Jim Cramer's Top Takeaways: UnitedHealth, Ambarella, Radius Health

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NEW YORK (TheStreet) -- Did you miss last night's "Mad Money" on CNBC? If so, here are Jim Cramer's top takeaways for today's trading.

UNH Chart
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UnitedHealth Group (UNH): With the Federal Reserve set to begin raising interest rates any time now, investors need to stick with secular growth stocks, like the health care cost containment companies. The best of breed player in that group is UnitedHealth.

In addition to being our nation's largest health care provider, UnitedHealth has Optus, its "secret sauce" that includes a pharmacy benefit manager and services company that is expected to contribute up to 40% of UnitedHealth's total earnings in the coming years.

UnitedHealth already puts up huge numbers, but the company is still expected to grow between 9% and 12% a year. Shares of UnitedHealth trade for 17 times earnings, a slight premium to its peers, but Cramer said it deserves that premium and more given its best of breed status and the fact its shares are up 86% over just the past two years.

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