Subject: BRK options
Jim repeatedly said options move strongly when their strike price is reached. Really? I am a bit sceptical because of my current experience: In March I bought lots of BRK out of the money puts (Sep+Jan ones, strike 395/400/405/410). Last week with BRK around $405-410 I sold the $400's for $13.50. With BRK/B now at exactly their strike of $400 I expected the price of those puts to be a lot higher. But no. While Bid/Ask is $13.5/15.5 the last actual transaction was done for a mere $12.15 = instead of higher a lot lower.

???