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Proof Trading

Proof Trading is a YC Summer 2019 (S19) company. Based in New York, NY, USA. Team of 7.

  • Finance
Website (opens in a new tab)View on ycombinator.com (opens in a new tab)

About Proof Trading

GPAgent's own fund-neutral profile, written from public information. Updated Oct 5, 2026.

Summary

Proof Trading operates as an institutional equities broker-dealer, executing stock trades on behalf of institutional clients such as asset managers and hedge funds. It handles the order routing and execution work that institutions would otherwise manage through traditional full-service brokers or in-house trading desks.

Go-to-market

Institutional investors, including buy-side firms, are the direct customers, engaging Proof Trading through a broker-dealer relationship to handle their equity order flow.

From the Y Combinator listing

How Proof Trading describes itself in Y Combinator's public directory. Original listing (opens in a new tab)

Institutional equities broker-dealer

Facts

Batch
YC Summer 2019 (S19)
Industry
Fintech / Fintech -> Banking and Exchange
Location
New York, NY, USA
Team size
7
Status
Active
Stage
Early
Website
prooftrading.com (opens in a new tab)

Founders (2)

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