What sardines can teach investors about today's markets

A California tale of “eating sardines” and “trading sardines” can help us divide investments into speculative and real, says Merryn Somerset Webb. Something that's very useful when looking at today’s markets.

Plates of sardines
It’s time for “eating” sardines
(Image credit: © Getty Images)

In his very good book on investing, Margin of Safety, Seth Klarman tells the story of a California speculative mania – in sardines. The fish had disappeared from their usual waters off Monterey, the shortage pushed up prices, and before long there was an enthusiastic trade under way in tinned sardines. The “you-can’t-go-wrong-with-sardines” story spread; prices soared.

Then one day a buyer (a hungry and clearly exceptionally price-insensitive one) decided to open a can and eat a sardine or two. He was fairly instantly unwell – and complained to his supplier. Why would you open the can?, asked the seller. “These are not eating sardines, they are trading sardines.”

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Merryn Somerset Webb
Former editor in chief, MoneyWeek