用标准和情绪为股票定价
Pricing stocks with yardsticks and sentiments
摘要：
每天在股票市场交易的专业人士的人类决策可能是一项艰巨的任务。它包括决定是否继续投资或退出受巨大价格波动影响的市场，以及如何在归因于特定股票的新闻或谣言中定价。那么问题来了，专业交易员，谁专门在每天购买和出售大量的给定股票，知道如何正确地定价在给定的一天给定的股票？在这里，我们介绍的想法，人们使用的经验，或“经验法则”，在“码棒”的表现，其他股票在股票指数。相对于这种码尺的表现不足/过度则意味着市场参与者对给定股票的普遍负面/正面情绪。使用道琼斯工业平均指数的经验数据，股票的日常表现有一个明显的趋势，集群周围的措施介绍了码棒。我们说明了情绪，最有可能是由于内幕消息，可以影响一个给定的股票在几个月内的表现，在一种情况下，几年。
英文摘要：
Human decision making by professionals trading daily in the stock market can be a daunting task. It includes decisions on whether to keep on investing or to exit a market subject to huge price swings, and how to price in news or rumors attributed to a specific stock. The question then arises how professional traders, who specialize in daily buying and selling large amounts of a given stock, know how to properly price a given stock on a given day? Here we introduce the idea that people use heuristics, or "rules of thumb", in terms of "yard sticks" from the performance of the other stocks in a stock index. The under- /over-performance with respect to such a yard stick then signifies a general negative/positive sentiment of the market participants towards a given stock. Using empirical data of the Dow Jones Industrial Average, stocks are shown to have daily performances with a clear tendency to cluster around the measures introduced by the yard sticks. We illustrate how sentiments, most likely due to insider information, can influence the performance of a given stock over period of months, and in one case years.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
