Knight Frank’s 20th-anniversary edition of The Wealth Report, released this spring, puts the global ultra-high-net-worth population at 713,626 — a 32 percent increase since 2021 and an addition of roughly 89 new UHNWIs every day. Read together with Bain & Company’s 24th Altagamma luxury study (€358 billion personal luxury market, broadly flat after a 2 percent 2024 contraction), the two anchor data points draw a clear picture: the headcount of capital is expanding while the assets that capital wants are not.
That gap is the story.
The 3.2 Percent Prime Residential Print
Knight Frank’s Prime International Residential Index recorded a 3.2 percent average annual rise across 100 global luxury markets in 2025, a result the firm frames as a “great decoupling” from mainstream economic indicators. Tokyo led at +58.5 percent, fueled by a weak Yen that turned new-build luxury into a dollar-denominated value play. Dubai printed +25.1 percent, its fourth straight year as the world’s most active super-prime hub. New York and London remained inside the top-five global cities by UHNWI density, while Mumbai, Delhi, and Bengaluru moved up the rankings on the back of an expanding Indian wealth base.
The Luxury Investment Index Quietly Stabilizes
The Knight Frank Luxury Investment Index (KFLII) — Knight Frank’s basket of ten collectible categories spanning art, watches, jewelry, wine, classic cars, handbags, rare whisky, coins, furniture, and colored diamonds — registered a marginal -0.4 percent in 2025, signaling stabilization after two years of broad correction. Watches, jewelry, and art held mid-band; classic cars and rare whisky weakened; handbags continued their multi-year upward grind. The directional read for asset-backed lenders is straightforward: the basket is no longer falling, and the May 2026 marquee auction prints in New York and Geneva, including Christie’s $630.8 million S.I. Newhouse sale, Sotheby’s $303.9 million Modern Evening, and Phillips Geneva XXIII’s $96.3 million historic-record watch tally, suggest the top is firming.
What Lenders Actually Watch
The KFLII is a directional index, not a lending tape. For loan-to-value work, the operative read on the 2026 Wealth Report is structural: a 32 percent five-year increase in the UHNWI population, against a luxury goods market that is flat and a luxury investment index that is stabilizing, points to durable demand pressure on the very narrow band of trophy assets that comp out. That dynamic supports collateral values on signed pieces, museum-grade timepieces, single-owner art collections, branded handbags with provenance, and prime residential at the upper $20-million-plus band.
It also supports the fastest-growing borrower segment: liquidity-rich UHNWIs who own significant collectibles and prefer asset-backed credit to outright sale. Bain’s €358 billion 2025 luxury goods print masks the actual concentration of asset value — collectibles, fine art, and trophy real estate sit outside that figure and continue to compound. The Knight Frank data simply confirms the count of borrowers eligible to draw against those assets is now nearly three-quarters of a million households worldwide.
The 2026 Read
The 2026 Wealth Report’s structural conclusion is that “the great decoupling” of prime residential from mainstream economic indicators looks durable, and the same logic now applies to the upper band of the collectibles index. For the asset-lending side of the luxury market, a flat-to-stabilizing KFLII paired with a 32 percent five-year UHNWI expansion is the cleanest read available on demand for liquidity against trophy assets. The supply of those assets has not expanded at anywhere near the same rate, which is why prime watch and signed-piece auction prints continue to hammer above estimate while the broader luxury goods market sits flat.
From the Borro desk: The May 2026 marquee fortnight in New York generated $1.8 billion across three houses, confirming the top-of-market firming the KFLII implies.
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