IEX, the dark pool operator featured in the recent book "Flash Boys," is in talks to raise new capital so it can fund the process of becoming a stock exchange, Dow Jones reported on Friday, citing sources familiar with the matter.
According to the report, the new funds would value the company at as much as $300 million.
But a source familiar with the possible deal told CNBC that while IEX has received inbound investor interest in the wake of the book, they haven't been actively soliciting investors. The valuation of the possible deal is still very much a question mark, the source added.
—With reporting by CNBC's Eamon Javers