Investment trusts are closed-ended funds — unlike an open-ended fund or ETF, they have a fixed number of shares, so their market price can drift away from net asset value (NAV), the estimated worth of what the trust owns after debts. When the price sits below NAV, the trust trades at a discount; above it, a premium. For years, discounts across the sector have been unusually wide, and corporate activity — funds merging, winding up, or facing shareholder pressure to close the gap — has kept the topic in the news. That backdrop makes it tempting to treat any discount as an obvious opportunity. It usually isn’t quite that simple.
The mechanical case: a discount really can raise your income
Here the maths is not in dispute. If a trust pays a fixed dividend per share, buying below NAV increases the yield you receive on your money, because yield is just income divided by price. A trust with a NAV of £1.60 and an 8p dividend yields 5% at NAV. Buy the same shares at a 25% discount — £1.20 — and the identical 8p payout becomes a 6.7% yield. Nothing about the underlying business has changed; you’re simply paying less for the same income stream, and your lump sum now buys more shares.
| Scenario | Share price | Shares bought with £10,000 | Dividend per share | Annual income | Yield on cost |
|---|---|---|---|---|---|
| At NAV | £1.60 | 6,250 | 8p | £500 | 5.0% |
| 25% discount | £1.20 | 8,333 | 8p | £667 | 6.7% |
This is the seductive part of the story, and it’s real: as one commentator illustrates using a hypothetical trust modelled on Canadian General Investments, buying £100,000 of assets at a 40% discount for £60,000-equivalent effectively means you’re deploying that £60,000 across £100,000-worth of underlying holdings — so a steady 3% payout on NAV becomes a much richer yield on your actual outlay, and if the trust holds that payout rate as NAV compounds over years, your yield on the original purchase price can climb dramatically over a couple of decades. Crucially, this benefit doesn’t depend on the discount ever narrowing. If the payout holds, the higher starting yield is locked in for as long as you hold the shares, discount or no discount.
Why the market applies a discount at all
This is where the "free lunch" framing breaks down, and it’s the question too many investors skip. A discount is not a random pricing error waiting to be corrected — it’s the market’s judgment about a trust, expressed in price. Research director Nick Britton of the Association of Investment Companies puts it plainly: discounts are "double-edged — they can be an opportunity, or a frustration". They can widen because a trust is small and has fallen out of favour with wealth managers who increasingly prefer larger, more liquid vehicles; because the underlying assets — private companies, infrastructure, property — are inherently hard to value, so NAV itself carries uncertainty; or because there’s simply no near-term catalyst, such as a buyback, tender offer, or activist campaign, to force the price back toward NAV. None of these reasons are exotic. They’re structural, and they can persist for a long time — sometimes indefinitely.
Britton’s own example makes the point about timing sharply: if NAV grows at 7% a year and the discount is the same 20% at purchase and at sale a decade later, the discount contributes nothing to your total return — it’s neutral. It only helps if it narrows after you buy, and it only hurts if it widens. That’s a very different claim from saying discounts are undervaluations waiting to be realised.
A decision framework, not a shortcut
The temptation, in behavioural terms, is to anchor on the headline discount — "get more for your money" — while treating the reason for that discount as background noise. A more disciplined approach treats the discount as the start of a question, not the end of one.
flowchart TD A[Discount observed] --> B[Why is it priced below NAV?] B --> C[Structural: illiquidity, size, valuation uncertainty] B --> D[Temporary: sentiment, sector rotation] C --> E[Judge if income still durable] D --> E E --> F[Does yield compensate for the risk?]
Answering that final question requires looking past the discount to the durability of the distribution itself. This is arguably the more important number for a long-term income investor: what matters over a twenty-year holding period is less whether the discount is 15% or 25% today, and more whether the trust can keep paying — and ideally growing — its distribution through different market conditions. A trust’s reserve mechanism, which lets it hold back up to 15% of income annually to smooth payouts in lean years, is one structural feature that supports durability, but it’s not a guarantee against a dividend cut.
What the discount doesn’t tell you
None of this means discounted trusts are traps, or that wide discounts should be avoided. Infrastructure trusts traded at 25–30% discounts in early 2025, offering income seekers yields north of 8%, and those gaps have since narrowed considerably for some names, though not for others still sitting on double-digit discounts. That narrowing happened for some trusts and not others — which is precisely the point. A discount closing is not something you can bank on; it’s a possible outcome, not a forecast.
What the discount does reliably tell you is your starting cash yield relative to price, assuming the payout holds. What it does not tell you is whether the assets underneath are correctly valued, whether the trust has a path to re-rating, or whether the income you’re locking in today will still be there in five or ten years. Treating a wide discount as inherently cheap conflates a pricing mechanic with an investment judgment — and those are not the same thing.
The bottom line
A discount is real and it is measurable: it can lift your starting income yield without requiring anything else to happen. But the size of that discount tells you nothing on its own about whether the trust deserves your money — that depends on why the market has priced it that way, whether the income behind it is durable, and whether you’re being compensated for genuine structural risk or simply buying into a problem at a lower price. The honest version of "buy £1 for 90p" is: first find out why the seller is letting it go so cheap.
