Sabrient Team

David Brown
Sabrient Founder, Chairman, and Chief Market Strategist

David Brown leads Sabrient’s quantitative research and portfolio selection process, and he led the design of Sabrient’s key ranking algorithms. He began his career as a NASA engineer on the lunar landing project, and later moved into the investment world where he has more than 40 years of experience employing his scientific approach to multifactor modeling. He is the former CEO of two public companies, including Telescan, Inc, a firm he founded and took public, and which is now part of TD Ameritrade. He has written several books on investing, and he serves on the Director's Council at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara. David holds a BS degree in engineering from the University of Pittsburgh and an MBA in finance from the University of Houston.

Scott Martindale
Chief Executive Officer and President

Scott Martindale has been on the firm’s leadership team since 2003 and guides company strategy, product development, institutional sales, business development, and client relations for both Sabrient and wholly-owned subsidiary Gradient Analytics. He also writes market commentaries, including the Sector Detector newsletter. He began his career as a structural design engineer with Chevron Corp, where he held various engineering, analyst, and management positions. Scott holds a Series 65 license and has BS and MS degrees in civil engineering from the University of Arizona, and an MBA from California State University-Hayward.

Raymond Chiarello, CPA
Chief Financial Officer and Chief Compliance Officer

Ray Chiarello has more than 25 years in the financial services industry.  He spent 12 years with KPMG, a Big Four accounting firm, performing financial statement audits for a variety of clients, including numerous public companies. After KPMG, Ray served eleven years as CFO for an outsourcing business acquired by GE Capital and later served as both CFO and CEO for an economic development holding company for the Ysleta del Sur Pueblo in El Paso, Texas.  In addition, he has worked for a number of years as a self-employed stock option trader. Ray is a Certified Public Accountant and holds a BS degree in accounting from Virginia Tech.

Jeffrey Brown
Director of Quantitative Research

Jeff Brown manages quantitative research for Sabrient and Gradient Analytics. He has extensive experience as an IT manager in several industries and multiple countries. Over the past 20 years he has served as senior manager either on staff or as an independent contractor for, among others, Dell, Deloitte Consulting, IDEAglobal, AMD, Administaff, National Western Life Insurance, the US Department of State, and the US Department of Defense. Jeff holds a BS degree in computer science from Texas A&M University and an MBA from the University of Houston.

Kassandra Bentley
Director of Corporate Communications

Sandra Bentley is in charge of corporate communications. She is also one of Sabrient's founders. Her background spans more than thirty years in advertising, investor relations, and corporate communications. She is a coauthor, with David Brown, of four books on investing, including All About Stock Market Strategies (McGraw-Hill, June 2002). In 1997 she founded, which was named as one of the Web's top financial portals by Forbes and Fortune magazines. Sandra graduated summa cum laude with a BA degree in English from the University of Houston.

Daniel Vickers
Equity Analyst

Daniel joined Sabrient in 2013. As an equity analyst he is a member of the portfolio team that evaluates and selects stocks for Sabrient’s UITs and ETFs based on a variety of investment strategies that include GARP, defensive equity, dividend, value, growth, and sensitivity to changes in the macro economy. Daniel received a BS degree in finance from the W.P. Carey School of Business at Arizona State University. While working at Gradient Analytics, he conducted internal research to identify factors that demonstrate earnings quality. Daniel also manages the Earnings Busters Portfolio and writes the bi-weekly newsletter.

Matt Bailey
Equity Analyst

Matt Bailey joined Sabrient in 2011. He works closely with David Brown, focusing on data analysis as a spreadsheet expert in support of the portfolio selection process and various investment strategies, including GARP, defensive equity, dividend, value, growth, and sensitivity to changes in the macro economy.

Dezhong (Tony) Wang, Ph.D
Quantitative Analyst

Dezhong Wang jointed Sabrient in February, 2016. He has a comprehensive background in mathematical and financial modeling, both from his educational studies and from his experience as a financial engineer since 2007. He holds a Ph.D in statistics and applied probability, with an emphasis in mathematical and empirical finance, from the University of California, Santa Barbara. He also holds a Ph.D in physics from Jilin University, Changchun, Jilin Province, P.R. China, where he earned his undergraduate and Master’s degrees. Dr. Wang has numerous publications in professional journals.

Braden Brown
Quantitative Analyst

Braden Brown joined Sabrient in 2017 after interning with the company for two consecutive summers. As a Sabrient quantitative analyst, Braden primarily focuses on research and development for new strategies and internal tools. He received a BS degree in computer science from the University of Texas at Dallas.

Connor Cone
Quantitative Analyst

Connor Cone joined the Sabrient team in September 2017. He has extensive experience in software and web development, with expertise in dozens of programming languages, and framework, web and database technologies. Connor is a student at the University of Texas at Dallas where he is studying physics and computer science.


Click here for the Gradient Team bios.