Gráficos y análisis del Lemming

domingo, 26 de febrero de 2012

Resiste a la manada, valora solo los números

Jeremy Grantham:


Resist the crowd: cherish numbers only. We can agree that in real life as opposed to theoretical life, this is the hardest advice to take: the enthusiasm of a crowd is hard to resist. Watching neighbors get rich at the end of a bubble while you sit it out patiently is pure torture. The best way to resist is to do your own simple measurements of value, or find a reliable source (and check their calculations from time to time). Then hero-worship the numbers and try to ignore everything else. Ignore especially short-term news: the ebb and flow of economic and political news is irrelevant. Stock values are based on their entire future value of dividends and earnings going out many decades into the future. Shorter-term economic dips have no appreciable long-term effect on individual companies, let alone the broad asset classes that you should concentrate on. Leave those complexities to the professionals, who will on average lose money trying to decipher them.
Remember too that for those great opportunities to avoid pain or make money – the only investment opportunities that really matter – the numbers are almost shockingly obvious: compared to a long-term average of 15 times earnings, the 1929 market peaked at 21 times, but the 2000 S&P 500 tech bubble peaked at 35 times! Conversely, the low in 1982 was under 8 times. This is not about complicated math! 

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