What ETFs Did for Equity Investing, and What Comes Next for Physical Assets
The exchange-traded fund is one of the most consequential financial inventions of the last fifty years. It changed who could access the equity market, how much that access cost, and what level of expertise an investor needed to participate meaningfully. The same structural shift has not yet arrived for physical asset classes. But the conditions that make it possible are now in place.
Before the index
When Jack Bogle launched the Vanguard 500 Index Fund in 1976, Wall Street was openly hostile to the idea. The resistance was not philosophical. It was commercial. Active fund management was a profitable business, and an index fund threatened the revenue model that sustained it.
The cost structure of traditional active management was substantial, and often obscured. The management fee alone averaged around 1.1% annually, but once additional distribution charges and advisor fees are included, total cost of ownership for an actively managed fund could comfortably exceed 2% to 3% per year. Against a historical equity market return of 7% to 10% annually, that is not a small deduction.
The first ETF, the SPDR S&P 500 (SPY), launched in January 1993 and met similar resistance from brokerages that found little revenue in a product charging almost nothing. What it offered instead was something more valuable to investors: diversified exposure to the entire US equity market, at minimal cost, with no specialist knowledge required. By 2024, the average fee investors paid for ETFs had settled at 0.16%, according to Morningstar's annual Fund Fee Study, compared to over 1% for their actively managed counterparts.
The critical insight was not cost alone. It was access. For the first time, an ordinary investor could own the same broad market exposure as the largest institutional funds, without selecting individual stocks, without timing the market, and without needing to understand the underlying businesses in any depth.
From broad markets to specialist ones
What happened next revealed the deeper logic of the structure. Once the infrastructure existed, it could be applied to almost any definable market. ETF assets have grown from under $1 trillion in 2010 to over $11 trillion today, with thousands of funds now covering markets from semiconductors and genomics to clean energy and aerospace.
The ARK Space and Defense Innovation ETF (ARKX) is a useful illustration of what this means in practice. Space and defence is an extraordinarily specialist sector. Understanding the procurement cycles, technology dependencies, regulatory frameworks, and competitive dynamics that drive valuations in that market requires significant expertise. An investor without years of experience in the sector has no credible way to build and manage a portfolio of individual stocks. ARKX, which holds approximately 33 carefully selected positions across the global space and defence industry, charges an annual expense ratio of 0.75% and is accessible from the price of a single share. For a fraction of the cost of traditional active management, and with no minimum ticket beyond one share, an investor gains professionally managed exposure to a complex specialist market.
This is the structural shift that index and rules-based ETFs delivered. You no longer need to be a specialist to access a specialist market.
The gap that still exists in physical assets
Physical asset classes have not had this revolution. Not yet.
The reason is not just a matter of access or cost structure. It is a fundamentally more complex problem to solve.
Fine wine, Scotch whisky, classic cars, fine art: each of these categories has a credible record as an investment asset class. According to Liv-ex data, the Liv-ex 1000 has delivered a total return of approximately 288% since 2004, equating to around 7% annualised across two decades that have included the global financial crisis, the pandemic, and the post-2022 market correction. Alongside that return profile, the index has maintained a correlation of 0.06 to the S&P 500. These are characteristics that belong in a diversified portfolio. But accessing them has always required solving a set of problems that simply do not exist in equity markets.
Physical assets require specialist storage. Investment-grade fine wine, for example, must be held in HMRC-approved bonded warehouses with precisely controlled temperature and humidity, maintained by a small number of specialist operators, including London City Bond, whose sites store hundreds of thousands of cases, and Octavian, which is custodian to over 800,000 cases of fine wine valued at over £1 billion. Fine art may be owned across a fund but physically distributed across private vaults, galleries, and conservation facilities across multiple countries. Classic cars require specific storage, maintenance, and insurance environments. The custody problem in physical assets is not merely about settlement speed. It is about the physical reality of the assets themselves.
Beyond custody, there is the knowledge barrier. Investing in fine wine without guidance means understanding regional hierarchies, vintage variation, production limits, provenance requirements, and secondary market mechanics that take years to develop. Accessing these markets through a traditional fund manager means paying for that expertise in full. Based on a review of actively managed fine wine funds currently operating in the market, total annual costs including management fees and performance charges commonly exceed 2.5%. The investor is dependent entirely on the manager's expertise and relationships. There is no standardised pricing mechanism. There is no independent benchmark to measure performance against.
That last point is where the picture changes.
The benchmark that wine already has
For a product of this kind to function at any meaningful scale, it needs what equities have had for decades: an independently maintained, rigorously constructed benchmark that the market treats as authoritative.
In fine wine, that benchmark is the Liv-ex Fine Wine 1000. Published by the London International Vintners Exchange and tracked since 2000, it is the broadest measure of the investable fine wine market. Its composition is strictly defined: to qualify, a wine must have attracted consistent trading on the Liv-ex platform, must be physically available in the UK market rather than trading only on a speculative forward basis, and must be represented by at least five traded vintages. The index spans seven regional sub-indices covering Bordeaux, Burgundy, Champagne, Rhone, Italy, and the Rest of the World. Prices are calculated using the Liv-ex Mid Price, the midpoint between the current highest bid and lowest offer on the exchange, independently verified by Liv-ex's valuation committee.
The qualifying criteria matter because they define what investment-grade means in practice. This is not a curated list of the most desirable wines. It is a function of which wines the market actually transacts consistently, at verified prices, across multiple vintages. That distinction is what makes it a credible foundation for an index-linked product rather than a collector's wish list.
An important point of context: the Liv-ex 1000 does not carry the breadth or depth of a benchmark like the S&P 500, which tracks the largest companies in the world's deepest equity market. Fine wine is a specialist asset class, and the index reflects that. The opportunity is not to replicate the scale of equity index investing. It is to bring the same structural logic, transparent, rules-based, benchmark-tracked exposure, to a market that has historically been accessible only to those with the specialist knowledge to navigate it directly. Even at a fraction of the scale of equity ETF markets, a structure of this kind would represent a significant expansion of access to an asset class with a genuine long-term investment record.
Why now
The real-world asset tokenization market has grown from approximately $5 billion in 2022 to over $30 billion today, a 380% increase in three years according to RWA.xyz, driven initially by tokenised credit and government bonds. Physical assets, including wine, art, and collectibles, remain a small fraction of that market. But the infrastructure being built to support these structures is precisely what makes the more complex problem of physical asset tokenisation solvable in a way that was not previously achievable.
The cost argument here is direct. Traditional active management of physical assets is expensive not just in fees but in operational infrastructure: custody, insurance, movement of goods, independent valuation, and reporting. Automated smart contracts can handle a significant portion of that operational burden, from compliance and issuance to settlement and distributions, reducing the cost drag that has historically made these structures uneconomic at lower ticket sizes. That cost efficiency is what opens the structure to a wider range of investors, including a generation of capital holders who expect digital access, transparent pricing, and the same operational simplicity they have in equity markets.
The parallel to the ETF revolution is not perfect. Physical assets carry complexities that equities do not. But the direction of travel is clear. As the infrastructure matures and the compliance frameworks around on-chain assets become more established, the barriers that have kept physical asset classes outside the mainstream of institutional portfolio construction will continue to fall. Today, investment into assets like fine wine flows primarily through a relatively small number of direct relationships, specialist managers, and private networks.
An index-linked structure changes that entirely. It creates a standardised, auditable entry point that institutional allocators, family offices, and wealth managers can evaluate, underwrite, and hold within a conventional portfolio framework, opening the asset class to a depth of capital it has never previously been able to access. What took decades in equities, the gradual displacement of high-cost, relationship-dependent active management by transparent, accessible, index-linked structures, is now beginning in physical assets.
The markets that move first will be those with the one ingredient that proved essential in equities: a benchmark robust enough to anchor them.
