个人金融分析师的绩效、羊群效应和职业关注

Xi Li
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引用次数: 25

摘要

使用一个新的股票推荐数据库,大大扩大了经纪公司和个人分析师的覆盖范围,我检查了个人分析师推荐的投资组合的表现。该分析允许更准确地测量具有广泛风险调整的分析师绩效。我表明,在总体水平上,分析师的投资组合产生显著的异常回报。就个人而言,大量分析师的表现明显优于经风险调整后的基准,而表现明显优于基准的分析师至少是表现明显低于基准的分析师的两倍。异常表现主要在推荐日前2个交易日至推荐后5个交易日的窄事件窗口内产生,事件后收益无明显漂移。此外,分析师的业绩随着推荐的数量、涵盖的股票数量和经纪公司的规模而提高。然而,当他们覆盖的股票超过12-13只时,业绩就会下降。《机构投资者》的全美分析师排名不能预测分析师的业绩。此外,分析师的职业担忧对他们的行为有显著影响。拥有更多声誉资本的分析师建议降低投资组合的风险,并较少偏离羊群。分析师的行为也可以根据其他几个特征来预测。此外,我为当前关于如何改革分析师薪酬的辩论提供了证据。我发现,虽然二级全明星排名与绩效显著相关,但受认可因素和声誉因素的影响更大。作为一种基于绩效的分析师薪酬评估体系,其能力相当有限。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance, Herding, and Career Concerns of Individual Financial Analysts
Using a new database of stock recommendations with substantially expanded coverage of brokerage firms and individual analysts, I examine the performance of portfolios recommended by individual analysts. The analysis allows a more accurate measurement of analyst performance with extensive risk adjustments. I show that at the aggregate level, analyst portfolios generate significant abnormal returns. Individually, a large number of analysts significantly outperform risk-adjusted benchmarks and there are at least twice as many analysts who significantly outperform as analysts who significantly underperform benchmarks. Abnormal performance is generated mainly within a narrow event window from two trading days before the recommendation date to five trading days later, with no significant post-event return drift. In addition, analyst performance improves with the number of recommendations issued, the number of stocks covered, and the size of their brokerage firms. However, performance declines as their coverage goes beyond 12-13 stocks. All-American analyst ranking of Institutional Investor cannot predict analyst performance. Moreover, analysts career concerns have significant impact on their behavior. Analysts with more reputation capital at stake recommend less risky portfolios and deviate less from the herd. Analyst behavior is also predictable on the basis of several other characteristics. Furthermore, I provide evidence for the current debate on how to reform analyst compensation. I find although the II all-star ranking is significantly related to performance, it is affected more by recognition factors and reputation factors. Its capacity to serve as a performance-based evaluation system for analyst compensation is quite limited.
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