Thomas F. Callahan

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Thomas Callahan
Occupation Co-head, Cash Management
Employer BlackRock
Location New York
LinkedIn Profile

Thomas F. Callahan is the co-head of the global cash management group at BlackRock,[1] a New York-based provider of global asset management services with nearly $1.3 trillion in assets under management.[2] He joined BlackRock in August 2013after serving for five years as CEO of NYSE LIFFE U.S..[3]

He previously served on the Board of Trustees for the Institute for Financial Markets, a nonprofit industry-supported educational foundation. He also has served as a board member for the Futures Industry Association (FIA).[4]


Callahan was named CEO of NYSE Liffe U.S. in June 2008 after a 15-year career at Merrill Lynch.[5] His appointment by NYSE Euronext came as they prepared to launch NYSE Liffe US, a futures exchange based around a precious metals trading business acquired from CME Group in March of 2008.[6] In 2011, the exchange launched a suite of treasury futures contracts intended to rival those of competing exchange CME Group, but the products have struggled to gain market share. Callahan was also instrumental in the creation of New York Portfolio Clearing, a joint venture with DTCC that allows portfolio margining between cash and derivative positions in fixed income.

Callahan began his career at Prudential Securities in 1992. From April 2005 until joining NYSE Euronext, Callahan served as head of Merrill Lynch Global Financial Futures and Options, where he was responsible for global listed derivatives for debt, equity, FX and commodity products. Callahan rose from a junior trader on the Treasury desk in New York to head of global futures.[7]

While at Merrill Lynch in both New York and London, Callahan held numerous positions including head of Global Debt Financing, co-head of Global Prime Brokerage, head of European Vanilla Interest Rate Trading and Sales, head of Global Money Markets trading. He also worked as a senior trader in ML Government Securities.

John Lothian News Interviews

Tom Callahan of NYSE Liffe U.S. Reflects on NYPC’s First Anniversary & Discusses Competition in the Exchange Space
JLN Managing Editor Christine Nielsen talked with NYSE Liffe U.S. Chief Executive Tom Callahan about main points of focus, the competitive landscape and the soon-to-be-launched DTCC GCF Repo Index. Published Mar. 21, 2012. Watch at[8]

NYSE Liffe U.S. on Sept. 15, 2011 reached the 10-million mark in its interest rate complex, introduced first in March of 2011. Callahan talked with John Lothian News (JLN) Managing Editor Christine Nielsen about the exchange’s growth in these contracts amid a tumultuous economic environment and evolving regulatory landscape. Published Sept. 15, 2011.

Five Minute Interview


Callahan graduated from Harvard University in 1991.


  1. BlackRock Hires NYSE Liffe U.S.’s Callahan in Cash Role. Bloomberg.
  2. BlackRock to Cut iShares ETF Fees. Bloomberg.
  3. Nomination. L'AGEFI.
  4. IFM Board of Trustees. Institute of Financial Markets.
  5. New Releases. NYSE Euronext.
  6. NYSE Euronext Hires Merrill Veteran For US Futures Push. Dow Jones Online Financial News.
  7. A New Market in North America:NYSE Liffe Sees a Golden Opportunity. FIA Magazine.
  8. Tom Callahan of NYSE Liffe U.S. Reflects on NYPC’s First Anniversary & Discusses Competition in the Exchange Space. John Lothian News.