Warren Buffett：Berkshire 1992 Letter, Excerpt 3

You will remember that our goal is to increase our per-share intrinsic value - for which our book value is a conservative, but useful, proxy - at a 15% annual rate. This objective, however, cannot be attained in a smooth manner. Smoothness is particularly elusive because of the accounting rules that apply to the common stocks owned by our insurance companies, whose portfolios represent a high proportion of Berkshire's net worth. Since 1979, generally accepted accounting principles (GAAP) have required that these securities be valued at their market prices (less an adjustment for tax on any net unrealized appreciation) rather than at the lower of cost or market. Run-of-the-mill fluctuations in equity prices therefore cause our annual results to gyrate, especially in comparison to those of the typical industrial company.

Source： https://www.berkshirehathaway.com/letters/1992.html
Locator：1992 Chairman's Letter, excerpt 3 · Verified：2026-10-19 · Verification：Short excerpt

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