Deal could value New York-based company at more than half a billion dollars. Big data startup Dataminr is close to raising $50 million in new venture capital funding, Fortune has learned from a source familiar with the situation. The round likely would value the New York-based company at more than $500 million, and would be led by a large crossover investor like Fidelity Investments or Wellington Management. Founded in 2009, Dataminr analyzes social media data for clients in finance, news and government. A user might get a Dataminr alert about M&A speculation on a particular company, or about political unrest in Thailand.

http://fortune.com/2015/01/30/dataminr/