William J. O'Neil


DEFINITION of 'William J. O'Neil'

A noted investor, stockbroker and author. William published the highly acclaimed books: "How to Make Money in Stocks" and "24 Essential Lessons for Investment Success". William is also the founder of Investor's Business Daily, a widely-circulated investment newspaper. At the age of 30, O'Neil was the youngest person at the time holding a seat on the NYSE.

BREAKING DOWN 'William J. O'Neil'

Born in 1933, William received his bachelor's degree in business from Southern Methodist University and then served in the Air Force. He was accepted into Harvard Business School in 1960 but began his career as a stockbroker two years earlier. He was one of the first stockbrokers to integrate the use of computers into his investment research.

  1. Bond

    A debt investment in which an investor loans money to an entity ...
  2. Julian Robertson

    A former hedge fund manager and investor, Julian Robertson founded ...
  3. NYSE Arca

    A securities exchange in the U.S. on which stocks and options ...
  4. Portfolio Management

    Portfolio Management is the art and science of making decisions ...
  5. New York Stock Exchange - NYSE

    A stock exchange based in New York City, which is considered ...
  6. Portfolio

    A grouping of financial assets such as stocks, bonds and cash ...
Related Articles
  1. Investing Basics

    The Christmas Saints Of Wall Street

    Learn how some of world's richest people spread holiday cheer year-round.
  2. Personal Finance

    A History Of U.S. Monopolies

    These monoliths helped develop the economy and infrastructure at the expense of competition.
  3. Personal Finance

    The 5 Most Feared Figures In Finance

    Gates, Soros, Icahn, Rockefeller and Morgan caused chills on Wall Street.
  4. Fundamental Analysis

    The Unsung Pioneers Of Finance

    We all know names like Rockefeller, but there are other influential pioneers of finance in America's history.
  5. Options & Futures

    The Kingpin Of Wall Street: J.P. Morgan

    From robber baron to the hero of the Panic of 1907, this man helped shape Wall Street as we know it.
  6. Mutual Funds & ETFs

    4 Mutual Funds Warren Buffet Would Buy

    Learn about four mutual funds Warren Buffett would invest and recommend to his trustee, and discover detailed analysis of these mutual funds.
  7. Investing News

    4 Value Stocks Worth Your Immediate Attention

    Here are four stocks that offer good value and will likely outperform the majority of stocks throughout the broader market over the next several years.
  8. Mutual Funds & ETFs

    The 4 Best Buy-and-Hold ETFs

    Explore detailed analyses of the top buy-and-hold exchange traded funds, and learn about their characteristics, statistics and suitability.
  9. Investing

    How ETFs May Save You Thousands

    Being vigilant about the amount you pay and what you get for is important, but adding ETFs into the investment mix fits well with a value-seeking nature.
  10. Bonds & Fixed Income

    High Yield Bond Investing 101

    Taking on high-yield bond investments requires a thorough investigation. Here are looking the fundamentals.
  1. What licenses does a hedge fund manager need to have?

    A hedge fund manager does not necessarily need any specific license to operate a fund, but depending on the type of investments ... Read Full Answer >>
  2. Can mutual funds invest in hedge funds?

    Mutual funds are legally allowed to invest in hedge funds. However, hedge funds and mutual funds have striking differences ... Read Full Answer >>
  3. When are mutual funds considered a bad investment?

    Mutual funds are considered a bad investment when investors consider certain negative factors to be important, such as high ... Read Full Answer >>
  4. What fees do financial advisors charge?

    Financial advisors who operate as fee-only planners charge a percentage, usually 1 to 2%, of a client's net assets. For a ... Read Full Answer >>
  5. What does a high turnover ratio signify for an investment fund?

    If an investment fund has a high turnover ratio, it indicates it replaces most or all of its holdings over a one-year period. ... Read Full Answer >>
  6. What is the difference between passive and active asset management?

    Asset management utilizes two main investment strategies that can be used to generate returns: active asset management and ... Read Full Answer >>

You May Also Like

Hot Definitions
  1. Real Estate Investment Trust - REIT

    A REIT is a type of security that invests in real estate through property or mortgages and often trades on major exchanges ...
  2. Section 1231 Property

    A tax term relating to depreciable business property that has been held for over a year. Section 1231 property includes buildings, ...
  3. Term Deposit

    A deposit held at a financial institution that has a fixed term, and guarantees return of principal.
  4. Zero-Sum Game

    A situation in which one person’s gain is equivalent to another’s loss, so that the net change in wealth or benefit is zero. ...
  5. Capitalization Rate

    The rate of return on a real estate investment property based on the income that the property is expected to generate.
  6. Gross Profit

    A company's total revenue (equivalent to total sales) minus the cost of goods sold. Gross profit is the profit a company ...
Trading Center
You are using adblocking software

Want access to all of Investopedia? Add us to your “whitelist”
so you'll never miss a feature!