Stocks climbed Monday as investors pinned hopes on a production freeze agreement among members of OPEC. A surge in crude prices pushed the S&P 500 and Nasdaq to trade at intraday records. 3M (MMM) was the worst performer on the Dow after Goldman Sachs downgraded its rating to SELL from NEUTRAL. Its price target was also reduced. Analysts pointed to expected weakness in its energy and electronics businesses as reason for the downgrade. Oracle (ORCL) agreed to acquire web service company Dyn, the details of which were not disclosed. Dyn was the victim of a massive Internet attack in October that affected popular sites including Twitter and Netflix. Australian company Boral agreed to buy construction materials maker Headwaters  (HW) for a hefty premium. The purchase is a bet of President-elect Donald Trump's proposed infrastructure spending plans. TheStreet's Keris Lahiff has details from Wall Street.

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