His market data service is a must-have item for investment professionals in the U.S. and, increasingly, in Europe.

FORBES: Bloomberg For Sale?

His Bloomberg market data service is a must-have item for investment professionals in the U.S. and, increasingly, in Europe.

FORBES: Bloomberg For Sale?

Ivory is also purchased as a collector's item or for investment, Gabriel said.

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The first problem is that the military services are facing a period of fiscal austerity due to budget deficits, and technology investment is usually the first item to be cut when defense budgets turn down.

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The main item today is a mid-afternoon conference call with an investment committee on which I sit.

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Considering they typically recoup the value of an item within 270 days, he said they've made back their investment in spades.

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