 100% of in the money option value. Short sale option proceeds are applied to cash.

Now my question:
How high is the overnight margin for "partly covered" calls, e.g. you are long 300 shares and short 10 out-of-money-calls?
Is it as high as if you were long 1000 shares? Or 300 shares? Or something different?
Couldn't find any info on that.

TIA,
Lucky

 

You have 7 naked short calls so I assume the margin for naked calls applies to them.

 

You margin requirement will be calculated based on holding 3 covered calls and 7 naked calls.

 

Thanks, guys!