Business

Know the Business

MAB is a capital-light platform that earns a tax on every UK mortgage and protection policy its 2,100 advisers write — a network business dressed as a financial-services name. The economics are good in good times and surprisingly resilient in bad ones because market-share gains have offset cyclical volume declines, but the headline reported profit line is misleading: a data-feed quirk inflates "operating income" in the latest two years, and the real story is an adjusted PBT margin that has slipped from 12.0% to 11.4% even as revenue jumped 20%. The market is right that this is a quality compounder; it is mispricing the gap between the 2029 target margin (>15%) and the integration drag from the Fluent Money acquisition that sits in the way.

1. How This Business Actually Works

MAB rents out the regulated, technology-enabled wrapper around a mortgage adviser; advisers do the work, lenders and insurers pay the fees, MAB takes a slice off the top.

The revenue engine is one customer interaction monetised three times. An adviser sits with a homebuyer or remortgagor; MAB collects a procuration fee from the lender at completion (the largest stream, ~£106m in FY2024 per third-party disclosure), an insurance commission from the protection provider on any term-assurance, critical-illness or income-protection policy attached, and a small client-paid advice fee. Total revenue scaled to £319m in FY2025, on the back of just over £32bn of mortgages arranged and roughly 93,000 protection policies sold the prior year. The cash mechanics are unusually attractive: fees and commissions land centrally before being split with the adviser firm, which is why operating cash flow (£34m FY2025) tracks reported PBT (£22m) at over 150% — the working-capital cycle runs in MAB's favour.

There are two distinct chassis sitting under that revenue line and the difference matters more than any other operating distinction. The AR Network — about 200 Appointed Representative firms operating under MAB's FCA authorisation on five-to-ten-year contracts — is the asset-light original engine: MAB takes a share of revenue, the AR firm carries most of the variable cost. The Invested Businesses segment, dominated by the £50m+ Fluent Money acquisition in 2022, consolidates revenue and cost in full. That structural shift is the single reason the "gross margin" optical headline has compressed from 27% (FY2019) to 29% (FY2025) while looking flat — IB economics blend a higher revenue share against a higher cost-to-serve, so the platform is actually scaling beneath the consolidated number.

The cost base is mostly people and technology. Administrative expenses ran at 17.6% of revenue in FY2025 (up from 17.1%), with the increase entirely driven by IB integration. The proprietary technology stack — formerly MIDAS, rebranded "Hailo" in 2025 — is the durable asset: 25 years of customer-interaction data, lender API integrations and compliance tooling that an adviser would have to rebuild from scratch to leave. That is the moat. It is not network effects in the social-platform sense; it is the regulatory and operational switching cost of being an FCA-supervised mortgage adviser without MAB's plumbing.

2. The Playing Field

No public peer is a clean comp; together they triangulate where MAB sits, which is at the higher-quality end of UK adviser-platform economics with structurally lower margins than the pure-asset-management peers.

Read the chart by direction. Tatton Asset Management is the closest direct comp on business model — an adviser-support platform that takes a slice of AUM-linked revenue — and it sits where MAB's 2029 margin target wants to land, with 48% margins and 27% growth. The gap is not strategy; it is product mix. Tatton skims a fee on managed assets that earn 2-3% spreads; MAB skims a transactional fee on a £550bn UK mortgage market that compresses every refinancing cycle. Tatton's economics are simply better. TPFG is the platform-economics analogue from the property side — a franchise model that generates 29% PBT margins on £84m of revenue. It validates that "platform-as-tax" economics in UK financial services can sustain ~30% margins; MAB's 11% says either it has not finished consolidating IB earnings or the mortgage take rate is structurally lower. BRK is what bad capital allocation looks like at the same scale — wealth-management consolidator with declining revenue and 16% margin. OSB is in the table for completeness but is a different animal: it is a lender with a £4.4bn balance sheet, and the 58% pre-tax margin is net-interest-income economics, not platform fees. QLT and MNG are size anchors, not comps.

What "good" looks like in this peer set: 25-30% PBT margin, 10-15% organic revenue growth, ROE above 20%, and capex below 1% of revenue. MAB hits the last two and is materially short on the first. The 2029 target — >15% adjusted PBT margin while doubling revenue — would close half that gap.

3. Is This Business Cyclical?

Volumes are highly cyclical; MAB's revenue is much less so because market-share gains have offset every cyclical drawdown of the past decade.

The 2023 cost-of-living shock is the case study. UK gross mortgage lending fell from £315bn (2022) to £225bn (2023) — a 29% drop driven by the Truss mini-budget rate spike and subsequent demand destruction. MAB's revenue rose from £231m to £240m in the same year, because share went from 7.5% to 8.3% as smaller broker firms folded or lost adviser productivity faster than MAB's network. The same pattern shows in COVID (2020): UK lending fell 9%, MAB revenue grew 3%. This is not a coincidence; it is the recruiting flywheel. Downturns drive distressed adviser firms to seek the security of MAB's platform, and lender panel access becomes more valuable when product withdrawals are running at hourly cadence.

The cycle does still hit profit even when revenue holds. Adjusted PBT margin compressed from 14.7% (FY2019) to 6.7% (FY2023) before recovering to 11.4% (FY2025) — the IB cost base is largely fixed and refinancing-heavy revenue mix carries a lower take. The honest read: this is a counter-cyclical share-grabber, pro-cyclical margin business. Recovery years are where the real earnings leverage shows up; the FY2025 50% PBT growth on 19% revenue growth is an early read on FY2026-FY2028 if the Bank of England rate path normalises and refinance volume rebuilds.

4. The Metrics That Actually Matter

Five numbers tell you whether the platform is working. Everything else is either downstream of these or fluff.

Adviser productivity (£157k revenue per mainstream adviser, +13% YoY) is the lead indicator. It captures whether the technology investment is delivering operating leverage — productive advisers write more cases, attach more protection, and refinance their own back-book. A flat or declining productivity number against a rising market would mean the Hailo platform is not earning its keep.

Closing adviser count (2,135, +10% YoY) is the volume lever. After three flat years (2022-2024) of net hiring, 2025 marked the first material return to growth — and 65% of it came from existing AR firms expanding rather than new firms joining, which is the higher-quality cohort. Watch this number quarterly: an inflection here without productivity falling is the cleanest signal of operating leverage.

Market share — new lending (8.4%) and Product Transfers (3.0%) are the only externally validated competitive metrics. PT share grew from 2.7% to 3.0% in 2025; that gap (8.4% lending share against 3.0% PT share) is the structural opportunity. If MAB closes it through its mortgage-monitoring (Dashly) acquisition and dedicated retention advisers, it is several years of organic revenue growth without needing to recruit a single new adviser. The 2029 "double market share" target is essentially an expansion-to-PT bet.

Adjusted cash conversion (121%) measures the working-capital advantage. Above 100% is the platform tell — it means MAB collects revenue centrally before paying out the AR share. Falling below 100% would signal balance-sheet stress at the AR level or a working-capital deterioration in IBs.

Adjusted PBT margin (11.4%) is the bottom-line discipline check. The 2029 target is >15%; the current 60bp YoY compression (12.0% → 11.4%) is the hair on the story. The bridge is roughly: ~150bp of mix drag from IB integration, ~100bp of platform reinvestment that should reverse as Hailo capex normalises, and ~150bp of operating leverage from the next 50bp of share gains. If management hits 15% by 2029, this is materially undervalued. If margin sticks at 11-12%, it is fairly valued.

Conventional metrics like P/E and dividend yield mislead here because the headline net income is depressed by goodwill amortisation on Fluent Money (~£3.1m/yr of intangible amortisation flows through admin expenses) and adjusting items. Adjusted PBT divided by EV is the cleanest valuation anchor.

5. What Is This Business Worth?

This is best valued as one economic engine — a platform that earns a take-rate on a structurally large, low-growth, intermediated market, with margin expansion as the variable that determines whether the multiple rerates.

The right anchor is EV / adjusted PBT. At a £313m market cap, ~£21m of net cash and £6m of debt, EV is roughly £298m against £36m of adjusted PBT — call it 8.3x. That is below TAM (~16x) and TPFG (~14x), in line with BRK's depressed level, and well below where UK platform peers traded pre-2022. The discount is mostly explained by margin: TAM earns nearly five times MAB's PBT margin on the same revenue scale; close that gap by 350bp and the discount narrows mechanically.

The bull case mathematically works as: hit the 2029 target (revenue ~£640m at 15% adjusted PBT margin = ~£96m PBT), apply a 12-13x multiple consistent with TAM's current rating, and you're at roughly £1.1bn equity vs £313m today. The bear case is symmetric: margin sticks at 11%, IB integration drags another year, and the stock trades at ~7x PBT with no rerating. The variance between those two cases is bounded almost entirely by the adjusted PBT margin trajectory — not by interest rates, not by housing transaction volumes, not by FCA reform. That single line carries most of the risk-reward.

A sum-of-the-parts is not the right lens here despite the AR/IB structural distinction, because both engines monetise the same regulatory and technology stack — splitting them would double-count the moat. The exception worth flagging: if Fluent Money is ever spun out or sold, that £69m of goodwill plus £54m of intangibles reveals an acquisition that absorbs roughly 70% of total intangibles against only ~30% of revenue. An impairment test failure there is the only forensic flag in the valuation.

6. What I'd Tell a Young Analyst

Three anchors, in order of importance.

Build the revenue model from market share, not transaction count. UK mortgage volumes are forecast by UK Finance and IMLA; the right model multiplies expected new lending (£560-580bn for 2026) by MAB's share (8.4%, with 50bp/year of upside as the historical run-rate) by a £/£ revenue intensity (~£1 of MAB revenue per £100k arranged). Add the Product Transfer line at the same exercise (3.0% share of £261bn). That triangulates revenue within ±5% versus the consensus number that comes from rolling forward last year's figure. Anyone forecasting from a topline-growth assumption is missing the point — share is the variable that explains 70% of the growth gap to mortgage-market expectations.

The 50bp adjusted PBT margin compression in FY2025 is more important than the 50% PBT growth headline. Management framed FY2025 as a profit recovery year but margin actually went the wrong direction (12.0% → 11.4%) as IB integration cost pulled forward. The 2029 path requires a clear bend in this line by FY2026 — if the next set of results shows margin flat or down again, the 15% target loses credibility and the rerating thesis weakens. Watch the H1 2026 print closely: any read above 12% is the green light, below 11% is the red one.

The thesis-killer is not the rate cycle, not regulation, not Fluent. It is adviser productivity reversal. If average revenue per adviser goes from £157k back toward £140k while head count grows, the platform is not delivering operating leverage and the 2029 target is unreachable mechanically. That single number — disclosed semi-annually — is worth more than every page of the strategy presentation. Everything else (Main Market move, Hailo rebrand, Dashly acquisition, MAB 2.0 framing) is execution detail in service of that line.

The Fluent goodwill is worth keeping in the back pocket as a tail risk; a £104m intangibles balance against £76m of equity is a mathematical concern but not yet a forensic one — the IB segment is profitable and the original deal screen still pencils. The day to worry is when growth in the IB revenue line stalls before margin expands.