When investing great Warren Buffett speaks, Wall Street wisely listens. Since ascending to the CEO chair at Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) in the mid-1960s, he's overseen an aggregate return in his company's Class A shares (BRK.

Warren Buffett is unwinding his most profitable trade in history, filling Berkshire Hathaway’s coffers with cash. But it is unclear if the Oracle of Omaha is ready to go elephant-hunting with his recent bounty.

Berkshire was a net seller of $127 billion of stocks this year, bringing its equity portfolio down to $300 billion and nearly doubling its cash position to a record $311 billion.

The company, run by investor Warren Buffett, keeps trimming its equity portfolio and is now sitting on close to $325 billion in cash on its balance sheet. While this does not necessarily mean Buffett is making a directional call on the stock market,