Alternative Asset Classes: The Expanding Investable Universe

Alternative investments are defined by contrast. Traditional portfolios are built from publicly traded equities, fixed income and cash; an alternative is anything that sits outside that set and behaves differently from it. The defining characteristics are consistent across the literature: lower liquidity, a longer holding period, less daily price transparency, and returns that are less tied to the public market cycle. Those features are the reason allocators hold them: uncorrelated return streams and an illiquidity premium that listed markets do not offer.

The canonical taxonomy is compact. Most institutional sources converge on five core classes, even where retail listicles stretch the count to seven or nine by separating sub-strategies. The table below sets out the established classes and what each contributes to a portfolio.

The "five versus seven versus nine classes" question turns on how finely sub-strategies are split, not on any real disagreement; the five above are the backbone, and the rest are subdivisions of them. On the perennial question of which is the best alternative asset class to start from, the answer depends on the mandate, but by sheer scale, private equity remains the largest alternative asset class, a point iCapital makes in its category overviews. The count matters less than the direction of travel, and the direction is where the taxonomy alone stops being a sufficient guide.

The established classes are the part everyone lists. The more consequential development gets less attention: the investable universe is widening, and three areas at its edge are moving from niche to institutional. This is a frontier opening up, and the classic portfolio is being extended by it rather than replaced.

Private credit: the fastest-growing class you can't buy on an exchange

Private credit has moved from the margins of the alternatives universe to one of its largest and fastest-growing segments. As banks retrenched from middle-market lending after the post-2008 reforms, non-bank lenders stepped into the gap, and allocators followed the yield. The appeal to a family office is structural rather than tactical: floating-rate income, direct security over the borrower, and a return stream with limited correlation to public credit. The cyclical caveat is real, in that deployment cools when rates and spreads move, but the structural expansion of the asset class has compounded across cycles, and the recent year-on-year softening in new lending is better read as cyclical than as a reversal of the trend. It is also the clearest example of the frontier's defining feature: you cannot buy it on an exchange, which is precisely why allocators reach for it, since the return comes from sourcing and underwriting rather than from a quoted price. The mechanics of how the class works are set out in the firm's view on private credit investing, and it sits at the centre of how IMS Capital Management deploys institutional capital.

Litigation finance, royalties and IP: sizing the fragmented frontier

Further out sits a cluster of genuinely uncorrelated exposures. Litigation finance, royalties and IP share one quality that allocators prize: their returns are tied to legal outcomes or contractual cash flows, not to the equity cycle at all. Litigation finance funds the costs of a legal claim in exchange for a share of any award. Music and media royalties pay an income stream as a catalogue is used. Intellectual property is licensed for recurring fees. Each is real, investable today, and difficult to size precisely, because the market estimates are fragmented and best given as ranges. The point for an allocator is not the exact figure but the character of the exposure: income and return that sit outside the market beta most portfolios are already saturated with. A litigation-finance return depends on a court, not a central bank; a royalty pays whether equities rise or fall. That independence is rare, and it is why the exposure earns a place in a diversified book. The firm treats these areas neutrally, as portfolio tools rather than causes, and examines them in detail in its work on litigation finance, royalties and IP.

Sports franchises as an institutional asset

The third frontier is the most visible. Major sports franchises have re-rated into scarce, appreciating assets, and the ownership structure around them has institutionalised, as leagues that once barred outside capital now admit private equity and family-office money. Sports franchises as an asset class combine scarcity, media-rights cash flows that have grown for two decades, and a trophy-asset premium that behaves unlike anything in a conventional portfolio. The supply is fixed in a way few assets are: a league has a set number of teams, and that scarcity underwrites much of the long-run appreciation. Valuations should be read as point-in-time and refreshed against current league data rather than asserted. For an investor-facing group, the relevance is direct: the credit and capital structures behind clubs, athletes and stadiums are exactly the territory IMS Sports Capital operates in.

Spotting the frontier is the easy part; reaching it is harder. Allocators access alternatives through three broad routes, each with a different trade-off between control and convenience. Commingled funds offer diversification and a manager's selection discipline for a fee and a lock-up. Co-investment lets a family office put capital alongside a manager in a single deal, with more control and lower aggregate cost but greater concentration. Direct investment offers the most control and the most demanding diligence burden, and is the preserve of larger, more capable offices. The route chosen is rarely a matter of taste; it follows the size of the office, the depth of its team and the mandate it is investing against, and most allocators run a blend of all three. The illiquidity that runs through them is not a flaw to be tolerated but the source of the premium; it is what the return is paid for, and the market prices it accordingly. The same logic increasingly reaches further down the market, as defined-contribution and pension structures begin, cautiously, to admit private-market exposure that was once the preserve of institutions alone.

What has changed is not only the menu but the appetite. The next generation of family offices is re-weighting toward alternatives as a matter of conviction, starting from a higher baseline allocation to private markets than the generation that built the wealth. Allocation surveys of younger high-net-worth owners consistently show larger target weights to private equity, private credit, real assets and digital assets, and a corresponding willingness to hold positions that an older, listed-heavy portfolio would never have carried. This is how family offices re-weight toward alternatives in practice: not a tactical tilt but a structural reset of what a core portfolio looks like, with private equity and private credit treated as core holdings rather than satellite positions. That behavioural shift connects directly to the next generation of allocators re-mandating capital across the wider market, the demand engine beneath the entire frontier.

The timing is not incidental. Two structural forces are widening the universe at once, and both are sourced rather than asserted. The first is generational. Bank of America research finds that 72% of younger investors, those under 44, no longer believe it is possible to achieve above-average returns using only traditional stocks and bonds, against just 28% of investors over 44 who feel the same way. That 72%-versus-28% split is a sentiment divide between cohorts, not a demographic headcount, and it points capital toward alternatives as the receiving generation gains control of it.

Behind that sentiment sits the largest reason it matters: a vast handover of capital is under way. Cerulli Associates projects roughly 84 trillion to 124 trillion US dollars transferring between generations in the United States through the late 2040s. That figure is a projection, stated here as a range across vintages rather than a settled number, and a US estimate rather than a global one. As those balance sheets pass to younger owners, the asset mix they fund changes with them, and the frontier classes are where the new preference is most visible. The direction is clear even if the magnitude is contested, which is the right way to hold any number a portfolio is built on.

The second force is infrastructure. The same shift that opens the frontier raises a practical question of how unlisted, hard-to-verify assets are priced, authenticated and accessed at scale, which is where the tokenisation of real-world assets and the broader technology layer enter the story. That bridge is a topic in its own right, addressed elsewhere in the firm's work; here it is enough to note that the widening of the investable universe and the maturing of the technology to support it are happening together, not by coincidence.

The category is settled in its definition and widening at its edge. The established classes (private equity, private credit, real assets, hedge funds, commodities) remain the backbone, but the investable universe now extends into private credit at scale, litigation finance and royalties, IP, and sports franchises held as institutional assets. The allocator's job is not to memorise the taxonomy. It is to map the frontier, size each new exposure soberly as a range, and judge where uncorrelated return is actually on offer.

That is the work IMS Group does across its divisions. To see how the firm invests across the frontier, explore how IMS Capital Management deploys private credit and alternatives, and how IMS Sports Capital operates in the capital structures behind sport: the frontier read by an allocator, not a list.

This content is provided by IMS Group for information purposes only and does not constitute investment advice, an offer, or a solicitation. Alternative investments carry risks including illiquidity and loss of capital. Figures are sourced and dated; projections are estimates stated as ranges.

This article is provided by IMS Group for information purposes only. It does not constitute investment advice, an offer, or a solicitation. Figures are point-in-time and projections are estimates.