Billionaire Johann Rupert's Reinet just turned a €22 million gold ETF bet into €80 million

Johann Rupert is best known as the custodian of Cartier, Montblanc and Van Cleef and Arpels. Less discussed is the gold bet his family's investment vehicle quietly made more than a decade ago and has been sitting on ever since, watching it multiply nearly fourfold while most of the financial world chased equity market momentum.

Reinet Investments, the Luxembourg-listed vehicle through which the Rupert family manages its non-Richemont wealth, holds 230,000 shares in SPDR Gold Shares, the world's largest physically backed gold exchange-traded fund. The position was established in mid-2015 at a cost of approximately €22 million. At the end of the March 2026 reporting period, Reinet valued those shares at €86 million, a near-fourfold return in 11 years. At last week's prices the holding had eased slightly to approximately €80 million, still comfortably ahead of the €61 million valuation carried at the end of March 2025.

That is a gain of roughly 264 percent on the original investment over 11 years, a number that looks modest against gold's total return from 2007 to today, which exceeds 600 percent. But as an 11-year return on a single ETF position that required no active management, no commodity trading infrastructure and no operational exposure, it is a quietly impressive outcome.

Rupert, who serves as executive chairman of Reinet, explained the rationale in commentary accompanying the group's most recent financial results. Gold, he said, can over the long term provide a hedge against inflation and offer protection against value changes during turbulent economic and political times. That framing reflects a view of gold not as a speculative trade but as a structural portfolio anchor, a position that the Rupert family has held through multiple market cycles without apparent pressure to realise the gain.

The broader gold market context in which this disclosure arrives is instructive. Gold ETFs globally have seen positive net inflows of nearly $17 billion year to date, according to World Gold Council data published on June 5, even as gold prices have retreated from their peaks amid the ongoing Middle East crisis. Total assets under management in physical gold ETFs stood at approximately $604 billion globally as of the end of May, with total holdings of 4,121 tonnes, just below February's record high.

May was a more cautious month than the months preceding it. Global physically backed gold ETFs recorded modest outflows of $2 billion in May, with Europe the only region to register net inflows. US investors pulled approximately $1.1 billion from gold ETFs during the month, rotating toward technology positions as the AI equity rally continued. Asian outflows of $1.2 billion reflected similar dynamics. The World Gold Council described May inflows as having "slowed to a trickle" following April's more active period.

That context gives Reinet's position a current-relevance dimension beyond the historical return story. The Rupert family is holding a gold ETF stake at a moment when the asset class is caught between its appeal as a geopolitical hedge, the Middle East conflict has been a persistent driver of safe-haven demand this year, and the competing pull of equity markets generating double-digit returns through AI-linked technology stocks. The fact that Reinet has maintained the position through that tension rather than rotating out of it reflects either conviction in the long-term store-of-value thesis or a deliberate policy of not trading around short-term macro noise.

SPDR Gold Shares, managed by State Street Global Advisors, was the first US-listed gold ETF and remains the largest by assets globally. It tracks the price of gold bullion, with each share representing a fractional interest in physical gold held in vaults. Reinet's 230,000-share position, at an ETF price that has moved significantly over the holding period, has been a stable if unspectacular performer by the standards of Reinet's broader portfolio, which is anchored by its 12.6 percent stake in British American Tobacco and a portfolio of private equity fund interests.

Reinet itself trades on the Luxembourg Stock Exchange and the Johannesburg Stock Exchange, where it has been a vehicle for the Rupert family to manage investable capital outside the Richemont luxury goods empire. Johann Rupert's net worth, estimated by Forbes at approximately $11.5 billion in 2026, is primarily driven by his economic interest in Richemont, which has been approaching a R2 trillion market capitalisation on the JSE as Cartier continues to outperform the broader luxury sector. The gold ETF position is a relatively small component of the Reinet portfolio but one that has delivered consistent appreciation without requiring active intervention.