Traders of the Caribbean

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Comtech Telecommunications Corp. (CMTL:US) advanced 8.4 percent to $33.03 and jumped 11 percent earlier, the most intraday since December 2008. The provider of mobile-data communications equipment to the U.S. Army posted profit excluding some items of 33 cents a share in the fiscal first quarter, topping the average analyst estimate by 44 percent.