วันพฤหัสบดีที่ 14 มิถุนายน พ.ศ. 2561

John C. Bogle: Investment philosophy[

Investment philosophy[edit]

Bogle's innovative idea was creating the world's first index mutual fund in 1975. Bogle's idea was that instead of beating the index and charging high costs, the index fund would mimic the index performance over the long run—thus achieving higher returns with lower costs than the costs associated with actively managed funds.
Bogle's idea of index investing offers a clear yet prominent distinction between investment and speculations. The main difference between investment and speculation lies in the time horizon. Investment is concerned with capturing returns on the long-run with lower risk, while speculation is concerned with achieving returns over a short period of time. Bogle believes this is an important analysis to be taken into account as short-term, risky investments have been flooding the financial markets.[10]
Bogle is known for his insistence, in numerous media appearances and in writing, on the superiority of index funds over traditional actively managed mutual funds. He contends that it is folly to attempt to pick actively managed mutual funds and expect their performance to beat a low-cost index fund over a long period of time, after accounting for the fees that actively managed funds charge.[8]



Bogle argues for an approach to investing defined by simplicity and common sense. Below are his eight basic rules for investors:[11]
  1. Select low-cost funds
  2. Consider carefully the added costs of advice
  3. Do not overrate past fund performance
  4. Use past performance to determine consistency and risk
  5. Beware of stars (as in, star mutual fund managers)
  6. Beware of asset size
  7. Don't own too many funds
  8. Buy your fund portfolio - and hold it

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