4 Biggest Investor Errors

AAA

The only thing harder than buying a stock is deciding when to sell. Whether you consider yourself a long-term investor or not, it is always good practice to keep Warren Buffett's mantra in mind: "Rule No.1 is: Don't Lose Money. Rule No.2 is: Don't Forget Rule No. 1."

Whether you need to cut your losses or take a profit, read on for some simple tips you can use to help you decide whether to sell.
  1. No results found.
Related Articles
  1. Managing Wealth

    Rules That Warren Buffett Lives By

    You may think the recent financial meltdown changed things, but don't be fooled: those unfussy sayings from the Oracle of Omaha still rule.
  2. Investing

    The Best Books On Warren Buffett

    These six books aren’t as satisfying as owning Berkshire shares has been for the last 45 years, but there is a lot of knowledge and enjoyment in them nonetheless
  3. Insights

    6 Rules From 6 Of The World's Top Investors

    These lessons from Icahn, Buffett, Slim and others will help you with your portfolio and trading style.
  4. Small Business

    Questions For Warren Buffett

    What would you ask this legendary investor, especially if you were told you could only ask five questions?
  5. Investing

    Warren Buffett's Copycats

    The "Oracle of Omaha" is one of the most successful investors of all time. No wonder so many investors are mimicking his investments. Find out who Buffett's imitators are and how they're doing. ...
  6. Trading

    Top 10 Rules For Successful Trading

    Whether you're a novice or an expert, these 10 rules should be the backbone of your trading career.
  7. Managing Wealth

    Buffett's Biggest Mistakes

    This investment guru is still human, and his biggest investing blunders prove it. Find out where he went wrong, and what you can learn from his mistakes.
  8. Investing

    Invest Like Buffett: Building A Baby Berkshire

    Get a piece of Warren Buffett's profit by using Form 13F to coattail his picks.
  9. Insights

    Warren Buffett: InvestoTrivia Part 2

    Take Investopedia's video trivia on Warren Buffett.
  10. Insights

    Warren Buffett: InvestoTrivia Part 3

    Part 3 of Investopedia's Warren Buffett trivia series.
Hot Definitions
  1. Market Capitalization

    The total dollar market value of all of a company's outstanding shares. Market capitalization is calculated by multiplying ...
  2. Frexit

    Frexit – short for "French exit" – is a French spinoff of the term Brexit, which emerged when the United Kingdom voted to ...
  3. Stop-Limit Order

    An order placed with a broker that combines the features of stop order with those of a limit order. A stop-limit order will ...
  4. Down Round

    A round of financing where investors purchase stock from a company at a lower valuation than the valuation placed upon the ...
  5. Keynesian Economics

    An economic theory of total spending in the economy and its effects on output and inflation. Keynesian economics was developed ...
  6. Portfolio Investment

    A holding of an asset in a portfolio. A portfolio investment is made with the expectation of earning a return on it. This ...
Trading Center