Thomson, Reuters and Bloomberg have been competing to sell data terminals to large banks, brokerages and hedge funds.
The letter seeks data going back to 2008 as the bank examines whether the seller of ubiquitous trading-data terminals was in breach of contract, the person said.
Since the New York company was founded by New York City Mayor Michael Bloomberg in 1982, its data terminals have seized a growing share of the lucrative market for financial information.
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To help colorblind users in the trading world, Bloomberg financial-data terminals include plus and minus symbols or up and down arrows to indicate the direction of the market or stock price, says a spokeswoman for Bloomberg LP.
Bloomberg financial data terminals into breaking-news gatherers.
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The vast majority of its business lies instead in selling financial and trading data, along with the terminals that deliver such data.
Bloomberg executives rushed to reassure them, when it came out last week that Bloomberg reporters had been using data gleaned from subscriber terminals to get an edge in the competitive news-gathering business.
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Unlike the iPhone, the Z10 will allow you to expand storage with a microSD card, and it sports a chip letting the phone act as a credit card at some payment terminals and share data wirelessly when tapped against some other phones.
That company has a 33% market share for financial information terminals, according to Inside Market Data Reference, but the Thomson-Reuters combination should put it just ahead, with 34% of the market.
Just look at how fast information technology departments swung to servers connecting to PCs, shutting down mainframe and mini-computer data centers and wiping out thousands of green-screen terminals.
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If desktop computers and terminals proliferate in hotel rooms and other locales, Dulaney thinks users could more easily carry personal data files and applications around in tiny memory cards that just plug into any available desktop system.
It's something that Reuters pioneered -- in 1964 the company was the first to provide computers to transmit financial data internationally -- but in which it had been lagging behind thanks to the surprise success of Bloomberg's terminals in the late 1990s.
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