Analyst Team

The Refinitiv Proprietary Research team explores a wide range of investing-related topics to help investment professionals identify emerging trends in the global financial markets. Our analysts use Refinitiv’s content and products to uncover notable developments in every region of the world. Whether you're interested in earnings surprises or commodities demand, aggregate growth estimates or same-store sales, we're confident our research will provoke new investing ideas.

Tim Gaumer

Director of Fundamental Research

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Tim_Gaumer Tim Gaumer is the Global Director of Fundamental Research at Thomson Reuters. He held the same position at StarMine, a company acquired by Thomson Reuters in 2008.

With more than 17 years of experience conducting fundamental analysis, Tim is widely regarded as an expert helping fundamental investor apply innovative analytics in their investment process. He has worked for two independent research firms and most recently as director of research at Jefferson Research & Management. Tim also previously worked at several buy-side firms, most recently at Transamerica Investment Management as an equity analyst and portfolio manager.

Tim is a much sought after speaker regularly presenting at global CFA Societies and industry conferences. He holds the Chartered Financial Analyst designation and has an undergraduate degree in Electrical Engineering and graduate degree in Business Administration.

Jharonne Martis


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Jharonne Martis’s key responsibilities include analysis of actual and estimated retail same store sales data over time and across competitors, providing insight into company outlooks, revealing trend expectations, and yielding clues to anticipated consumer behavior. Her observations and analysis can be found in her monthly research reports, SSS Preview and SSS Review, which are widely distributed to institutional clients and the financial media. Additionally, Martis periodically publishes in-depth Market Insight notes and serves as an internal resource on all issues related to the US consumer.

Martis has worked as a software developer at NetLander, Inc., where she contributed to key projects at the NASA J.F. Kennedy Space Center, and was a Control Desk Analyst Manager at Citigroup. She holds a BS in Management Information Systems and an MBA in Finance.

A widely quoted authority on the U.S. consumer and retail information, including same store sales and corporate earnings, Martis’s research has been featured in The Wall Street Journal, The New York Times, CNN Money, and Barron’s, and she has appeared on CNBC’s Power Lunch and The Nightly Business Report, as well as other financial news outlets.

David Aurelio

Research Analyst

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David_Aurelio David Aurelio is a Senior Manager of Equity Markets Research covering earnings for companies within the S&P 500. His experience includes finance, manufacturing, and engineering within the Semiconductor Capital Equipment and Aerospace industries. He holds MBA and MSF degrees from the Boston College Carroll Graduate School of Management.

Tajinder Dhillon

Research Analyst

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Tajinder_Dhillon Tajinder Dhillon is a Senior Research Analyst based in London who covers North American and European stock markets. As a StarMine ambassador, Tajinder has extensive experience working with Asset Managers, Investment Banks, Pension Funds, Hedge Funds, and Consultancies to apply leading content sets and predictive analytics to the investment process. He has been with Thomson Reuters for six years working in both Toronto and London offices. He holds the Chartered Financial Analyst designation and is a Committee Member of the Marketing and Communications group at CFA UK Society.
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