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Why Buffett Sold Tesco Too Slowly

  • Investing
  • Buffett
  • Case Studies
  • Investment Failures

Buffett had concerns about Tesco’s management in 2013 but sold only part of the holding. As operating and accounting problems worsened, Berkshire ultimately recorded an approximately $444 million after-tax loss; Buffett identified his delay in selling as an error.

Source dates and applicability

The case mainly covers 2012–2014. Berkshire’s 2014 reporting-year letter is signed February 27, 2015; Tesco announcements date to 2014 and the FCA notice to 2017. As of October 2026, it remains a historical example of delayed selling amid deteriorating accounting information. Market shares and operating conditions refer to that period, without assessing Tesco today. Some percentages still require original-series verification.

Investment Outcome

Because he took too long to sell, an investment that could still have produced a profit ultimately became a failure with a cumulative after-tax loss of approximately $444 million.

1. What the Company Looked Like at the Time

Tesco was a leading UK food retailer at the time. Buffett describes it that way in his 2014 reporting-year letter, which does not fully record his original reasons for buying.

By the end of 2012, Berkshire held 415 million Tesco shares at a cost of about $2.3 billion.

2. Signs of Deterioration Had Appeared, but He Still Sold Too Slowly

In January 2012, Berkshire increased its Tesco stake from 3.21% to 5.08%. Tesco had already issued a profit warning. The percentages still need checking against the original ownership-change notice, and this article has not verified the complete decision record.

The real problems began accumulating before the accounting scandal came to light.

By July 2014, Kantar data showed that Tesco’s U.K. market share had fallen from 30.7% when Phil Clarke took over in March 2011 to 28.9% in June 2014. Over the same period, Aldi’s share rose from 2.1% to 4.7%, and Lidl’s from 2.5% to 3.6%. Cheaper competitors were steadily eating into Tesco’s core business. The individual figures still require verification against Kantar’s original series; the shareholder letter below supports the general decline in market share.

For a low-margin supermarket business that depends on turnover and scale, even a small loss of market share can have a much uglier effect on the income statement.

Buffett did notice the problems; he simply acted too slowly.

According to his own account in the 2014 shareholder letter, he had become somewhat disenchanted with the management in 2013 and sold 114 million shares for a $43 million profit, but retained most of the position.

He later called this behavior dawdling. Munger was less forgiving, calling this kind of behavior thumb-sucking.

3. The Accounting Problems Quickly Turned the Loss into Reality

In 2014, the situation began deteriorating more rapidly.

Buffett wrote in his letter that Tesco’s problems worsened month by month, with falling market share, shrinking margins, and emerging accounting problems.

In September 2014, Tesco publicly acknowledged that its expected first-half profit had been overstated by £250 million, mainly because income from commercial agreements with suppliers had been recognized prematurely. The figure was subsequently revised upward to £263 million, including approximately £145 million of income from earlier years.

In December 2014, Tesco issued its fourth profit warning in five months, saying group trading profit for the 2014–15 financial year would not exceed £1.4 billion. That was far below analysts’ expectations of approximately £1.94 billion and less than half the £3.8 billion earned in 2011–12. The company announcement directly confirms the £1.4 billion guidance; the warning count, analyst consensus and historical comparison still require their contemporary records.

By this stage, it was difficult to explain the sharp fall in the share price as a short-term market misjudgment.

After Berkshire sold all its remaining shares during 2014, the investment ended with an after-tax loss of approximately $444 million. In October of that year, Buffett publicly acknowledged that investing in Tesco had been a huge mistake.

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