V2EX idiosyncratic risk

Idiosyncratic Risk

Definition / 释义

特质风险(又称公司特有风险、非系统性风险):只影响某一家公司、某一资产或少数资产的风险来源(如管理层变动、产品召回、诉讼、财务造假等),通常可通过分散投资在投资组合层面显著降低。
(注:与之相对的是 systematic risk 系统性风险/市场风险,无法仅靠分散完全消除。)

Pronunciation (IPA) / 发音(IPA)

/diskrtk rsk/

Examples / 例句

Diversification helps reduce idiosyncratic risk in a portfolio.
分散投资有助于降低投资组合中的特质风险。

The stock fell sharply after the lawsuit, showing how idiosyncratic risk can dominate short-term returns even when the overall market is stable.
该股票因诉讼消息而大跌,说明即使整体市场稳定,特质风险也可能在短期内主导收益表现。

Etymology / 词源

idiosyncratic 源自希腊语:idios(“个人的、私有的”)+ synkrasis(“混合、体质/气质”),引申为“某个个体特有的”。在金融语境中,idiosyncratic risk 就是“某个公司/资产自身特有的风险”。risk 来自中古法语 risque(危险、风险),后进入英语。

Related Words / 相关词

Notable Works / 文学与经典作品中的用例

  • Investments》(Bodie, Kane & Marcus):投资学经典教材中常用该术语区分特质风险系统性风险,并讨论分散化的作用。
  • A Random Walk Down Wall Street》(B. Malkiel,《漫步华尔街》):在讲解指数化与分散投资时,常以“分散可降低非系统性/特质风险”的框架展开。
  • The Intelligent Investor》(B. Graham,《聪明的投资者》):虽不一定频繁用同一术语,但围绕“分散降低单一证券的不确定性”的思想与该概念高度相关。
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