Ethan Geismar Head of US Data Strategy Equity Research Jefferies
QuantVision 2025: Fordham’s Quantitative Conference & Data Summit
Buy Tickets
Ethan Geismar serves as the Head of U.S. Data Strategy within the Equity Research division at Jefferies, based in New York. Since joining Jefferies in 2019, he has held multiple roles of increasing responsibility, progressing from Associate Data Scientist to Senior Associate, before taking on his current leadership position in 2022.
At Jefferies, Ethan works directly with fundamental research analysts across global sectors, providing alternative data insights, managing ETL pipelines, and building analytical tools to enhance research output. He also liaises closely with data vendors, evaluating products and advising on improvements, while leading efforts to measure and optimize the firm’s data-centric content strategies.
Prior to his tenure at Jefferies, Ethan gained valuable experience at Redline Trading Solutions as a Software Engineering Intern, where he contributed to low-latency market data systems. He also interned in equity research at both Jefferies and Oppenheimer & Co., focusing on U.S. and European chemicals, specialty pharmaceuticals, and generics.
Ethan earned his Bachelor’s Degree in Computer Science and Engineering from Tufts University, graduating magna cum laude. At Tufts, he was an active leader within the Tufts Financial Group, serving as Head of Education and Co-Vice President. He also participated in TAMID Consulting, 180 Degrees Consulting, and various student-faculty initiatives related to engineering education.
With a background blending data science, financial research, and software engineering, Ethan Geismar is recognized for bringing quantitative rigor and innovative thinking to equity research and market analysis.
QuantVision 2025: Fordham’s Quantitative Conference & Data Summit
