Dark pool scrutiny no slam dunk for traditional exchanges

LONDON: The regulatory noose is tightening around dark pools, private sharetrading venues that promise anonymity for specialist investors, offering a chance for rival exchanges in the United States and Europe to take back market share.

But traditional stockexchange operators such as LSE Group , NASDAQOMX and Euronext can’t just expect business to drop back into their laps after years of seeing market share slip away to more opaque platforms that offer privacy or to upstart venues with slick technology.