'Bond King' Bill Gross and his million dollar stamp collection
Legendary investor Bill Gross, also known as the 'Bond King', has proved his mother right about philately
In May, the legendary investor known as the “Bond King”, Bill Gross, called time on the “total return” strategy that made his fortune in the 1980s. Interest rates are too low relative to the almost 16% seen in 1981 (despite what anyone coming up to renew their mortgage may say) and that approach is now defunct, he said. But Gross is also gloomy about another of his favourite strategic pastimes – stamp collecting. The hobby has “always been a function of kids and their collecting who later on become wealthy adults”, he told Bloomberg TV in June. “But… I don’t think kids are collecting stamps any more.” So, he decided to sell up.
Gross was introduced to philately when his mother gave him an album of stamps in the hope that he could sell them to pay his way through university. The stamps, however, turned out to be largely worthless. Nevertheless, Gross “wanted to prove his mother right, that stamps could be a good investment”, explains Robert A. Siegel Auction Galleries, the auction house in New York that sold Gross’s stamp collection last month.
The goal to which every serious collector aspires is to build a “complete” collection – that is, to acquire at least one of each item within their chosen field of interest. But within the world of US stamps, there can only ever be one winner at a time. That’s because there is just one privately owned 1868 one-cent “Z” Grill stamp in existence. Another has been held by The New York Public Library for almost a century and, to be sure, if the librarians ever decided to sell it, they could buy a lot of books with the proceeds.
MoneyWeek
Subscribe to MoneyWeek today and get your first six magazine issues absolutely FREE
Sign up to Money Morning
Don't miss the latest investment and personal finances news, market analysis, plus money-saving tips with our free twice-daily newsletter
Don't miss the latest investment and personal finances news, market analysis, plus money-saving tips with our free twice-daily newsletter
Gross was outbid when he tried to buy it at auction in 1998. It was snapped up by the president of the Mystic Stamp Company, Donald Sundman, for $935,000. So, in 2005, Gross bought the also incredibly rare 24¢ Inverted Jenny plate block of stamps, accidentally depicting an aeroplane flying upside down, for nearly $3 million, and traded it for Sundman’s “Z” Grill in what was described as the “greatest stamp swap of all time”. Finally, Gross had completed his collection of US stamps. On 14 June, he gave someone else the chance to complete theirs and it cost them almost $4.4 million for the privilege.
The auction record for the most expensive stamp overall is still held by the British Guiana one-cent Magenta from 1856, which fetched $9.5 million in 2014. At least there remains, as Robin Wigglesworth notes for FT Alphaville, one “arena where British securities are more highly valued than American ones”.
This article was first published in MoneyWeek's magazine. Enjoy exclusive early access to news, opinion and analysis from our team of financial experts with a MoneyWeek subscription.
Get the latest financial news, insights and expert analysis from our award-winning MoneyWeek team, to help you understand what really matters when it comes to your finances.

-
Millions at risk of 'unnecessary' tax bill – how to shield your savingsMillions of Brits could be taxed on their savings interest this year as their savings interest exceeds the personal savings allowance. Are you at risk?
-
Savers will have to wait as long as 48 years to build a £1m cash ISA pot if allowance is cutChancellor Rachel Reeves is rumoured to be planning a cut to the cash ISA allowance in the Autumn Budget, making it harder for savers to build wealth. Will you still be able to build a £1 million cash ISA pot?
-
Chen Zhi: the kingpin of a global conspiracyChen Zhi appeared to be a business prodigy investing in everything from real estate to airlines. Prosecutors allege he is the head of something more sinister
-
Canada will be a winner in this new era of deglobalisation and populismGreg Eckel, portfolio manager at Canadian General Investments, selects three Canadian stocks
-
Jim O’Neill on nearly 25 years of the BRICSJim O’Neill, who coined the acronym BRICS in 2001, tells MoneyWeek how the group is progressing
-
Circle sets a new gold standard for cryptocurrenciesCryptocurrencies have existed in a kind of financial Wild West. No longer – they are entering the mainstream, and US-listed Circle is ideally placed to benefit
-
8 of the best converted industrial properties for saleThe best converted industrial properties for sale – from a Victorian railway station in Norfolk to a Grade II-listed former water tower with views of the River Alde
-
More clouds gather over renewable energy trusts – is there any hope for the sector?The outlook for renewable energy trusts has gone from bad to worse this year, with the industry being caught in a 'perfect storm'
-
Should ISA investors be forced to hold UK shares?The UK government would like ISA investors to hold more UK stocks – but many of us are already overexposed
-
Why Scotland's proposed government bonds are a terrible investmentOpinion Politicians in Scotland pushing for “kilts” think it will strengthen the case for independence and boost financial credibility. It's more likely to backfire