Session 11: Technical Analysis

Aswath Damodaran
26 Aug 201417:39

Summary

TLDRThe speaker explores the world of technical indicators in stock trading, acknowledging skepticism but recognizing their value for some investors. They categorize indicators into contrarian, momentum, smart investor, and mystical force-based approaches. The talk emphasizes understanding the behavioral basis of each indicator, testing their effectiveness, managing trading costs, and finding the right holding period for successful investment strategies.

Takeaways

  • 😀 Technical analysis is based on the belief that stock prices reflect all available information and tend to move in trends.
  • 🧐 The speaker is skeptical of technical indicators but acknowledges their effectiveness for some investors.
  • 📉 Market overreactions are a common belief, suggesting that markets often overreact to news, leading to potential reversals.
  • 📈 Odd lot trading, mutual fund cash positions, and investment advisor sentiment are examples of contrarian indicators used to exploit market overreactions.
  • 📊 Normalized P/E ratios, market breadth, support and resistance lines, and moving averages are indicators used to detect shifts in demand and supply.
  • 🌟 Momentum indicators like relative strength and trend lines are used to identify and follow market trends.
  • 📊 Trading volume in conjunction with price can provide additional insights into market momentum.
  • 🤓 'Smart money' indicators, such as specialist short sales and insider trading, are based on the assumption that certain investors have superior information.
  • 🌀 Theories like Elliott Wave and Dow Theory suggest markets are influenced by mystical cycles and patterns, independent of fundamentals.
  • ⚠️ It's important to understand the behavioral assumptions behind a technical indicator before using it.
  • 📝 Testing and verification are crucial when evaluating the effectiveness of a technical indicator.
  • 💰 Consideration of trading costs and time horizons is essential for successful implementation of technical indicators in a trading strategy.

Q & A

  • What is the foundation of technical analysis according to the script?

    -The foundation of technical analysis is the belief that stock prices are determined by demand and supply, and that these prices tend to move in trends which persist for periods of time. Technical analysts also believe that by using technical indicators, they can detect shifts in demand and supply before they happen.

  • What is the main assumption that differentiates technical analysis from the random walk theory?

    -The main assumption that differentiates technical analysis from the random walk theory is that technical analysts believe stock prices move in trends, while random walk theorists do not believe in the existence of such trends.

  • What is the concept of 'odd lot trading' as a technical indicator?

    -Odd lot trading is a measure that looks at the buying patterns of small individual investors who are more prone to overreacting to news. If there is a significant increase in odd lot trading, it might suggest an overreaction to good or bad news, and a contrarian investor might consider selling the stock.

  • How do cash positions in equity mutual funds relate to technical indicators?

    -Equity mutual funds holding cash instead of being fully invested can be an indicator of market sentiment. If mutual funds hold a lot of cash, it might suggest a collective bearish outlook, and a contrarian investor might choose to buy stocks in such a scenario.

  • What is the significance of investment advisor sentiment in technical analysis?

    -Investment advisor sentiment is used as a contrarian indicator. If a high percentage of investment advisors are bullish, it might be a signal to sell stocks, as it is assumed that the majority might be overreacting for the wrong reasons.

  • What is the purpose of using normalized P/E ratios as a technical indicator?

    -Normalized P/E ratios are used to detect if stocks are trading at a higher multiple of earnings than the historical norm. If they are, it might indicate that the stocks are overpriced, and a technical analyst might decide to sell.

  • What does the 'breadth of the market' refer to and how is it used in technical analysis?

    -The breadth of the market refers to the number of stocks advancing compared to the number declining over a given period. A broad market indicates a healthy trend, while a narrow market where a few stocks are driving the index up might be less bullish.

  • What is the significance of support and resistance lines in technical analysis?

    -Support and resistance lines are horizontal lines on a stock chart that represent significant price levels where the stock has historically had trouble moving above (resistance) or below (support). Breaking through these lines can signal a shift in demand and supply.

  • How do moving averages serve as technical indicators?

    -Moving averages smooth out price data over a specific period and can indicate the trend direction. A stock moving above a moving average might be seen as bullish, while moving below it could be bearish.

  • What role does trading volume play in conjunction with price indicators in technical analysis?

    -Trading volume, when used in conjunction with price indicators, can provide insights into the strength of a price movement. A sudden surge in volume with a price increase might signal a strong shift in demand and supply.

  • What are 'smart investor indicators' and how do they work in technical analysis?

    -Smart investor indicators are based on the actions of investors who are believed to have superior knowledge or insight, such as specialists on the New York Stock Exchange or company insiders. Following their actions can provide clues about market sentiment and potential shifts in demand and supply.

  • What are the mystical forces indicators in technical analysis and how do they differ from other indicators?

    -Mystical forces indicators, such as the Elliott Wave or Dow Theory, suggest that markets are driven by underlying patterns or cycles that are independent of fundamentals. They differ from other indicators as they are based on historical patterns rather than current market data or investor behavior.

  • What are some suggestions for using technical indicators effectively?

    -To use technical indicators effectively, one should understand the behavioral basis behind the indicator, verify its effectiveness through testing, manage trading costs, and ensure the holding period is appropriate for the indicator's time horizon.

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関連タグ
Technical AnalysisStock MarketTrading StrategiesPrice PatternsVolume IndicatorsMarket TrendsDemand and SupplyBehavioral FinanceContrarian InvestingMomentum Indicators
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