Lewis Borsellino: Biography, Career, and Business Insights

Lewis Borsellino’s Profile Summary

Company	DefendEdge
Position	Co-founder
Source of wealth	Trading profits from S&P 500 futures, Eurodollar futures, co-founding Archipelago ECN, business ventures in cybersecurity through DefendEdge.
Also known as	Author, cybersecurity entrepreneur, public speaker.
Age	Unknown
Education	DePauw University – Bachelor's degree
Citizenship	United States
Residence	Chicago, Illinois, USA
Family	Information
Website, Social Media	https://www.linkedin.com/in/lewis-j-borsellino-aa42496

Biography

Lewis Borsellino is a highly experienced trader and entrepreneur with over 40 years in financial markets. Born and raised in Chicago, Borsellino is best known for his time in the S&P 500 futures pit at the Chicago Mercantile Exchange (CME), where he became one of the largest traders. His career spans several major markets, including Eurodollar futures. He co-founded the electronic trading platform Archipelago, which later merged with the New York Stock Exchange. Borsellino is also an author, having written The Day Trader: From the Pit to the PC, a memoir documenting his rise in the industry. Later in his career, he transitioned into cybersecurity, co-founding DefendEdge in 2017. This firm applies predictive algorithms to detect cyber threats, showcasing Borsellino's ability to pivot into tech-driven fields. He has been a regular guest on major financial news networks like CNBC and Bloomberg and has lectured internationally on trading and risk management

Co-founded DefendEdge (cybersecurity); continues work there and remains active as an independent trader, author, and speaker on financial markets and risk management.

How did Lewis Borsellino make money?

Lewis Borsellino makes money in the following areas:

Trading profits from S&P 500 futures, Eurodollar futures, co-founding Archipelago ECN, business ventures in cybersecurity through DefendEdge.
What is Lewis Borsellino net worth?

As of 2026, there is no publicly available and reliable information regarding Lewis Borsellino’s net worth.

What is Lewis Borsellino also known as?

Borsellino is a recognized author, having written several books on trading strategies. His notable work, The Day Trader: From the Pit to the PC, is a widely respected memoir that provides insights into his trading journey. He has also transitioned into cybersecurity, co-founding DefendEdge, a firm specializing in predicting and mitigating cyber threats. Furthermore, he is an experienced speaker, delivering lectures both domestically and internationally on financial markets and risk management

Prominent achievements

Lewis Borsellino was one of the largest S&P futures traders at the CME, co-founded Archipelago ECN, which merged with NYSE, regularly featured on CNBC and Bloomberg for market analysis, authored several respected books on trading, co-founded cybersecurity firm DefendEdge, has lectured internationally

Trading Strategy

Lewis Borsellino was known for scalping S&P 500 futures, using tape reading, market depth, and price momentum to capture short intraday moves. He focused on execution precision and trader intuition built through screen time. Borsellino traded only during the most active sessions, often exiting within minutes. He emphasized discipline, emotional control, and understanding the flow of orders. His edge came from reacting faster than the crowd and managing size effectively under high pressure.

What are Lewis Borsellino’s key insights?

Lewis Borsellino emphasizes resilience, discipline, and the ability to adapt in high-stakes environments like trading. He believes in hard work, staying focused on long-term goals, and remaining patient in the face of volatility. Borsellino also advocates for using technology and data analytics in modern business practices, as seen in his transition to cybersecurity.

Personal life

No detailed or verified public information available regarding his family

Useful insights

Essential books for stock and Forex traders

These essential books provide traders with timeless strategies and practical knowledge to build a strong foundation in stock and Forex markets, and enhance trading success.

Alexander Elder - "Trading for a Living"
- Summary:
  
  Elder’s book is a comprehensive guide that covers the mental, technical, and risk management aspects of trading. It combines psychological discipline, effective trading strategies, and money management techniques to help traders build a sustainable career.
- Why read it:
  
  It is a great starting point for beginners and a valuable resource for experienced traders who want to refine their approach. Elder's focus on the psychology of trading is particularly useful for developing discipline and avoiding common emotional pitfalls.
Jack D. Schwager - "Market Wizards"
- Summary:
  
  In this classic work, Schwager interviews some of the world’s most successful traders, uncovering their strategies, mindsets, and trading philosophies. The book provides a rare glimpse into the minds of top traders across various markets, including stocks, Forex, and futures.
- Why read it:
  
  Learning directly from legendary traders can help you adopt proven strategies and avoid costly mistakes. The interviews offer timeless insights that can benefit both novice and seasoned traders.