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雪球·财经有深度

雪球·财经有深度

Business:Investing

2224. 逾六成分析师胜率不足五成,卖方研究的价值在哪?

2224. 逾六成分析师胜率不足五成,卖方研究的价值在哪?

2023-08-08
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欢迎收听雪球和喜马拉雅联合出品的财经有深度雪球国内领先的集投资交流交易一体的综合财富管理平台聪明的投资者都在这里。听众朋友们大家好我是主播匪石,今天分享的内容叫逾六成分析师胜率不足五成,卖方研究的价值在哪?来自就叫姜诚。

据证券时报·数据宝统计,若以股价表现与研报评级的一致性来衡量分析师报告准确度,则有超过六成的分析师胜率在50%以下;若放弃对股价的苛求只考察盈利预测的准确度,业绩预测值在实际值正负10%以内的研报数量占比也不到四成,三分之二的报告高估业绩。这样的统计结果并不令人意外,问题是在这样的结果面前如何评价卖方研究的价值,这要从你想从卖方报告中得到什么说起。

如果你想得到直接的致富密码,跟着报告建议买卖股票,那就不切实际了。一方面即便分析师能够准确预测涨跌,报告发布后涨跌也会立即兑现,而很少给人操作窗口,这是市场效率使然。另一方面,如果分析师有这样的能力,他大概率也就不需要做分析师了,所以严格讲,能够准确预测股价的分析师基本上不存在。

如果要求放低些,只利用分析师的利润预测,自己做投资决策,是否行得通?我看也未必。一是准确的盈利预测也是明牌,很难被利用;二是利润影响因素多样,准确预测很难,尤其是长期的盈利预测基本不可能准确。

那看研报还有什么用?当然有用,但取决于怎么用。

买股票好比开炮,需要瞄准、发射,更缺不了优质的炮弹。不同的投资框架就好像不同的炮型,有人用加农炮,有人用迫击炮就需要不同的炮弹。如果说决策者负责开炮,好的研究就像优质火药,是各种火炮的公约数,人人需要。

指望分析师指导你的买卖,相当于放弃了开炮的权利;直接利用盈利预测,相当于用标准化的炮弹,跟自己的炮型未必匹配。更合理的卖方研究使用方式是从中发现优质火药——即靠谱的基础事实和专业的行业视角。这些来自于报告中的定量数据和定性描述,也来自其他方面的支持,比如组织现场调研和协调专家资源等等。

我所信赖的优秀分析师,通常不是拍着胸脯推荐股票的,而是对标的小心求证和细致刻画的。与这些分析师合作,让我受益匪浅。他们的工作,也是投资决策链条中特别有价值的一环。



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