# GX2 Spread Markets

GX2 Spread Markets is an Endowment / Foundation based in Chicago, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Chicago, United States
- **Region:** North America
- **Address:** Via Sant Eufemia 13
- **Founded:** 1991
- **Assets under management:** Undisclosed
- **Website:** www.lafondazione.com

## Regulatory record

- **Reports private funds:** No

## About

GX2 Spread Markets maintains operating businesses in financial services. David Jaberg serves as President and CEO while Jason Nazarof acts as co-founder and CTO. The firm owns GX2 Systems outright through South Street Securities Holdings. GX2 deploys technology for relative value trading in U.S. Treasuries and cleared derivatives. Confirmed holdings include full ownership of GX2 Systems. The firm participates in futures and options markets and maintains sponsorship at FIA Expo. The firm lists clearing relationships with Mirae Asset Securities and Wedbush Securities. Legal counsel includes Milbank and Katten Muchin Rosenman. No additional offices or professional headcount figures appear in available records. GX2 operates as a registered broker-dealer with direct ownership of execution platforms rather than through external fund vehicles. This structure ties technology development to trading activity under one holding company.

## Sectors

- Financial Services

## People

- David Jaberg — President & CEO
- Jason Nazarof — Co-founder and CTO

## Questions

### Who runs investment decisions at GX2 Spread Markets?

David Jaberg serves as President and CEO. Jason Nazarof acts as co-founder and CTO. Both hold operational roles in the trading platform business.

### Does GX2 Spread Markets participate in fund commitments or only direct deals?

GX2 focuses on direct ownership of operating businesses and proprietary trading systems. No external fund commitments are recorded.

### What investment stages does GX2 Spread Markets typically target?

The firm operates its own execution platforms rather than targeting venture or growth stages in external companies.

### How is GX2 Spread Markets related to South Street Securities Holdings?

GX2 Systems is held through South Street Securities Holdings. James Tabacchi leads the holding company as President and CEO.

### Where does GX2 Spread Markets maintain regulatory memberships?

The firm holds memberships in FINRA, SIPC, NFA and the Futures Industry Association.

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Last updated: 2026-06-03T20:00:00.000Z

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