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A rally in

Jacobs Engineering

(JEC) - Get Free Report

shows the infrastructure sector can be bought again, Jim Cramer said on


"Stop Trading!" segment Tuesday.

Jacobs, which "blew the cover off the ball" with its recent earnings, single-handedly vanquished frustration caused over the last few weeks by

Shaw Group




(HAL) - Get Free Report

, Cramer said. "This signals it's time to buy


(FLR) - Get Free Report



(MDR) - Get Free Report


Jacobs' good fortune highlights that most U.S. infrastructure concerns are "international companies" that are more dependent on spending in Bahrain and China than by Texas utilities. "Infrastructure is global in nature, not U.S. in nature."

In another sector, Cramer praised


(MDT) - Get Free Report

on a belief that the federal government won't cut back Medicare and Medicaid reimbursements for its devices as much as feared.

Cramer also reiterated his belief that trading in the

Oil Services Holders

(OIH) - Get Free Report

fund is being manipulated. He noted the ETF "snapped back nine points" since being "jammed down" toward $130 last week during an options expiration. "The


is busy investigating hedge funds. Why don't you check out what happened in the OIH?"

At the time of publication, Cramer was long Halliburton.

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