One Corridor at a Time

A car part made in the Bajío can cross the US-Mexico border more than once before it ends up in a finished vehicle, stamped on one side, wired on the other, assembled back across the line. At every crossing, the part clears customs faster and more predictably than the money that pays for it.

Mexico and the United States now trade more goods with each other than the US does with any other country, an estimated $871.6 billion in 2025, which by most counts makes this the largest bilateral trade relationship in the world. The mix of what crosses is changing, too. For decades cars defined this corridor, and last year it became servers, the physical hardware of the AI buildout. Computer equipment overtook vehicles as Mexico's largest export to the United States, on the strength of build-outs like Foxconn's near Guadalajara, where a large share of the racks behind the US data-center expansion are now assembled. Across electronics, auto parts, and the other inputs everything else depends on, I suspect the weight of this relationship is still being underestimated, and that it keeps compounding from here. All of that trade has to be paid for, which almost by definition makes this one of the heaviest payment corridors anywhere. Most of the attention still goes to the freight, the factories, and the supply chains moving closer to home. Much less goes to the plumbing that has to move the money the other way, a layer that has stayed suspended in time while everything above it modernized.

The Dollar Problem in Mexico

Something easy to miss from the outside is how much of the difficulty in this corridor sits on the dollar leg. Pesos move well enough inside Mexico, and it is the dollars that have been hard to get and harder to move out of the country. The history of why goes back more than a decade. After the financial crisis and the wave of money-laundering enforcement that followed, many global banks decided that clearing dollars for Mexican institutions was more risk than it was worth and subsequently pulled back. Each exit made sense on its own terms, since the cost of properly monitoring a mid-sized correspondent account rarely justifies the revenue it produces, but in aggregate they created a narrowing that no single institution intended. The downstream effect was that dollar access in Mexico narrowed at the moment the real economy needed more of it. One clear sign of how serious this got is that the Bank of Mexico eventually built its own system in 2016 to clear dollars between Mexican banks, so that companies with dollar obligations were not so dependent on correspondent banks in the US. A central bank does not take on that kind of construction for a temporary problem.

Exporters, importers, and the platforms that serve them are the ones stuck in this gap, companies with substantial revenue and legitimate counterparties. One of their hardest problems is often just getting paid across a border and turning what they earn into the currency they need. The factory that stamped the part at the top of this piece sits in exactly that position, accumulating costs in pesos, receivables in dollars, and the distance between them measured in days. Most of those businesses already have a fintech or a platform they trust for their financial operations, and what those providers have been missing is rails underneath they can rely on. That is the greenfield, latent demand sitting in corridors that incumbents find awkward to serve. Mexico anchors the entire region.

A Two-Ended Problem

It helps to treat this as a problem with two ends. The US side is where a lot of these flows originate and where a good deal of them come to rest, and the Mexican side is where the money gets put to work, paying suppliers, payroll, and everything else that runs in pesos. The genuine difficulty is the coordination across a developed market and an emerging one, so that what starts on one side arrives cleanly on the other. That is where the cost and the waiting have always originated, and it is the part we set out to take on ourselves.

Announcing our Entry into Mexico

Earlier this week we announced Sphere's entry into Mexico, an operation built around a registered local entity and a team hired from inside the market, working closely with regulated partners and affiliates. It is the culmination of years of quiet work. The conviction behind it dates to 2023, when this industry was climbing out of a hard reset, most of the market had left, and the companies still building were searching for a use case that genuinely mattered. We had a front-row seat through that period, as an early customer and distributor of the payment rails that ended up defining the cycle, especially across Latin America. It was evident even then that doing this properly meant investing deeply in the markets we wanted to serve, because every country is starkly different from the last, in its rails, trade routes, cultural profile, and regulatory posture, and each one compounds the complexity of the build. Our approach is probably slower than people expect for exactly that reason, but the best cross-border experiences I have seen come from that depth of investment.

The sequencing of the buildout mattered more than any individual piece. We put compliance ahead of the product, where it belongs, and built our Mexican operations around a money transmitter registered with the CNBV, so the peso leg is handled in-country under that entity's authorization. There are faster ways into a market, and I understand why companies take them, since bolting on access from a distance gets you to a launch announcement quickly. We were unwilling to make that trade. Standing comes from being present and accountable in the market itself, and when compliance decisions are made by the people who live with the consequences, the institutions on the other side can see exactly who they are dealing with. The banks that pulled back from Mexico a decade ago left because they could not see through to the other end of the flows. The whole shape of our approach is to be a counterparty they can see all the way through.

We also hired locally, because the biggest investment of all is the people you build around. Payments in Mexico run on relationships and regulatory fluency that cannot be imported. The people who have them earned them over years inside the market, at the institutions and fintechs that did the hard learning first. The team we've assembled is deliberate, made up of people who have built and sold companies here, run compliance inside some of the most scrutinized firms in the industry, and kept the operations of Mexico's key fintechs running from the inside. Building that team took longer than wiring up a remote sales motion would have. That can be a headache, but it is a large part of why the work is worth doing. The frictions that make this market hard to enter are the same things it takes to serve it well.

MXN <> USD on Regulated Rails

For now what we are doing in Mexico is straightforward cross-border payments for the fintechs and platforms that already serve the businesses moving goods across this border. The factory in the Bajío has a provider it trusts, and our work is to give that provider better rails than the ones it has today. The rails are API-first and built for same-day settlement, and the full announcement carries the specifics. The template is a regulated leg in-country, and it is one we intend to repeat across the region, one corridor at a time.

The unglamorous work of building a regulated operation and learning a market from the inside does not make headlines, and in this business it tends to be the compliance-heavy work that decides who is still standing a few years on. Financial infrastructure runs on longer clocks than the companies that build it usually admit, and my guess is that the rails being laid in this corridor now decide how the region trades for decades. Three years ago this industry felt like a small boat on open water. The work now is building the right ports. Today the part still clears the border faster than the payment that pays for it, and closing that distance is the whole of what we are building. 

Sphere's MXN <> USD rails are in private beta ahead of a mid-September launch. Fintechs and platforms interested in integrating can request access here.