Just for the fun of it, I used a CBOE calculator to price an 85,000 call and put on class A shares with 30 days to expiry and 40% vol:
Call 4,508
Put 3,370
AAPL, which is a $90 stock has a bid-ask spread of around 0.10 on ATM options. So that means, the bid-ask spread on BRK options would be around 100, assuming the same level of liquidity in them as in AAPL options.

Call 4,508
Put 3,370
AAPL, which is a $90 stock has a bid-ask spread of around 0.10 on ATM options. So that means, the bid-ask spread on BRK options would be around 100, assuming the same level of liquidity in them as in AAPL options.
