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Did you miss last night's "Mad Money" on CNBC? If so, here are Jim Cramer's top takeaways.

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Western Digital (WDC) - Get Report :

Cramer spoke with Steve Milligan, CEO of Western Digital, the semiconductor maker with shares that are up 13% for the year, but still trades at just eight times earnings.

Milligan said there are two factors driving Western Digital. The first is the dramatic growth of data creation and the second is the transformation of how data are being stored. That's why Western Digital's acquisition of Sandisk, which closed in May, was so important: It provided Western Digital with more great technology to meet customer needs.

Milligan did caution that while PC sales have stabilized, they are still likely to decline in the future.

When asked about the incoming administration, Milligan said that Trump's trade war rhetoric could be a risk factor for all of technology, but he remains hopeful the business-oriented president-elect will consider all sides in his negotiations with China.

GE (GE) - Get Report and Arconic (ARNC) - Get Report offer positive deep dives: Read what Cramer and Jack Mohr are telling the members of their investment club about these stocks with a free subscription to Action Alerts PLUS.

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Diamondback Energy (FANG) - Get Report  : Beware of the FANG that could bite you, Cramer warned viewers, speaking of Diamondback Energy. Cramer said that while Diamondback's secondary offering of 10.5 million shares at $97 a share was well received by the market and closed up $4, the oil market is beginning to become circumspect.

Cramer noted that despite OPEC's promise to curb production, the two- and five-year oil futures barely budged, signaling that investors aren't betting the cuts will stick. He also cited the U.S. rig count, which had fallen from 664 to just 404 is now back to 624 active rigs, a sign that U.S. producers are ramping up to fill the gap.

Finally, Cramer said, with Trump favoring fossil fuels, it's easy to see a scenario where the U.S. keeps a lid on oil prices in the future.

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IDEXX Laboratories (IDXX) - Get Report  : Cramer spoke with Jonathan Ayers, chairman and CEO of IDEXX Laboratories, the pet health company that's cashing in on the so-called humanization of pets. Shares of IDEXX are up 65% for the year.

Ayers said that every generation is more attached to their pets than the one before it and that's why nearly 50% of all pet owners will be buying gifts for their pets this Christmas. The humanization of pets is a long-term trend, he said, and the millennial generation is spending even more on their animal companions.

Turning to politics, Ayers added that with two-thirds of their sales stemming from the U.S., any tax reform would be a big win for IDEXX.

IDEXX is more than just pets, Ayers said, as his company is also the leader in livestock health diagnostic products as well. That's why Cramer said the company is one of the best secular growth stories around.

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At the time of publication, Cramer's Action Alerts PLUS had positions in GE and ARNC.