We really don't pay all that much attention to the news that floods across our screens on 13-F Day every quarter, but in a way, we do. We know the information is dated, coming 45 days after the quarter being reported ends. We know that short positions and cash positions are not included. What if a long position listed on a 13-F is merely a hedge against a larger short position in a somehow adjacent security? We'll never know.
Many of the 13-Fs released, come from very accomplished...