Marex Group's Clearing Annuity Is Priced Like a Prop Book

Average client balances inside Marex Group's clearing business ran $19.1bn in the second quarter of 2026, up 49% from $12.8bn a year earlier, and the net interest income they generated rose 31% to $77.5m — through a period in which the average Fed Funds rate fell 70 basis points . That combination is the whole argument. A pool of client cash that grows fast enough to outrun a rate cut is not a rate trade; it is an annuity with a rate kicker, and it sits inside a company the market currently values at roughly eleven times next year's earnings.

Marex is the layer beneath the exchanges. It clears and executes futures and options for commodity producers, hedge funds and trading houses; it runs a growing prime brokerage; it makes markets in metals, energy, agriculture and UK equities; and it manufactures bespoke hedges and structured notes for corporates and investors. Where CME and ICE own the venue, Marex owns the client relationship and the plumbing that connects the two — the clearing member whose balance sheet stands between a Dutch greenhouse operator and a European power contract. It listed on Nasdaq in April 2024 and has since compounded through acquisition and organic share gain at a rate that would normally command a premium rating. It doesn't. Shares trade at about $76.45 intraday on September 9, close to the top of a 52-week range of $27.91 to $79.11 and nearly triple the low , and the multiple has barely budged through the ascent because earnings have risen just as fast.

My case is that the market has correctly identified a reason for the discount and materially overstated its size. The verification architecture around Marex's numbers is genuinely deficient — its auditor said so, in writing, the first year it was asked. But the business underneath earns a mid-thirties return on equity, is rotating its revenue mix toward embedded infrastructure services, and is priced at barely more than a pure proprietary trading firm. That gap is the opportunity, and it is not a subtle one.

The annuity that grew while rates fell

Start with what has been demonstrated rather than projected. Second-quarter revenue of $695.8m was up 39% year on year, adjusted profit before tax rose 56% to $165.9m, and the adjusted PBT margin expanded 250 basis points to 23.8%; for the first half, revenue of $1,388.1m was 43% higher and adjusted PBT of $318.6m up 57%, on a 23.0% margin . Adjusted return on equity for the half was 37.5% . Management's...