Grupo BMV, the company that owns Mexico’s stock exchange, has seen its share price fall 1.3% over the past year and 4.2% over five, before dividends. Judge it by the ticker and the franchise looks tired. The business tells the opposite story. Average daily traded value ran 20% ahead of last year through June, assets under custody grew 13% to roughly MXN 47.9 trillion, and BMV pushed its share of the one layer it actually competes for from 78% to 82% in a single quarter. An exchange is not paid on where its own share price sits. It is paid on how much moves across it, and plenty is moving.
That gap between the two pictures is the trade. The desks that cover Mexico in English file BMV under a single heading: a leveraged bet on Banxico. Cut rates, the reasoning goes, long yields fall, and a rate-sensitive financial re-rates. We think the framing is stale, and we think it points at the wrong part of the company. About 80% of BMV’s revenue has nothing to do with the rate path, the peso, or the share war the tape watches, and that 80% is compounding at double digits. The stock treads water anyway. We published the full BMV deep dive last week. This is the one idea inside it the market keeps walking past.
The trade everyone has on
Here is the setup the consensus is waiting for. Mexico still carries one of the widest real-rate cushions in the emerging world, the carry trade we covered in our September 2 issue keeps foreign money parked in peso paper, and the textbook says a proper Banxico easing cycle drags long yields down and lifts the multiple on anything rate-sensitive. Clean story. It has also stopped paying out. The MBono 10-year sits at 9.31%, higher on the quarter rather than lower, Banxico has held the policy rate at 6.50% with no predetermined path, and the cut the model needs is on pause. An asset whose entire case rests on that cut has been, correctly, dead money.
So we did something with our own report that most of the sell side has not: we took the rate cut out of the base case. The re-rate toward Brazil’s multiple that used to anchor the base case is now labelled optionality, not the thesis. BMV has not been a good stock this year. It has been a good business. The whole argument lives in that split.
The money is in the plumbing
An exchange is three businesses stacked on top of each other, and only one of them is a fair fight. The top layer is trading, where orders match and where BIVA, the rival venue launched in 2018, has spent eight years trying to take share. It is loud and visible, and it is about an eighth of BMV’s revenue. The trading fee BIVA can actually contest is closer to 7%. Underneath sits the part nobody live-tweets: post-trade. Every peso of Mexican securities that settles, clears, and sits in custody runs through BMV’s clearinghouse and through Indeval, the country’s central securities depository. There is one depository per market by design, the way there is one set of rails under a rail network. Custody alone is about 31% of revenue, and the Information Services data business adds another 18%, together roughly half the company. Add interdealer brokerage, issuer services, and clearing, and you reach roughly 80% of the company, none of it up for grabs.
This layer does not care what the IPC did last month or who wins the next listing. It grows with the stock of assets held and the flow settled across them. Assets under custody rose 13% to about MXN 47.9 trillion, driven by Afore inflows and heavier local and cross-border activity, and each additional MXN 5 trillion of custody drops roughly MXN 159 million of revenue onto a near-monopoly cost base. That is how a company posts a 56.2% EBITDA margin and a 21% return on equity. The share price has ignored both.
The data business behaves the same way. Information Services sells the price feeds, indices, and reference data that every broker and Afore in the country pays for, and that bill grows with the number of issuers and instruments listed, not with which way they move. It is a subscription toll on Mexican financial activity, and it collects through the up months and the down months alike.
Now the part that should embarrass the “share-loser” label. The one contested layer, cash-equities trading, is the layer BMV is winning. Its share of that flow climbed from 78% in the first quarter to 82% in the second. So the fight the market scores every day is the smallest slice of the company, and BMV is pulling ahead in it. The four-fifths that actually pays the dividend was never in the fight to begin with.
Priced like the loser it isn’t
Put a price on that and the mismatch is hard to unsee. BMV trades at 7.0x trailing EV/EBITDA. B3, the vertically integrated Brazilian exchange that is the closest thing to a true comparable, trades at 11.4x. The global-exchange median is 16.2x. The market is valuing a net-cash post-trade monopoly as though it were a cash-equities venue bleeding share, which is the one thing the numbers say it is not doing.
We are not arguing BMV deserves B3’s multiple outright. B3 grows faster, earns a margin near 70%, and runs a far bigger derivatives franchise, so it has earned part of the gap. Our base case asks for something smaller: a modest move up within BMV’s own five-year range, to 7.5x from 7.0x, which a finished platform and a wider post-trade moat justify with no help from Mexican rates. Even that leaves it nearly four turns below Brazil.
The floor under this is tangible. Net cash runs about MXN 3.3 billion, near 16% of the market cap, with no financial debt. The dividend yields about 5.4% on a payout of MXN 2.05 held flat, and total capital return reaches roughly 81% of earnings once the buyback is counted. On forward earnings the discount to B3 mostly closes, about 12.6x against 13.8x, so the market is not pricing an earnings collapse. It is simply refusing to re-rate the multiple. Our fair value is MXN 40.6 at the center of a MXN 38 to 43 range, about 7.5% above the September 2 close of MXN 37.80. The number that matters most is quieter: our no-re-rate DCF lands at MXN 39.40, already above today’s price. Even if the multiple never moves, the cash flows clear spot and the 5.4% pays you to hold. The demoted rate lever is not worth nothing, for the record: each 50 basis points that comes off the ten-year MBono, and with it our discount rate, adds about MXN 1.3 to our fair value. We just decline to underwrite it, which is the point of a base case that holds without it. The bear case near MXN 35 needs the margin to actively break; a simple lack of catalysts does not get you there. We own the asymmetry and the yield, not a bet on the next print. Fitch rates the paper AAA(mex).
The re-rate stopped waiting on Banxico
If the rate cut is no longer the trigger, something else has to be, and there is a candidate the rates crowd is not modeling. BMV is finishing a multi-year platform rebuild, migrating its derivatives and clearing systems onto Nasdaq technology, and the spending rolls off as the build lands. Capex falls from about MXN 480 million this year toward roughly MXN 300 million, and the central-counterparty fee base of around MXN 250 million could roughly double as the new platform captures over-the-counter and repo volume. The early volume is cooperating: dollar futures averaged USD 663 million a day in the first half, up 46% on a year earlier, on the system BMV is now scaling. The tell we are watching is simple: the first year-on-year margin expansion since the build began. Feeding it is a listings pipeline that finally has a pulse, with four confidential IPO processes in train, Banamex floated as a candidate, and four IPOs in 2025 after an eight-year drought. Each listing pours more assets into the custody and clearing flywheel described above.
The leading edge is already visible in the local press, where some coverage has started to frame BMV around the derivatives platform rather than the Banxico call. That is the re-rate we gate on, beginning to show up in the right place. It has a clean disconfirm, too. Second-quarter EBITDA margin printed 55.3%, right on the line we drew, and a sustained break below 55% with capex still elevated would send us back toward the floor rather than the re-rate. We would rather own a thesis that can be proven wrong on a single metric than one that can only ever be re-explained.
The bottom line
This week Hacienda tables the 2027 budget, and the rates desks will comb it for anything that moves the MBono. Our BMV call does not hinge on their read. The error the English-language coverage keeps making is treating BMV as a proxy for a rate cut that keeps not arriving, and then losing interest when the cut is postponed again. The company underneath that mistake is a net-cash post-trade and data monopoly, gaining share in the only slice anyone contests, throwing off a covered 5.4% yield, and priced at 7.0x against 11.4x for the same kind of asset one border south. Buy the plumbing. The rate cut, whenever Banxico gets around to it, is the free option stapled on top.
The Investment Case | September 7, 2026
This article is for informational purposes only and does not constitute investment advice. The Investment Case is not a registered investment advisor. Always conduct your own due diligence before making investment decisions.