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While Buffet's record of achieving an above 20% compounding annual return for the last 30 years arguably places Buffet as the most successful investor ever, Buffet ran into criticism [67] during the subprime crisis of 2007-2008 that he has allocated capital too early resulting in suboptimal deals. Buffet's Berkshire Hathaway suffered a 77% drop in earnings during Q3 2008 and several of his recent deals appear to be running into large mark-to-market losses[68]. Berkshire Hathaway acquired 10% perpetual preferred stock of Goldman Sachs at $123 [69] only for it to fall to below $70. Furthermore some of Buffet's Index put options (European exercise at expiry only) that he wrote (sold) are currently running around $9 Billion mark-to-market losses.
Ultimately Berkshire's Goldman Sachs shares and Index Put options may well realise a profit, but hindsight has shown that the entry prices have been far from optimal.
