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老巴1992股东信:
Though the mathematical calculations required to evaluate
equities are not difficult, an analyst - even one who is
experienced and intelligent - can easily go wrong in estimating
future "coupons." At Berkshire, we attempt to deal with this
problem in two ways. First, we try to stick to businesses we
believe we understand. That means they must be relatively simple
and stable in character. If a business is complex or subject to
constant change, we're not smart enough to predict future cash
flows. Incidentally, that shortcoming doesn't bother us. What
counts for most people in investing is not how much they know, but
rather how realistically they define what they don't know. An
investor needs to do very few things right as long as he or she
avoids big mistakes.
Second, and equally important, we insist on a margin of safety
in our purchase price. If we calculate the value of a common stock
to be only slightly higher than its price, we're not interested in
buying. We believe this margin-of-safety principle, so strongly
emphasized by Ben Graham, to be the cornerstone of investment
success.
$伯克希尔-哈撒韦A(BRK.A)$ $贵州茅台(SH600519)$