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沃伦·巴菲特:伯克希尔 1990 年致股东信·补录 2

沃伦·巴菲特《伯克希尔·哈撒韦 1990 年致股东信》· 1990 Chairman's Letter · 投资 · 财富

None of these eventualities can be ruled out. The probability of the first two occurring, however, is low and even a meaningful drop in real estate values is unlikely to cause major problems for well-managed institutions. Consider some mathematics: Wells Fargo currently earns well over $1 billion pre-tax annually after expensing more than $300 million for loan losses. If 10% of all $48 billion of the bank's loans - not just its real estate loans - were hit by problems in 1991, and these produced losses (including foregone interest) averaging 30% of principal, the company would roughly break even.

出处: https://www.berkshirehathaway.com/letters/1990.html
定位:1990 Chairman's Letter, additional excerpt 2 · 核对日期:2026-10-19 · 核验:短摘录

白话

巴菲特讨论富国银行面临的风险情景:这些情景不能排除,但前两种(如经济衰退等)概率低,即使房地产价值大幅下跌,管理良好的机构也不太可能陷入大问题。他算了一笔账:富国银行税前年利润超10亿美元,已计提3亿多贷款损失。即使1991年全部480亿美元贷款中10%出问题,损失率30%(含利息损失),公司也仅大致盈亏平衡。这展示了他对银行抗风险能力的信心,以及通过压力测试评估投资安全边际的方法。

上下文

这是1990年巴菲特致股东信,他讨论伯克希尔对富国银行的投资,并分析其风险承受能力。

今日一问

你在投资中是否会对最坏情况做压力测试?如何评估一家公司的安全边际?

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