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Customer Quote by William O'Neil

“It is one of the great paradoxes of the stock market that what seems too high usually goes higher and what seems too low usually goes lower.” quote by William O'Neil
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“It is one of the great paradoxes of the stock market that what seems too high usually goes higher and what seems too low usually goes lower.”

William O'Neil

About This Quote

Source Book: How to Make Money in Stocks by William O'Neil, 2000

Market prices often trend beyond rational expectations, creating self‑reinforcing moves that defy simple valuation.

In simple terms: High prices rise, low prices fall.

Key Takeaway

Beware momentum traps.

Themes

finance psychology markets

Mood

cautious analytical

Type

advisory observational

When to use this quote

  • trading decisions
  • portfolio management
  • risk assessment

Key Concepts

self‑fulfilling prophecy behavioral bias

Questions to Reflect On

  • How do you differentiate hype from fundamentals?
  • When should you trust contrarian signals?
A Different Perspective

Momentum can amplify errors and lead to bubbles.

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