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(Updates from 10:21 am ET with closing information.)



) -- Here's what Jim Cramer had to say on


's "Squawk On The Street" Tuesday:

National Oilwell Varco

(NOV) - Get Report

is a terrific technology company, so to see it downgraded has Cramer worried. He is not worried about

Illinois Tool Works

(ITW) - Get Report

, however, after the company's CEO passed away last week. Cramer said he still likes this the company.

Investors were more worried about National Oilwell Varco, pushing its shares down 2.6% at the close Tuesday, while Illinois Tool Works stock was unchanged.

Cramer is also bullish on

MarkWest Energy Partners


, saying this company's secondary offering went very well, which means things are working. He also said that if

Norfolk Southern

(NSC) - Get Report

is able to meet its numbers, coal may have indeed bottomed.

MarkWest's shares ended the day up nearly 1% while Norfolk Southern was up 1.2%

He is less optimistic about

Boston Scientific

(BSX) - Get Report

. Cramer said this group has been in turmoil as of late, and the positive momentum at Boston Scientific may be stopped in its tracks.

He ended on a positive note by saying people really like using


(YELP) - Get Report

, which is why this company is among the best-performing social media stocks this year.

Boston Scientific's shares were down slightly at the close but Yelp shares screamed higher by 6.6%.

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-- Written by Scott Rutt in Washington


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At the time of publication, Cramer's Action Alerts PLUS had no positions in the stocks mentioned.

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