UK fund management: three quant firms out-earn the rest of the top table combined

About 730 UK fund-management companies publish a full profit-and-loss, booking £25.7bn of combined turnover. The headline is where the profit pool has moved: three quantitative firms — Qube Research & Technologies, Marshall Wace and Quadrature Capital — earned roughly £2.4bn of pre-tax profit between them with fewer than 1,500 staff, more than two and a half times what the other nine companies in the top twelve made combined. The traditional giants are still enormous by revenue; the quants are where the money lands. Figures are approximate — verify against a company’s own accounts before relying on any single number.

Turnover is not one thing here

Before reading a single margin, know that “revenue” in this industry means at least three different things, and comparing across them is meaningless:

• Fees on other people’s money — management and performance fees on external capital. This is the classic model, and it’s where a 30% margin genuinely means a well-run business.
• Fees charged to in-house funds — Quadrature’s funds trade the firm’s own capital, so its £1.22bn of management and performance fees is billed to funds the group itself owns — internal economics, not third-party client fees. Its 45% margin isn’t comparable to a manager competing for external mandates.
• Intercompany service fees — the London arms of global houses bill their parent whatever transfer pricing says they should. Morgan Stanley Investment Management shows £850M of turnover against a headcount of four; the revenue is real, but the margin is an accounting choice, not a competitive outcome.

There is also a structural blind spot: much of UK asset management runs through limited-liability partnerships, where the bottom line is the partners’ pay pool rather than a company profit. Some famous names appear here only as a service entity — or not at all — and within hedge-fund groups, fees can sit in whichever entity the structure prefers. TCI Fund Management breaks the pattern a different way: £776M of fees, seven employees, and just £10M of pre-tax profit — not because the money leaks into the group, but because the company donated roughly £600M of it to charity, most of it to founder Chris Hohn’s Children’s Investment Fund Foundation.

The giants

*Marshall Wace’s profit is a consolidated partnership-group figure — around £605M of it is the pool allocated to the partnership’s members, effectively the pay that Qube and Quadrature book as staff cost. TCI’s +21% is measured against a prior period that ran thirteen months after an accounting-date change, so treat the growth rate as indicative.

…and two more round out the top twelve: ICG Alternative Investment (£446M turnover, £224.5M profit — private-markets fees at a 50% margin) and Ardian Investment UK (£428M, £150.5M).

The pattern is stark. The three quant firms grew revenue by 84–122% in a year — Qube and Quadrature more than doubled, Marshall Wace not far behind — the signature of performance fees compounding on a strong run, and Qube added staff at +57% while doing it. The traditional giants’ London arms mostly sit flat or shrinking: PIMCO −6%, Baillie Gifford Overseas −1%, Citadel Europe −5%. And profit-per-head at the top is unlike anything else in the economy: Quadrature’s 173 people generated about £3.2M of pre-tax profit each; Marshall Wace’s 422 about £2.2M each.

The shape of the market

Profitability climbs almost perfectly with scale — from 38% in the sub-£1M tier to 92% at £100M–1bn and 100% among the four billion-pound firms. Fee-on-assets economics have a floor: below a certain fee base you cannot cover a compliance function and an office, and the sub-£1M band is full of pre-launch vehicles, wind-downs and one-fund shops that never reached it. Once a manager clears roughly £5M of fee income, losing money becomes hard.

The boutique margin machine

The mid-market (£5–100M of fee income) is where the industry’s most elegant businesses live: boutique managers running concentrated funds with a few dozen people. Lindsell Train still converts £50.9M of fees into £30.8M of profit with 32 staff — a 60% margin — even in a year when underperformance and outflows cut its fee book by a quarter (turnover fell 26%, profit 37%). The margin resilience, not the fee book, is the sticky part. Troy Asset Management runs at 37.5% with 49 people, on fee income that also shrank 13% year on year; Attestor at 41% with 40. Two names need reading differently before this table: one apparent 100%-margin entry is a holding vehicle booking group income, not a manager, and one 78%-margin property-fund arm bills its own group — both are excluded from the competitive read below.

…and nine more clear the same bar (£5–100M, profitable, ≥10% margin) — though most of those are group or pension-fund arms (BNP Paribas AM UK, Ontario Teachers’ Europe, AustralianSuper UK) rather than independents.

Even here, read the ownership line before the margin line. Hargreaves Lansdown Fund Managers’ 62% margin is real, but it’s the fund-manufacturing arm of a distribution platform — the margin tells you where platform economics sit, not that a standalone boutique could match it. The purest signals are the independents: Lindsell Train, Troy and Guinness, where the fee book, the staff and the profit all live in the same company.

Growth, read with care

The fastest “growth” in fund management is rarely organic client wins. Of the top growers, Carmignac UK (+275%) is a European house onshoring its UK fee book into a young local company — a Brexit artifact, not a sales story (its headcount actually fell). Brummer & Partners’ UK arm (+446%, staff +275%) is a Swedish group building out a London operation from scratch, still marginally loss-making. The genuine article is Mulvaney Capital Management — +243% to £47.3M at a 40% margin with staff up 75% — the classic shape of a trend-following manager monetising a big performance year. Three entries were removed from this read entirely: a holding vehicle booking group income as turnover, a residential-property business that sits in this dataset by mislabelling, and a grant-making fund that isn’t a commercial manager.

Market structure

The top 5 hold 27% of the market’s turnover and the top 100 hold 86% — moderately top-heavy on paper. But the top of this curve is not a competitive set: it mixes quant firms trading their own book, hedge funds monetising a performance year, and captive arms whose revenue is set by a parent. The actual competitive fee-on-assets market — the boutiques and independent houses fighting for mandates — is far more fragmented than the curve suggests, and that fragmentation is why boutique margins survive: reputation and track record don’t consolidate the way balance sheets do.

Ownership and vintage

This is a young industry on the register: the 2010–15 and 2016–20 cohorts are the two largest (184 and 176 companies), and another 102 arrived from 2021 on. That reflects two waves — the post-financial-crisis boutique launches as teams spun out of banks and large houses, and the post-Brexit wave of European managers incorporating UK entities to hold their local fee books. Ownership splits almost evenly: 357 corporate-owned against 321 individual-owned, the corporate half dominated by those group arms. Only ~7% carry a Bidco/Topco-style name — private equity buys fund managers far less often than it buys the industries they invest in, because the assets walk out of the door each evening.

What the map shows

1. The quants took the profit pool. Qube, Marshall Wace and Quadrature booked ~£2.4bn of pre-tax profit with under 1,500 staff — more than 2.5× the rest of the top twelve combined — and grew revenue by 84–122% in a year.
2. Profit-per-head here has no peer. Quadrature generated about £3.2M of pre-tax profit per employee; even mid-tier boutiques clear £500k–£1M per head.
3. Margins aren’t comparable across the top table. Fees billed to in-house funds, performance fees on external money and parent-set intercompany charges all appear as “turnover”; a margin only means something once you know which one you’re looking at.
4. Boutique margins survive even when the fee book shrinks. Lindsell Train (60% margin, 32 staff) and Troy (37.5%) both lost fee income this year — a quarter and an eighth of it respectively — yet still converted what remained into profit at rates most industries never see. The resilient part of the model is the cost base, not the fee book.
5. Scale is a profitability switch. Profitability climbs from 38% below £1M of revenue to 92% above £100M — below fee-scale you burn, above it you almost can’t lose.
6. It’s a young register. Half the companies were incorporated after 2010 — post-crisis spin-outs and post-Brexit onshoring — and vintage is no moat; track record is.

Methodology and caveats

This covers only the UK fund-management companies that publish a full profit-and-loss — roughly 730 of 1,100 active companies; the rest file abridged or dormant accounts. A material slice of the industry sits in limited-liability partnerships or offshore managers and is invisible or understated here, so some famous names are absent. Holding vehicles, mislabelled businesses and intra-group fee entities are excluded from the competitive reads where identified, and revenue models (fees, own-capital trading, intercompany charges) are never compared directly. Some entities (for example TCI Fund Management and Morgan Stanley Investment Management) file their accounts in US dollars; their figures are converted to sterling at the average rate for their financial year. Figures are approximate and business-type labels are directional; this is analysis, not financial advice — verify any specific figure against the company’s own accounts.