Investment trusts are closed-ended UK-listed companies that hold portfolios of investments. ETFs are open-ended funds where new shares are created/redeemed as money flows in/out. Three structural differences matter: (1) trusts can trade at discount or premium to NAV (the underlying asset value) — ETFs trade close to NAV; (2) trusts can use gearing (borrowing) to amplify returns — ETFs generally cannot (ex-leveraged ETFs); (3) trusts have dividend reserves — they can pay smooth dividends even in bad years — ETFs distribute what they receive. For UK retail, ITs are particularly interesting for niche/illiquid assets, dividend smoothing, and discount-buying opportunities.
The structural difference — closed vs open-ended
| Investment trust (IT) | ETF / OEIC | |
|---|---|---|
| Structure | Listed company on LSE | Open-ended fund |
| Shares in issue | Fixed (changes via buybacks/issuance, rarely) | Variable (created/redeemed daily) |
| Trading mechanism | Secondary market only | Primary creation/redemption mechanism keeps price near NAV |
| Premium / discount | Common — can be ±20% of NAV | Usually within 0.1-0.5% of NAV |
| Gearing (borrowing) | Common (up to ~25% of NAV) | Generally not allowed for UCITS funds |
| Dividend reserves | Can hold and smooth distributions | Distributes what's received |
| Active management | Most ITs are actively managed | Most ETFs are passive trackers (some active exist) |
| OCF | Typically 0.5-1.5% | Typically 0.07-0.50% |
The closed-ended advantage
Open-ended funds (ETFs and OEICs) have a built-in problem: if investors redeem en masse, the fund manager must sell underlying assets. In illiquid markets (commercial property, infrastructure, private equity), this can force panic selling at terrible prices.
Investment trusts don't have this problem. If you want to sell, you sell your trust shares to another investor on the LSE. The manager keeps the underlying assets undisturbed. This makes ITs uniquely suited to:
- Commercial property: property funds in the open-ended world have famously been "gated" (suspended redemptions) repeatedly. Property ITs don't have this issue.
- Infrastructure: wind farms, schools, hospitals. Long-duration, illiquid assets.
- Private equity: ITs can hold unlisted private companies; open-ended funds usually can't.
- Frontier markets: small-cap emerging market exposure.
Gearing — the trust's superpower (and risk)
Investment trusts can borrow money to amplify returns. A trust with £100m of assets might borrow £20m, giving £120m of effective investment exposure. If the underlying assets gain 10%, the trust's net asset value grows from £100m to £112m (the £20m loan still owed) — a 12% gain on shareholders' equity.
The flip side: if assets fall 10%, NAV drops from £100m to £88m — a 12% loss. Gearing amplifies both directions.
Typical gearing levels:
- Equity income trusts: 5-10% gearing.
- Global equity trusts: 5-15%.
- UK smaller companies: 0-15%.
- Property trusts: 15-35%.
- Private equity trusts: can be 25%+.
Dividend reserves — the smoothing advantage
Investment trusts can retain up to 15% of their income each year, building reserves. In good years they save; in bad years they draw down reserves to maintain dividends.
The result: many trusts have 20, 30, even 50+ year unbroken dividend records. The famous "Dividend Heroes" — see the dividend heroes page.
ETFs and OEICs can't do this. They distribute what they receive. If underlying companies cut dividends 30% (e.g. 2020), the ETF distribution falls 30%. The trust can use reserves to maintain its distribution.
Worked example — Scottish Mortgage vs equivalent ETF
Scottish Mortgage Investment Trust (SMT) vs global growth ETF
SMT is the UK's largest investment trust by AUM (~£12bn). Holds global high-growth stocks.
| SMT 2024 share price return: −20% | −20% |
| SMT NAV total return same period | −12% |
| Implied discount widening: 8 percentage points | |
| Comparison: equivalent global growth ETF (e.g. iShares MSCI World Growth) | −14% |
In this period, the SMT shareholder experienced worse returns than the ETF holder NOT because the underlying portfolio performed worse — but because the discount widened. The NAV return (−12%) was actually better than the ETF (−14%); the share price return (−20%) was worse.
The implication: in a 5-year holding period, ITs can show different total returns from their underlying portfolios depending on discount/premium movements.
When investment trusts beat ETFs
- Income smoothing matters: retirees relying on dividend income often prefer trust dividend reliability.
- Illiquid asset exposure: commercial property, infrastructure, private equity work better in closed-ended structure.
- Discount opportunities: buying trust shares at 10% discount to NAV is an effective discount on the underlying assets.
- Active management value: for areas where active management adds value (UK smaller companies, frontier markets), trusts have a track record.
- UK domestic focus: ITs are UK-listed, sterling-denominated, FCA-regulated. No foreign-domicile / withholding tax complications.
When ETFs beat investment trusts
- Pure index tracking: ITs are mostly active; ETFs track broad indices at very low cost.
- Cost-sensitive portfolios: ETFs typically 0.07-0.20% OCF vs ITs at 0.5-1.5%.
- Volume / liquidity for big trades: major ETFs trade billions daily; even big ITs have lower volumes.
- Predictable NAV exposure: ETFs trade close to NAV; ITs can have 10%+ discount/premium swings.
- Simplicity: ETFs don't require monitoring discount/premium history.
Tax treatment of investment trusts
For UK retail in 2026/27:
- Dividend tax: trust distributions are dividend income. Above the £500 Dividend Allowance (2026/27), taxed at 8.75%/33.75%/39.35%.
- Capital Gains Tax: trust share disposals subject to CGT above £3,000 allowance, at 18%/24%.
- Inside ISA/SIPP: tax-free for both dividends and gains.
- Stamp duty reserve tax: trust shares are exempt from SDRT (a small advantage vs UK individual stocks which pay 0.5%).
Sources and methodology
Investment trust structure follows UK Companies Act and AIC guidelines (theaic.co.uk — Association of Investment Companies). Discount/premium mechanics standard practice. The methodology page documents sources.
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