Data Guru: Thomas Ronk

Data Guru

Thomas Ronk is the founder and CEO of, Thomas Ronk has created a proprietary database and trading strategy based on short sale timing and sales data that was not accessible to anyone prior to January 2005. Mr. Ronk managed more than $150-million in equity accounts from 1993 until 1998. He has 27 years of trading experience and is the principal of Century Pacific Investments, a registered investment advisor in California.

As electronic trading has changed, Mr. Ronk began to see a much greater short selling by institutions since the late 1990s. This inspired him to create a reporting tool that keeps track of all trading in every stock in the U.S. on a daily basis.



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