# Rail-Splitter Capital Management

Rail-Splitter Capital Management is an Asset Manager based in Winnetka, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Winnetka, United States
- **Region:** North America
- **Address:** Chicago, IL, United States
- **Founded:** 2006
- **Assets under management:** $500M – $1B (Altss estimate)
- **Website:** railsplittercapital.com

## Regulatory record

- **CRD number:** 338394
- **SEC file number:** 801-134698
- **Registration status:** Registered
- **Reports private funds:** No
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/338394

## About

RAIL-SPLITTER CAPITAL MANAGEMENT LLC is an SEC-registered investment adviser in WINNETKA, IL, registered since 2026. The firm employs 3 employees and 3 investment advisers. It is based in WINNETKA, IL.

## Sectors

- Technology
- Consumer
- Healthcare
- Business Services

## People

- Curtis A. Macnguyen — CEO and Managing Partner
- John J. Filosa — Managing Partner

## Questions

### Who runs investment decisions at Rail-Splitter Capital?

Curtis Macnguyen, the CEO and Managing Partner, acts as lead portfolio manager and makes all final investment decisions. John Filosa, the firm's other Managing Partner, oversees research and risk. The two founded the firm together in 2006 and remain the sole owners.

### Does Rail-Splitter participate in private investments, or is it strictly public equities?

Rail-Splitter is exclusively a public-equity manager. It does not invest in venture capital, private equity, or private credit. The firm has run the same concentrated all-cap growth strategy since 2006 without expanding into alternative asset classes.

## Related profiles

- [Raenest](https://altss.com/profile/raenest)
- [Rail Vision](https://altss.com/profile/rail-vision-ltd)

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

Canonical page: https://altss.com/profile/rail-splitter-capital-management-llc

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology