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Systematic Trading

Systematic Trading

A unique new method for designing trading and investing systems
作者 Robert Carver 2015 325 页数
4.04
100+ 评分
8 分钟
Listen to Summary (8 分钟)

重点摘要

1. 系统化交易克服人类偏见和情绪

“创建一个交易系统可以消除情绪,使坚持一致的策略变得更容易。”

认知偏见阻碍表现。 人类容易受到许多认知偏见的影响,这些偏见会对交易决策产生负面影响。这些偏见包括:

  • 过度自信:认为我们比实际更擅长预测市场
  • 损失厌恶:过久地持有亏损头寸,过早地卖出盈利头寸
  • 近期偏见:对近期事件或数据赋予过多权重

系统化方法提供纪律性。 通过实施基于规则的交易系统,投资者可以:

  • 从过程中移除情绪化决策
  • 在各种市场条件下始终如一地应用经过验证的策略
  • 避免基于恐惧、贪婪或临时市场噪音的冲动交易

回测和验证策略。 系统化交易允许对策略进行彻底的回测,帮助投资者:

  • 了解策略在历史上的表现
  • 识别方法中的潜在弱点或风险
  • 增强对系统在不同市场环境中应对能力的信心

2. 简单的交易规则往往优于复杂的策略

“我不喜欢复杂的拟合方法,我更愿意不使用它们。”

简单性促进稳健性。 简单的交易规则往往比复杂的策略更稳健,不易过度拟合。其优点包括:

  • 更容易理解和实施
  • 在变化的市场条件下不易失效
  • 更有可能捕捉到持久的市场低效

有效的简单规则示例:

  • 趋势跟踪:买入具有正动量的资产,卖出具有负动量的资产
  • 均值回归:买入大幅下跌的资产,卖出大幅上涨的资产
  • 利差交易:从资产之间的收益差异中获利

避免过度优化。 具有许多参数的复杂策略通常会过度优化历史数据,导致未来表现不佳。相反:

  • 专注于公认的、理论上合理的原则
  • 在交易规则中使用有限数量的参数
  • 优先进行样本外测试以验证策略表现

3. 分散投资对管理风险和提高回报至关重要

“分散投资确实是投资中唯一的免费午餐。”

分散投资的好处:

  • 降低整体投资组合风险
  • 提高风险调整后的回报
  • 在不同市场条件下平滑表现

在多个维度上分散投资:

  • 资产类别:股票、债券、大宗商品、货币
  • 地理区域:发达市场、新兴市场
  • 行业:科技、医疗、金融、能源等
  • 交易风格:趋势跟踪、均值回归、利差交易、价值投资

相关性是关键。 专注于组合低或负相关性的资产和策略,以最大化分散投资的好处。用于衡量和优化分散投资的工具包括:

  • 相关矩阵
  • 主成分分析
  • 风险平价方法

4. 通过以理念为先的方法和有限数据避免过度拟合

“我更喜欢提出相对较少的交易规则理念。”

理念为先的方法。 从理论基础出发设计交易策略,而不是从数据中寻找模式。这种方法:

  • 降低在历史数据中发现虚假关系的风险
  • 专注于持久的、可解释的市场现象
  • 提高未来策略成功的可能性

限制策略开发中使用的数据:

  • 使用可用数据的子集进行初始策略开发
  • 保留大量数据用于样本外测试
  • 实施扩展窗口或前向优化技术

警惕数据挖掘陷阱:

  • 避免测试过多的参数或变体
  • 对历史表现异常高的策略保持怀疑
  • 考虑每个策略背后的理论基础和经济原理

5. 仓位管理和风险管理对长期成功至关重要

“决定整体交易风险是设计交易系统时最重要的决策。”

波动率目标。 使用基于每个资产波动率的一致仓位管理方法:

  • 设定目标投资组合波动率(例如,年化10%)
  • 调整仓位以保持各资产的一致风险暴露
  • 定期更新波动率估计以适应变化的市场条件

风险管理技术:

  • 止损:自动退出对你不利的头寸
  • 仓位限制:限制对任何单一资产或策略的最大暴露
  • 基于相关性的仓位调整:减少高度相关资产的仓位

凯利公式和半凯利。 凯利公式提供了最佳下注大小的数学框架,但在实践中:

  • 使用更保守的“半凯利”方法以应对估计误差
  • 根据个人风险承受能力和财务状况调整整体风险

6. 交易成本会显著影响表现

“为了避免这种情况,最好从显著较低的交易资本开始,并逐步增加,直到全部投资。”

交易成本类型:

  • 佣金:支付给经纪人的交易执行费用
  • 点差:买卖价差
  • 滑点:从交易决策到执行之间的价格变动
  • 市场冲击:由自身交易活动引起的价格变化

减少成本的策略:

  • 减少交易频率:尽可能实施长期策略
  • 使用限价单:争取捕捉点差而不是跨越点差
  • 选择流动性强的工具:专注于买卖价差小的资产
  • 优化执行:使用算法交易以最小化市场冲击

成本调整后的表现评估:

  • 回测策略时始终考虑交易成本
  • 根据交易规模和频率设定现实的成本假设
  • 监控实际交易成本并在必要时调整策略

7. 结合多种交易规则以实现稳健表现

“我认为,平衡结合不同环境下有效的交易规则,比任何单一替代方案都要好。”

多策略方法的好处:

  • 在不同市场环境下提高分散投资
  • 减少对任何单一策略或市场低效的依赖
  • 更一致的整体表现

有效结合策略:

  • 使用彼此低相关的策略
  • 根据风险调整后的表现和分散投资的好处分配资本
  • 实施系统化的方法来权重和重新平衡策略

策略组合示例:

  • 趋势跟踪 + 均值回归
  • 动量 + 价值
  • 利差交易 + 波动率策略

8. 定期重新平衡和调整投资组合

“如果从交易账户中提取资金或投资者赎回资金,也应减少交易资本,从而降低现金波动率目标。”

重新平衡的重要性:

  • 维持各资产和策略的目标风险水平
  • 从表现优异的资产中获利
  • 确保分散投资的好处随着时间的推移得以保持

重新平衡方法:

  • 基于时间:在固定间隔(例如,每月、每季度)重新平衡
  • 基于阈值:当分配偏离超过某个百分比时重新平衡
  • 基于波动率:根据资产波动率的变化调整仓位

适应变化的市场条件:

  • 定期审查和更新波动率估计
  • 根据市场环境指标调整整体风险暴露
  • 考虑采用动态资产配置策略

9. 对预期回报和回撤保持现实态度

“假设你的交易会表现不佳,为这种情况做好准备,如果没有发生则感到惊喜。”

设定现实的期望:

  • 多元化投资组合的历史夏普比率通常在0.5到1.0之间
  • 即使是设计良好的系统也会经历显著的回撤
  • 了解过去的表现并不能保证未来的结果

为回撤做好准备:

  • 使用保守的仓位管理以避免在困难时期爆仓
  • 保持足够的现金储备以应对长期回撤
  • 心理上为(以及让你的投资者为)表现不佳的时期做好准备

持续改进:

  • 定期审查和分析系统表现
  • 识别潜在的改进领域而不过度拟合
  • 了解最新的研究和市场发展

最后更新日期:

FAQ

What's Systematic Trading by Robert Carver about?

  • Systematic Strategies Focus: The book introduces a method for designing trading and investing systems that minimize emotional decision-making by using structured rules.
  • Behavioral Insights: It discusses how cognitive biases lead to poor trading decisions and advocates for systematic approaches to counteract these flaws, rooted in behavioral finance principles.
  • Practical Framework: Carver provides a modular framework that allows traders to adapt their strategies based on individual needs and market conditions, including components like trading rules and risk management.

Why should I read Systematic Trading by Robert Carver?

  • Improved Decision-Making: The book helps develop a disciplined approach to trading, reducing the influence of emotions like fear and greed.
  • Comprehensive Guidance: It offers a detailed roadmap for both novice and experienced traders, covering basic concepts to advanced strategies.
  • Real-World Applications: Carver draws on his extensive finance industry experience, providing insights applicable across various asset classes and trading styles.

What are the key takeaways of Systematic Trading by Robert Carver?

  • Systematic Approach: Emphasizes the importance of creating a trading strategy that relies on rules rather than intuition for consistency and discipline.
  • Risk Management: Highlights effective risk management techniques, including setting volatility targets and position sizing based on risk tolerance.
  • Modular Framework: Introduces a framework that allows traders to customize their systems according to preferences and market conditions.

What are the best quotes from Systematic Trading by Robert Carver and what do they mean?

  • Effectiveness of Simplicity: “In every case the accuracy of experts was matched or exceeded by a simple algorithm.” This suggests that simplicity can often yield better results in trading.
  • Cognitive Biases: “Humans should be great traders, but... the research that tells us why humans make bad decisions.” This underscores the need for systematic approaches to mitigate biases.
  • Emotional Benefits: “Creating a trading system removes the emotion and makes it easier to commit to a consistent strategy.” This highlights the emotional control gained through systematic trading.

What is systematic trading according to Systematic Trading by Robert Carver?

  • Defined Methodology: Systematic trading is a structured approach relying on predefined rules and algorithms, aiming to eliminate emotional biases.
  • Components: Includes trading rules, risk management, and position sizing, each playing a crucial role in the strategy's effectiveness.
  • Back-Testing: Emphasizes back-testing trading rules against historical data to validate their effectiveness and avoid overfitting.

How does Systematic Trading by Robert Carver address the flaws of human decision-making?

  • Cognitive Biases: Discusses biases like overconfidence and loss aversion, explaining how they lead to irrational decisions.
  • Behavioral Finance: Incorporates principles from behavioral finance, particularly prospect theory, to explain the effectiveness of systematic trading.
  • Emotional Control: Highlights the importance of emotional control, advocating for a structured approach to avoid impulsive decisions.

What is the modular framework in Systematic Trading by Robert Carver?

  • Flexible Design: Allows traders to customize their systems by separating components like trading rules and risk management strategies.
  • Transparent Components: Designed to be transparent and easy to understand, building trust in the system.
  • Integration of Strategies: Facilitates the integration of multiple trading strategies, enabling diversification and improved performance.

How can I implement the strategies from Systematic Trading by Robert Carver?

  • Start with a Plan: Define trading goals and risk tolerance to guide strategy selection.
  • Use the Framework: Implement the modular framework to create a customized trading system.
  • Back-Test and Adjust: Regularly back-test rules against historical data and adjust strategies based on results and market conditions.

What are the risks associated with systematic trading according to Systematic Trading by Robert Carver?

  • Overfitting Risks: A primary risk is overfitting, where rules are too tailored to historical data and fail in real-time trading.
  • Market Changes: Strategies may become less effective if market conditions change significantly, requiring adaptation.
  • Emotional Challenges: Traders may struggle with sticking to rules during losses, making discipline crucial for success.

How does Systematic Trading by Robert Carver suggest managing risk?

  • Volatility Targeting: Emphasizes setting a volatility target based on trading capital and risk tolerance.
  • Position Sizing: Provides guidelines for determining position sizes based on instrument volatility.
  • Continuous Monitoring: Regularly review and adjust risk management strategies as market conditions change.

What is the no-rule trading rule mentioned in Systematic Trading by Robert Carver?

  • Constant Forecast: Assumes a constant forecast of +10 for all assets, simplifying decision-making.
  • Simplicity in Execution: Focuses on capital allocation rather than predicting market movements.
  • Risk Management: Emphasizes risk management and position sizing to protect capital.

How does Systematic Trading by Robert Carver address trading costs?

  • Standardised Cost Measurement: Introduces a method for standardizing costs, crucial for informed asset trading decisions.
  • Cost Implications: High trading costs can impact performance, with a recommendation to limit costs to a third of expected profits.
  • Turnover and Costs: Discusses how turnover affects costs, recommending a speed limit on trading to avoid excessive costs.

评论

4.04 满分 5
平均评分来自 100+ 来自Goodreads和亚马逊的评分.

读者称赞《系统化交易》因其全面的方法构建交易系统,强调风险管理、仓位控制,并避免常见的陷阱如过拟合和过度交易。该书因其融合了统计工具和怀疑论、实用建议和清晰解释而备受推崇。一些读者认为,对于那些对趋势跟踪和自动化交易感兴趣的人来说,这本书特别有价值。然而,少数批评者认为内容对金融知识丰富的读者来说可能过于基础,或质疑所提方法的有效性。总体而言,该书因其独特且详细的系统化交易方法而获得了积极的评价。

Your rating:

关于作者

罗伯特·卡弗是一位独立的系统化期货交易员、投资者、作家和研究顾问。他撰写了《系统化交易》和《智能投资组合》,这些书籍基于他在AHL(一家大型系统化对冲基金)的经验。卡弗负责创建AHL的基本全球宏观策略并管理其数十亿美元的固定收益投资组合。他的背景包括在CEPR(一个经济学智库)和巴克莱投资银行的工作经历。卡弗拥有曼彻斯特大学和伦敦大学伯贝克学院的经济学学位。他积极使用书中描述的方法进行交易和投资,为读者提供了基于实践经验的见解。

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