William J. O'Neil

AAA

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.

INVESTOPEDIA EXPLAINS '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.

RELATED TERMS
  1. Julian Robertson

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

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

    A grouping of financial assets such as stocks, bonds and cash ...
  4. Stock

    A type of security that signifies ownership in a corporation ...
  5. CAN SLIM

    A system for selecting stocks created by Investor's Business ...
  6. Bond

    A debt investment in which an investor loans money to an entity ...
Related Articles
  1. The Christmas Saints Of Wall Street
    Investing Basics

    The Christmas Saints Of Wall Street

  2. A History Of U.S. Monopolies
    Personal Finance

    A History Of U.S. Monopolies

  3. The 5 Most Feared Figures In Finance
    Personal Finance

    The 5 Most Feared Figures In Finance

  4. The Unsung Pioneers Of Finance
    Fundamental Analysis

    The Unsung Pioneers Of Finance

comments powered by Disqus
Hot Definitions
  1. Accounts Payable - AP

    An accounting entry that represents an entity's obligation to pay off a short-term debt to its creditors. The accounts payable ...
  2. Ratio Analysis

    Quantitative analysis of information contained in a company’s financial statements. Ratio analysis is based on line items ...
  3. Days Payable Outstanding - DPO

    A company's average payable period. Calculated as: ending accounts payable / (cost of sales/number of days).
  4. Net Sales

    The amount of sales generated by a company after the deduction of returns, allowances for damaged or missing goods and any ...
  5. Over The Counter

    A security traded in some context other than on a formal exchange such as the NYSE, TSX, AMEX, etc. The phrase "over-the-counter" ...
  6. Earnings Before Interest After Taxes - EBIAT

    A financial measure that is an indicator of a company's operating performance. EBIAT, which is equivalent to after-tax EBIT ...
Trading Center