' Berkshire Hathaway trades at a little more than 1.6x book value right now, using the end-of-Q4 book value number. Book value has likely declined a bit since then; thus the current book value is likely a bit higher than that. Considering where Berkshire Hathaway traded in the past, that is a rather elevated valuation—shares oftentimes traded at 1.2x to 1.5x book value.

So while Warren Buffett has positioned BRK well to benefit from the current sell-off, that doesn't mean that BRK itself is a bargain today—instead, it looks fully valued. In case that changes and shares come down during the current bear market, BRK could be an excellent investment, but at an above-average valuation, relative to its historic valuation range, I do not think that BRK is a must-buy today.'

seekingalpha.com - Berkshire hathaway buffett was right again