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Investors kickoff the week awaiting more developments on President Trump’s trade deals and the decision on interest rates by the Federal Reserve out Wednesday. Optimism is improving after the S&P 500 notched the longest winning streak in 20 years last week.

Berkshire has outperformed the S&P 500 during the past year and past three years, and has nearly tripled during the past five years while the S&P 500 has doubled. The gains come even as Berkshire has been reducing its investments in equity securities and building up its cash position.