William O’Neil, a name that echoes in the investing world, didn’t start his career with a silver spoon. Born in 1934, he grew up in a humble environment, learning the value of hard work and determination from an early age. His journey began in the late 1950s when he joined the U.S. Army, serving honorably before transitioning into the world of finance.

After his military service, O’Neil found himself working as a stockbroker, a role that allowed him to hone his skills and gain a deep understanding of the market. It was during this time that he developed his unique approach to investing, one that focused on finding and investing in stocks with strong fundamentals and positive momentum. This approach, later known as the “O’Neil Disciples” method, laid the foundation for his future success and fame.

William O’Neil’s Current Net Worth

As of 2025, William O’Neil’s current net worth is estimated to be around $2 billion, according to the latest available information.

William O’Neil’s Career

William O’Neil, a prominent figure in the investment world, is the founder of O’Neil Capital Management. He is renowned for his expertise in technical analysis, having developed the CAN SLIM investing method. O’Neil began his career as a stockbroker in the 1960s and later founded his investment firm in 1988. He has authored several books on investing, including the bestseller “How to Make a Fortune in the Stock Market.”

Other Ventures

In addition to his investment firm, O’Neil is also the founder of the William O’Neil + Co. Inc., a publishing company that produces investment newsletters and educational materials. He has also been involved in philanthropic efforts, including establishing the O’Neil Foundation, which supports various charitable causes.

Assets

William O’Neil’s assets primarily consist of his stakes in O’Neil Capital Management and William O’Neil + Co. Inc. He also owns a significant portfolio of stocks, primarily held through his investment firm. O’Neil is known to practice what he preaches, investing in companies that meet his CAN SLIM criteria.

Annual Income

William O’Neil’s annual income is not publicly disclosed. However, as the founder and majority stakeholder of O’Neil Capital Management and William O’Neil + Co. Inc., it can be inferred that his income is substantial. His income likely comes from the profits generated by these companies, as well as any dividends or capital gains from his personal investments.

Frequently Asked Questions about  William O Neil

Frequently Asked Questions about William O’Neil

1. What is William O’Neil’s net worth?

William O’Neil’s net worth is estimated to be around $1.5 billion.

2. How did William O’Neil make his fortune?

William O’Neil made his fortune primarily through his investments in the stock market and his successful career as a stockbroker and investment advisor.

3. What is William O’Neil’s investment strategy?

William O’Neil is known for his CANSLIM investing strategy, which focuses on finding companies with strong earnings growth and positive market momentum.

4. What is the CANSLIM investing strategy?

CANSLIM is an acronym that stands for Current Quarterly Earnings, Annual Earnings, New Products, Services, Management, and Institutional Sponsorship. The strategy involves finding companies that excel in these areas.

5. What companies has William O’Neil invested in?

William O’Neil has invested in a wide range of companies throughout his career, including Apple, Microsoft, and Amazon.

6. What is William O’Neil’s role at Investor’s Business Daily?

William O’Neil is the founder and chairman of Investor’s Business Daily, a financial news and research organization.

7. When was Investor’s Business Daily founded?

Investor’s Business Daily was founded in 1984 by William O’Neil.

8. What is William O’Neil’s educational background?

William O’Neil graduated from the University of Southern California with a degree in business administration.

9. What awards has William O’Neil received?

William O’Neil has received several awards, including the Ellis Island Medal of Honor and the Horatio Alger Award.

10. What books has William O’Neil written?

William O’Neil has written several books on investing, including “How to Make a Fortune in the Stock Market” and “24 Essential Lessons for Investment Success.”