Investment Trusts Explained: The Closed-End Advantage UK Investors Keep Overlooking

An investment trust is a public limited company listed on the London Stock Exchange. You buy shares in the company; the company invests the pooled capital in equities, bonds, property, infrastructure, or private equity according to its stated objective. A board of directors — independent of the fund manager — oversees governance, fees, and strategy.

The critical difference from open-ended funds (OEICs and unit trusts) is the closed-ended structure. An investment trust issues a fixed number of shares. When you want to buy, you purchase existing shares on the stock exchange from another investor. When you sell, you sell to another investor. The trust itself doesn't create or cancel shares based on demand.

This has a profound practical consequence. When markets crash and investors panic, open-ended fund managers face waves of redemptions — they must sell holdings at fire-sale prices to return cash. Investment trust managers face no such pressure. The share price falls, but the portfolio remains intact. The manager can sit tight, or even buy bargains while open-ended competitors are forced sellers. During the March 2026 Iran-related sell-off, open-ended fund outflows hit multi-year highs while investment trust managers could hold their nerve — see our analysis of why panic-selling costs more than the crisis itself.

The Association of Investment Companies (AIC) tracks over 350 investment companies across 27 sectors, from UK Equity Income to Renewable Energy Infrastructure. The structure isn't niche — it's the original way British investors accessed professional fund management, and it remains one of the most shareholder-friendly.

Because investment trust shares trade on the stock exchange, their price is set by supply and demand — not by the value of the underlying assets. The net asset value (NAV) represents the total value of the trust's investments minus liabilities, divided by shares outstanding. When the share price sits below NAV, the trust trades at a discount. Above NAV, it trades at a premium.

A 12.5% discount — the current sector average — means you're acquiring £1 of underlying assets for roughly 87p. If the discount then narrows to 5%, you've made 7.5 percentage points of return before the underlying portfolio moves at all. This double return — asset growth plus discount narrowing — is unique to closed-ended funds.

The reverse also applies. A trust that falls 10% in NAV while its discount widens from 12% to 25% will see its share price collapse by roughly 23%. Discounts amplify both gains and losses.

The numbers tell a stark story. The sector average discount has widened from roughly -2% at the end of 2021 to -12.5% as of March 2026 — the longest sustained period of double-digit discounts on record. Higher interest rates are the primary driver: with UK long-term gilt yields at 4.43% (latest available February 2026 data) and savings accounts offering competitive returns, investors have less incentive to accept the additional complexity of investment trusts. Add the Iran conflict's impact on risk appetite, and discounts have widened further still.

Some individual trusts sit at extreme levels. Life sciences investor Syncona has swung from a persistent NAV premium to a 53% discount. Trusts exposed to private assets — private equity, venture capital, infrastructure — trade at the deepest discounts because investors can't independently verify the underlying valuations. That's a rational fear, but it also means these trusts offer the widest margin of safety if the NAVs prove accurate.

Three practical rules for discount investing: check the trust's historical average discount (available free on the AIC compare tool), avoid trusts at unusually narrow discounts unless you have strong conviction on the sector, and remember that discounts can persist for years — buying at a discount doesn't guarantee it will narrow on your timeline.

Wide discounts don't just attract bargain hunters. They attract activists.

Saba Capital, the New York hedge fund led by Boaz Weinstein, disclosed stakes of 19–29% in seven UK investment trusts in December 2024 and launched campaigns to replace their boards. The strategy is straightforward: buy shares at a deep discount to NAV, force the trust to wind up or convert to an open-ended structure, and pocket the difference when shares re-price to full asset value.

In March 2026, Saba escalated significantly — launching the Saba Capital Investment Trusts UCITS ETF (ticker: UKIT) on the London Stock Exchange, in partnership with HANetf. This active ETF invests in a portfolio of 40–60 UK investment trusts trading at attractive discounts, managed by Weinstein himself and partner Paul Kazarian. The expense ratio is 1.50%. UKIT now gives any retail investor access to the same activist discount-capture strategy that was previously only available to Saba's hedge fund clients.

This matters for every investment trust investor, whether you buy UKIT or not. If Saba and similar activists succeed in forcing conversions, trust shareholders see their discounts narrow — delivering a one-off capital gain. But they also lose the structural advantages (gearing, revenue reserves, no forced selling) that made investment trusts attractive in the first place. Several trusts — Edinburgh Worldwide, Impax Environmental Markets, and Herald Investment Trust — have begun preparing exit mechanisms for shareholders who'd rather leave than own a Saba-controlled vehicle.

The lesson: discounts are not just a pricing anomaly. They're a governance vulnerability. Before buying any investment trust trading at a deep discount, check whether activist investors hold significant stakes. The trust's annual report and RNS announcements on the London Stock Exchange will show major shareholders. A trust where 25% of shares are held by an activist hedge fund is a fundamentally different investment from one with a stable, long-term shareholder base — and the UKIT ETF ensures the activist pressure on the sector will only intensify.

Investment trusts can borrow money to invest — a technique called gearing. If a trust has £100m of shareholders' funds and borrows £15m, the total portfolio is £115m with 15% gearing. Shareholders own £100m of equity exposed to £115m of assets.

The maths is straightforward. If the £115m portfolio rises 10% to £126.5m, shareholders gain £11.5m on their £100m — an 11.5% return before borrowing costs, versus 10% ungeared. In a rising market, gearing is free money.

In a falling market, it's the opposite. A 10% portfolio decline to £103.5m leaves shareholders with just £88.5m after repaying £15m of debt — an 11.5% loss on their equity. Add borrowing costs and the loss widens further.

Most UK investment trusts use modest gearing of 5–15%. The cost of that borrowing matters enormously. Many trusts locked in long-term fixed-rate debt during the era of near-zero rates (2009–2021). A trust paying 2% on debt locked in during 2019, investing in equities returning 8%, earns a 6 percentage point spread on every borrowed pound. A trust needing to refinance now faces the Bank of England base rate at 3.75%, making new borrowing more expensive than it's been in 15 years.

This creates a clear divide in the sector. Trusts with cheap legacy debt have a structural advantage that will persist for years. Scottish Mortgage, for instance, locked in long-term debentures at rates below 3% — an edge its competitors simply cannot replicate at today's rates. When evaluating an investment trust, always check the average cost of debt — it's in the annual report and on the AIC factsheet. A trust geared at 10% with debt costing 2% is a fundamentally different proposition from one geared at 10% with debt costing 5%.

Investment trusts can retain up to 15% of income each year in a revenue reserve. In good years, they hold back surplus income. In lean years, they draw on reserves to maintain or increase the dividend. Open-ended funds must distribute all income received — they have no mechanism to smooth payouts.

The AIC's Dividend Heroes list — trusts that have raised their dividend for 20+ consecutive years — demonstrates what this structure achieves (data as at 18 March 2026):

• City of London Investment Trust — 59 consecutive years (UK Equity Income)
• Bankers Investment Trust — 59 years (Global)
• Alliance Witan — 59 years (Global)
• Caledonia Investments — 58 years (Flexible Investment)
• The Global Smaller Companies Trust — 55 years (Global Smaller Companies)
• F&C Investment Trust — 55 years (the oldest trust, founded 1868)
• Brunner Investment Trust — 54 years (Global)
• JPMorgan Claverhouse — 53 years (UK Equity Income)
• Murray Income Trust — 52 years (UK Equity Income)
• Scottish American — 52 years (Global Equity Income)
• Merchants Trust — 43 years (UK Equity Income)
• Scottish Mortgage — 43 years (Global)

These records encompass every recession, crisis, and market panic since the 1960s. During the 2020 pandemic, when FTSE 100 companies slashed £35bn in dividends, the Dividend Heroes drew on reserves and kept increasing. That consistency has a compounding effect: a trust yielding 4% today that raises its dividend by 5% annually delivers a 6.5% yield on cost within a decade.

The next generation list includes another 30 trusts with 10–19 consecutive years of increases — Schroder Oriental Income and BlackRock Greater Europe both at 19 years, International Public Partnerships at 17. The pipeline runs deep.

For income investors, this is the strongest argument for investment trusts over open-ended income funds. An OEIC yielding 5% today might cut its payout by 30% in the next recession. A Dividend Hero has decades of evidence suggesting otherwise. See our dividend investing strategy guide for how to build a complete income portfolio.

Investment trusts are bought and sold on the London Stock Exchange through any stockbroker or investment platform. Most major UK platforms — including Hargreaves Lansdown, AJ Bell, interactive investor, and InvestEngine — support investment trusts within a Stocks and Shares ISA, a SIPP, or a general investment account.

Holding investment trusts inside a Stocks and Shares ISA shelters all dividends and capital gains from tax. The annual ISA allowance remains £20,000 for 2025/26. From April 2027, the government will cap cash ISA contributions at £12,000 within the overall £20,000 limit — pushing more savers towards Stocks and Shares ISAs and, potentially, investment trusts. If you've been considering opening a Stocks and Shares ISA, the incoming cash cap is your nudge. For more on the ISA debate, see our analysis of why equities beat cash ISAs over time — or the case for cash if you can't stomach volatility.

Within a SIPP, contributions receive tax relief at your marginal rate — a basic rate taxpayer investing £800 receives £200 in relief, a higher rate taxpayer can claim further relief through self-assessment. See our SIPP vs LISA comparison for more on choosing the right wrapper.

Platform fees matter more than most investors realise. Percentage-based platforms (typically 0.25–0.45% of holdings) become expensive as your portfolio grows. For a £100,000 portfolio, that's £250–£450 per year. Flat-fee platforms like interactive investor charge a fixed monthly amount regardless of portfolio size — far cheaper for larger holdings. For the active vs passive debate applied to platforms, the same logic applies: minimise the fees you can control.

Investment trusts report costs differently from open-ended funds. Instead of an ongoing charges figure (OCF), they publish a Key Information Document showing ongoing costs, transaction costs, and borrowing costs. Many actively managed investment trusts run ongoing charges below 0.50%, competitive with passive index trackers despite offering active management. The FCA's cost disclosure rules now require clearer reporting — always compare like with like.

Investment trusts suit investors who are comfortable with stock market volatility and who understand that discounts can widen before they narrow. The structural advantages — no forced selling, gearing, dividend smoothing — reward patience.

Open-ended funds suit investors who want simplicity. NAV pricing means no discounts to worry about. Regular monthly contributions via direct debit are straightforward. For a first-time investor building a core portfolio of global index trackers, open-ended funds or ETFs are the right starting point — see our guide to index funds and ETFs.

The experienced investor's approach: build a core of low-cost index funds or ETFs for broad market exposure, then add selected investment trusts for specialist sectors — global equity income, UK smaller companies, private equity, infrastructure, or renewable energy. The trust structure adds most value in illiquid asset classes (private equity, infrastructure) where the closed-ended structure means the manager never faces forced sales of hard-to-sell assets. If concentration risk in passive index funds concerns you, see our analysis of why smart active management still earns its fee.

For the active vs passive debate in more depth, see our analysis of why 76% of active managers underperform.

This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions.