"What ties them together is not a shared strategy, it is what they are not."
Alternative investments cover everything outside the mainstream trio of listed shares, government or corporate bonds, and cash savings. That is a broad category: private equity stakes in unlisted companies, private real estate funds, private credit and direct lending, hedge funds, fine art and collectibles, green energy infrastructure, physical gold and precious metals, and digital infrastructure such as data centres and fibre networks all fall under the same umbrella. They do not trade on a public exchange, they are rarely priced daily, and most cannot be bought through an ordinary stocks and shares ISA.
Why investors consider alternatives
The usual reasons are diversification and return potential. Because private markets do not move in lockstep with listed shares, adding an allocation to private equity or real estate can, in theory, smooth out a portfolio that would otherwise rise and fall entirely with the FTSE or S&P. Illiquid assets can also carry an "illiquidity premium": because investors lock money away for years rather than sell at will, the asset sometimes offers higher potential returns to compensate. Potential is the key word; there is no guarantee an alternative asset outperforms a simple index tracker, and many do not.
The trade-offs: illiquidity, risk and regulation
The features that make alternatives interesting are the same ones that make them risky. Money committed to a private equity fund or a direct property scheme is often locked in for five to ten years, with no ability to sell out early if circumstances change. Minimum investments are typically far higher than a standard fund, often tens of thousands of pounds rather than the price of a single share. Many alternative structures sit outside the regulatory regime that applies to mainstream retail funds, and critically, most alternative investments are not covered by the Financial Services Compensation Scheme (FSCS), so there is no compensation if a provider fails. For a fuller breakdown of what can go wrong, see Are Alternative Investments Safe?
Who alternative investments are typically aimed at
Because of that risk and illiquidity, UK financial promotion rules restrict who alternative investment opportunities can be marketed to. In practice, most providers only communicate these opportunities to people who self-certify into a recognised category: a High Net Worth Investor, a Self-Certified Sophisticated Investor, or a Professional Investor under FCA rules. The detailed criteria are set out in What Is a High Net Worth Investor? and What Is a Self-Certified Sophisticated Investor?. These categories exist because alternative investments carry a level of risk and complexity that is not appropriate for everyone.
Private equity
Private equity means buying a stake in a company not listed on a public stock exchange, whether a fast-growing business needing expansion capital or an established firm going through a buyout. Because there is no public market to trade shares in, investors typically commit capital for the life of the fund and exit only when the underlying companies are sold or listed. It is often compared against direct property as a growth-oriented alternative; Private Equity vs Real Estate looks at how the two stack up.
Private real estate
Real estate investment outside the listed REIT market covers direct property funds, development finance and co-investment in commercial or residential schemes. It offers exposure to a physical, tangible asset and, depending on structure, potential income from rent alongside capital growth. The catch is liquidity: property takes time to sell, and funds holding illiquid buildings have occasionally suspended withdrawals when too many investors wanted their money out at once.
Private credit and debt
Private credit involves lending directly to businesses or property developers, outside the banking system, in exchange for interest payments. Returns come from interest rather than capital growth, but the risk is that the borrower does not repay, and unlike a bank deposit, there is no FSCS protection if the loan or platform fails.
Fine art and collectibles
Fine art, classic cars, whisky casks and other collectibles are a smaller but longstanding corner of alternative investment. Value depends on provenance, condition and market taste, which makes these assets specialist and hard to value objectively compared with a share price checked in real time.
Other categories worth knowing
Hedge funds pursue varied strategies aiming for returns less correlated to broad markets. Green energy projects, such as solar and wind infrastructure, offer exposure to the energy transition alongside long investment horizons. Gold and other precious metals remain a traditional hedge against inflation and currency weakness. Digital infrastructure, meaning data centres, fibre networks and mobile towers, has emerged as its own category as demand for connectivity and cloud computing has grown.
Comparing your options
Every category above carries its own risk profile, minimum investment level and time horizon, so treating "alternative investments" as one homogenous asset class is a mistake. If you are weighing up providers, How to Compare Alternative Investment Providers in the UK sets out the questions worth asking before committing capital. You can also use our comparison tool to see how different introducers line up side by side, and our return calculator to model different growth assumptions and time horizons.
This article is general information only, not financial advice, and since alternative investments carry risks including illiquidity, loss of capital and no FSCS protection, you should seek independent advice from an FCA-authorised financial adviser if you are unsure whether any of this is right for your circumstances.