The score you can't shop around for

Start with the mechanism, because the mechanism is the whole story. FICO's moat isn't technological. Its algorithm is decades old and the inputs, payment history, utilisation, length of credit, are public knowledge. The moat is regulatory and contractual: Fannie Mae and Freddie Mac mandate FICO scores for loans entering the conforming market, and that mandate was only loosened in 2025 to *permit* VantageScore alongside FICO, not replace it.

Lenders now have to choose, and choosing the untested option on a loan they'll sell to a GSE carries a career risk that $5 in savings doesn't offset. So FICO holds its price. Not because it's confident competition won't bite, but because it has calculated, correctly, that the switching cost isn't about the product at all. It's about who gets blamed if a loan goes bad and the credit model used to approve it wasn't the industry standard.

That's the pattern worth naming: infrastructure that scores, clears, or gatekeeps money stops competing on price once it's embedded in somebody else's compliance obligation. The product becomes irrelevant. The switching cost becomes structural, not technical, and structural costs don't erode the way technical ones do. A better app doesn't fix a GSE mandate.

San Diego just demonstrated the same mechanism from the other side of the counter. On 23 October, the city announced it's leaving the municipal bond group that has issued and managed billions of dollars of its debt, after the SEC raised oversight concerns about the group's practices. Municipal bond conduits exist to pool smaller issuers and get them better terms in the market, which sounds like healthy aggregation.

In practice, once a city has run a decade of bond issuance through one platform, with legal documentation, trustee relationships, and investor familiarity all built around that conduit, leaving isn't a vendor swap. It's closer to re-platforming a bank. San Diego is only doing it because a federal regulator forced the question. Left alone, most issuers don't leave.

They can't afford the friction of finding out what breaks. , - The pricing power shows up in the willingness to ignore a cheaper, perfectly adequate rival sitting right next to you. FICO isn't claiming VantageScore is inaccurate. It's betting lenders won't risk being the first to find out what happens if it is, on someone else's mortgage.

That's not a product argument. It's an insurance argument, and insurance arguments don't respond to price competition the way genuine substitutes do. Hong Kong Exchanges and Clearing is running an almost identical calculation on trading hours, for a slightly different reason. HKEX is reportedly weighing an extension of its trading day, partly in response to Nasdaq's plan to push toward a 23-hour session.

The lunch break under threat is a genuinely old piece of market structure, one that predates electronic trading entirely and exists now mostly because changing it means renegotiating settlement systems, market-maker obligations, and retail trading habits that have calcified around a schedule nobody designed on purpose. HKEX isn't resisting longer hours because it thinks the lunch break is sacred.

It's resisting because every hour added is a cost imposed on clearing members and retail brokers who built their operations around the existing clock, and someone has to eat that cost before the exchange captures any benefit from matching Nasdaq's ambition. What connects FICO, the muni bond conduit, and HKEX's lunch break is that none of them are actually being disciplined by competition in the way a textbook would predict.

A cheaper, functionally similar alternative exists in two of the three cases, and the incumbent isn't losing share to it. The reason is that the thing being sold isn't really the score, the bond platform, or the trading window. It's the fact that everyone downstream has already built their compliance, their legal documentation, and their operational calendar around the incumbent's version of the product.

Ripping that out costs more than the saving on offer, and the people who'd have to do the ripping, loan officers, city treasurers, retail brokers, aren't the ones who benefit from doing it. , - "The 30-year mortgage is a miracle of the modern world," Robin Wigglesworth, author of *A Fabulous Debt*, put it recently, discussing bonds as the plumbing beneath the entire economy.

He's right, and the plumbing metaphor is worth taking literally rather than decoratively: plumbing is invisible until it's expensive to replace, and the people who installed it get paid every time water runs through, regardless of whether a cheaper pipe exists next door. FICO, the muni conduits, and exchange trading calendars are the plumbing of pricing risk and settling trades.

Nobody chose them in any meaningful sense this year. They were chosen once, decades ago, by regulators and market conventions, and every subsequent year of use has made the choice more expensive to unmake. The competing explanation, the one FICO and HKEX would both offer, is that this is just prudent conservatism in systems where errors are expensive.

A bad credit model that misprices risk across millions of mortgages is a genuine systemic problem, not a hypothetical one, and exchanges that rush into longer trading hours without proper settlement infrastructure can create real operational failures. There's truth in that. Caution in financial infrastructure isn't automatically rent-seeking.

But caution and pricing power tend to travel together conveniently for the incumbent, and FICO's refusal to even test a modest discount, rather than simply resisting a wholesale switch, is hard to explain as pure risk management. A $7 FICO score alongside a $5 VantageScore would still clear the same mortgages. It would just make less money.

The people who lose in this arrangement are diffuse and quiet, which is exactly why the arrangement survives. Mortgage borrowers pay marginally more because lenders pass FICO's fee through in closing costs. San Diego taxpayers likely paid slightly worse terms on bond issuance for years before an SEC inquiry forced the city to notice. Hong Kong retail investors get an extra lunch-break trading session they didn't ask for, timed to a competitive threat from New York rather than genuine local demand.

None of these costs are large enough, individually, for anyone to organise against. That's the design feature, not a flaw: toll infrastructure survives by extracting small amounts from people who have better things to do than fight a $10 fee or a bond platform's governance structure. , - Watch what happens next in each of these three cases, because the resolution will tell you which force wins when switching costs meet regulatory pressure.

The GSEs could mandate VantageScore acceptance more aggressively, which would force FICO's hand in a way market competition alone hasn't managed in years. The SEC's scrutiny of San Diego's bond group could spread to other municipal conduits, prompting a wave of departures that finally tests whether cheaper issuance platforms can absorb that volume.

HKEX could extend hours and discover, as Nasdaq will also discover with its 23-hour ambitions, that liquidity doesn't simply appear because the clock runs longer, it has to be built, and building it costs real money for market-makers who were previously able to go home. The lesson for anyone building something that scores, clears, or gatekeeps financial decisions is that the real moat was never the algorithm or the trading engine.

It's whoever else has already built their compliance process, their legal paperwork, or their daily schedule around your version of the product. Disrupt the product and you've done half the job. The other half, dislodging everyone who depends on the old version staying exactly where it is, is the part that actually determines whether FICO drops its price, whether San Diego's exit becomes a trend, or whether Hong Kong keeps its lunch break for another decade out of pure institutional inertia dressed up as prudence.