Total global spending by asset managers on trading systems will grow 19% over the next four years, from $634 million this year to $757 million by 2010, according to a report, "Trends in Asset Management Trading Technology," by Celent of Boston.

In particular, execution management system (EMS) software, which has been available since the late 1990s, is becoming more sophisticated, packing in more tools and options, according to Celent. An EMS connects traders to exchanges, brokers and electronic crossing networks. Often, it includes a layer of trading analysis, including such features as algorithms, market data and predictive analysis.

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