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About
Ethan Pronev worked on trading systems at Jane Street and Citadel Securities, and is a computer science graduate from the University of Waterloo. He is co-founder of Approxima.
Founder at ApproximaYC W26
Intro paths
Ethan went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Diana Hu, General Partner at Y Combinator — the partner who ran Approxima's batch and knows the company first-hand. YC profile ↗
In turn, Ethan can intro founders to Approxima's investors below.
Approxima's investors · 2
Co-founders at Approxima
Frequently asked questions
- Who is Ethan Pronev?
- Ethan Pronev worked on trading systems at Jane Street and Citadel Securities, and is a computer science graduate from the University of Waterloo. He is co-founder of Approxima.
- Where does Ethan Pronev work?
- Ethan Pronev is Founder of Approxima.
- What companies did Ethan Pronev found?
- Ethan Pronev founded Approxima.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
University of Waterloo mafia428
Also came through, then founded or led a company.
International Baccalaureate mafia48
Also came through, then founded or led a company.
Citadel Securities mafia21
Also came through, then founded or led a company.
Squarepoint Capital mafia10
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Approxima's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights