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Liquidnet is a global institutional dark pool trading network that connects asset managers with liquidity. Liquidnet trades in 45 equity markets for asset management firms who collectively manage US$15 trillion.[1]

Liquidnet is headquartered in New York City and has offices in Boston, San Francisco, London, Hong Kong, Singapore, Sydney, Tokyo, and Toronto.[2]


Liquidnet was founded in April 2001 by Seth Merrin as a wholesale electronic marketplace where institutional investors could trade large blocks of stocks.[3]

Merrin estimated that the network needed at least 100 buy side firms live on Day One to create a critical mass. This number was revised to 75, but the company ultimately launched with only 38 institutions.[3]

Merrin describes his company as “creating marketplaces that enable institutions to trade in size with the efficiency that they sorely need.”[3] In the U.S., Liquidnet’s average execution size of 50,000 shares is 200 times the size of the 250-share average traded in all lit and dark venues. Liquidnet’s average execution in international equities is reportedly 100 times larger than the average.[3]

Liquidnet has an Equity Capital Markets and Issuer Services group which leverages its community of institutional investors to determine institutional demand for a stock.[4]

In October 2011 Liquidnet launched a private shares market.[5] As part of Liquidnet’s equity capital markets division, the Private Shares group works with institutional investors and companies looking to trade private shares.[6]

In 2017, Liquidnet acquired OTAS Technologies, a market-leading analytics platform that delivers actionable market intelligence and context directly to institutional traders and portfolio managers.


SIX Swiss Exchange and Liquidnet launched a platform for non-displayed equity block trading in July 2011.[7] The platform allows SIX Swiss Exchange members and Liquidnet’s buy side members to execute large block trades.[8]

In January 2010, Liquidnet announced a strategic investment in OTR Global LLC, a primary research and brokerage firm.[9]


In December 2011 the Patent and Trademark Office awarded Liquidnet two United States patents relating to its global trading network. Liquidnet currently holds five US patents.[10]

Key people[edit]

Founder and CEO, Seth Merrin Seth is an entrepreneur, global business leader and philanthropist.

Head of EMEA, Mark Pumfrey

Head of APAC, Lee Porter

External links[edit]