Perhaps it is nothing more than wild speculation at this point, but rumors are popping up on the street that Warren Buffett may have received margin calls related to derivative/option investments. Yes, these are the same type of investment that Mr. Buffett has termed, “financial weapons of mass destruction.” As crazy as this may sound, [...] Related posts: Strategy Lab: Tough to Hit a Volatile Market (up 14%) Links and Reading for November 24th Links and Reading for October 9th