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Bogleheads® wiki
- Investing Advice Inspired by John Bogle


John Bogle at BH16.jpg
John Bogle
(1929 - 2019)
Forum posts
Welcome to the Bogleheads® wiki, a collaborative undertaking by members of the Bogleheads Community. This wiki is a reference resource for investors. Bogleheads emphasize starting early, living below one's means, regular saving, broad diversification, and sticking to one's investment plan.

If all this seems a bit overwhelming, relax and don't panic. A good place to begin is getting started. Returning visitors may be interested in our new pages.

Getting started

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Today's featured article

Understanding and avoiding behavioral pitfalls will ultimately have a greater impact on investing success than any other factor. Since emotions and subsequent behavioral pitfalls are frequently associated with miscalculating risk tolerance and asset allocation, the new investor should be aware of behavioral pitfalls before making asset allocation decisions.

“Your investing brain does not just add and multiply and estimate and evaluate,” says Jason Zweig in his book, Your Money and Your Brain. “When you win, lose, or risk money, you stir up some of the most profound emotions a human being can ever feel.” (more...)

This week in financial history

April 5:

  • 1928 - The Société anonyme de la Bourse de Luxembourg was incorporated as a limited company, establishing the Luxembourg Stock Exchange. Source: History
  • 2012 - The president signed the Jumpstart Our Business Startups (JOBS) Act into law, which allows small businesses to use crowdfunding for seeking actual investors. It can raise up to $1 million this way. Source: JOBS Act opens fundraising doors for small firms

April 6:

  • 1988 - The Standard & Poors 500 stock index was overhauled. Instead of being made up of 400 industrial stocks, 40 utilities, 40 financial stocks and 20 transportation issues, its industry weights were set to float freely, so that stocks from all sectors are represented by market value. Source: S&P 500 2001 Directory (Standard & Poors, New York, 2001), p. 10.
  • 1998 - The Dow Jones Industrial Average closes over 9,000 for the first time. Source: Closing milestones of the Dow Jones Industrial Average

April 7:

  • 1720 - King George I signed the South Sea Bill, granting virtual monopoly powers of financing to the South Sea Co. The stock closed the day at 335, up from less than 100 a few weeks earlier. By year-end, many investors had lost 80% of their money. Sources: John Carswell, The South Sea Bubble (The Cresset Press, London, 1960), pp. 124, 127.; and Charles Mackay, Memoirs of Extraordinary Popular Delusions and the Madness of Crowds, Chapter Two: The South Sea Bubble.
  • 1792 - The first market crash in the US hit rock bottom on April 7, 1792. The price of 6% United States bonds slumped to 100, down from 127.50 on January 31st, a 22% plunge in just 13 weeks. Source: David J. Cowen, The First Bank of the United States and the Securities Market Crash of 1792, The Journal of Economic History, December, 2000 (Vol. 60, No. 4), pp. 1044, 1051.
  • 1958 - The U.S. Ninth Circuit Court of Appeals upheld a ruling that affirmed the right of a fund adviser (Insurance Securities Incorporated, or ISI) to sell a controlling interest in its stock at a premium to its book value. This opened the flood gates to public ownership of management companies. Source: John C. Bogle remarks, February 24, 2006, (U.S. Court of Appeals decision)

April 8:

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April 11:

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Our Canadian sister site, Financial Wisdom Forum, and its finiki, the Canadian financial wiki has a similar focus, many like-minded members, and may be of interest as well.

We also have a sister site in Spain, Bogleheads® España (en español).

Contributing to the wiki

Anyone can read the wiki. If you would like to edit it, you must first join the Bogleheads forum. Once you've joined, send a private message requesting access, and you can then become an editor. Information on editing the wiki is available on the left sidebar of every wiki page. Suggestions are welcome by posting in Suggestions for the Wiki.

If you see content in need of improvement, or a new page on a topic not yet covered, consider becoming an editor so that you can contribute to the site. If you find yourself writing a reply to a forum question that's been discussed a number of times before, consider creating a wiki page with the answer. Then you and others can reply to subsequent questions on that topic with a link and a quote of your text. That way, the Bogleheads Community both preserves our knowledge base and makes it more accessible, particularly to those using search engines.