Warren Buffett has taken money off the table this year by selling stock worth billions of dollars.
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- Investors aren't sure how to position their portfolios going into the US presidential election.
- Warren Buffett signaled in Berkshire Hathaway's third-quarter earnings that he was being cautious.
- The investor built a record cash pile, slashed his two biggest stock bets, and halted buybacks.
Investors are puzzling over how to play the market ahead of Tuesday's US presidential election.