US and UK bank deregulation opens a $1.3tn capital gap

Regulatory easing has given major US and UK banks room to expand balance sheets by about $1.3 trillion over the past two quarters, turning what looked like a technical rules debate into a competitive edge over European and Swiss rivals still being asked to hold more capital.

Capital rules do not just decide how much loss-absorbing equity a bank must keep in reserve. They also shape how much room a lender has to extend credit lines, warehouse securities, support trading clients and keep financing markets liquid. Research from Alvarez & Marsal, outlined in the Financial Times report on the study, suggests the divergence is already visible in bank balance sheets, not merely in policy drafts.

Still, ECB chief supervisor Claudia Buch told Reuters that lower requirements do not automatically produce more credit. That counterpoint matters as much as the headline number. The argument is no longer about whether politicians want lighter rules in principle. It is about whether any capital relief becomes lending, market share and deeper liquidity, or whether it simply feeds shareholder distributions while demand for credit stays soft.

Where the capacity advantage is landing

The cleanest read from the new study is that lighter regulation in the US and UK is already creating usable balance-sheet room. Alvarez & Marsal says major lenders in the two markets have added roughly $1.3 trillion of assets across two quarters and could still have another $2.9 trillion of capacity available if the deregulatory shift continues.

De la Mora, Alvarez & Marsal’s co-head of financial services, framed the issue as a geographic split rather than a single-country policy tweak.

“Global regulators are taking different paths in bank capital reform.”
— Fernando de la Mora, Alvarez & Marsal

His second remark, also reported by the Financial Times, was that “the US is going fast and furious” while the UK is moving in the same direction, if more slowly. Faster easing gives banks more than accounting relief. It improves their ability to take on client business that consumes balance sheet, whether that is corporate lending, Treasury intermediation, derivatives collateral or the inventory that sits behind market-making desks.

One reason the benefit may show up first in markets businesses is mechanical. Trading inventories, repo books and revolving credit facilities absorb balance sheet immediately; broad loan growth depends on whether companies and households actually want to borrow. When demand is mixed, newly freed capacity tends to flow first toward the businesses that protect fee pools and returns on equity.

Available evidence does not break the new room neatly into lending, trading or shareholder payouts, so the first question raised by the study cannot yet be answered with precision. Even so, the Reuters explainer on the global shift in bank capital rules shows the US, UK and several other jurisdictions are recalibrating post-crisis buffers at the same time banks are trying to defend returns and regain flexibility. In practice, that means at least part of the benefit is likely to show up in capital-markets capacity and distributions before it appears in a broad surge of plain-vanilla business lending.

So this becomes a market-structure story rather than a deregulatory slogan. When balance-sheet-heavy businesses become cheaper to run in New York and London than in Frankfurt or Zurich, the competitive effect can arrive before any politician declares victory. Clients follow capacity. So do trading flows.

Europe and Switzerland are making the contrast sharper

Continental Europe sits on the other side of the divide. The same study indicates that seven of the EU’s largest lenders face an expected €1.3 trillion reduction in capacity, a figure that turns regulatory divergence into an explicit cross-border ranking. US and UK banks are being handed room to expand just as parts of the euro area are being pushed toward caution.

Switzerland is the sharpest case because the debate is concentrated in one bank: UBS. Swiss lawmakers have been arguing over how much extra capital the lender should hold after absorbing Credit Suisse, and Reuters reported this month that the parliamentary debate was pushed into August rather than resolved quickly. Earlier in May, Bloomberg reported that debate in Bern had focused on softening the government’s proposal, putting the process on track for an outcome below the roughly $20 billion estimate now in play. Even delay matters. A bank that does not know its eventual capital burden is less free to plan balance-sheet growth than peers being told the rules are loosening.

London, meanwhile, sits in a useful middle ground for global lenders. It is not moving as abruptly as Washington, but the direction of travel is lighter than the euro area’s and far less punitive than the Swiss debate around UBS. For banks deciding where to book balance-sheet-intensive business, the expected path of regulation can matter nearly as much as the final calibration.

For regulators, that is precisely the problem.

“Banks currently have sufficient capital to lend to the economy, but elevated risks, lower risk tolerance and weak demand for loans are preventing the supply of credit from expanding more quickly.”
— Claudia Buch, ECB chief supervisor

Buch’s point, in Reuters’ reporting on the ECB’s warning to governments, is that capital is only one constraint in the credit machine. If borrowers are cautious and banks prefer cleaner distributions, lower minimums may not produce a lending boom. That partially answers the regulator-policy question in the fact bundle: the fight in Europe is not only about competitiveness, but about whether prudential caution still deserves priority in a softer growth environment.

Yet prudential logic does not erase the competitive arithmetic. If two banks face the same client demand but one can hold less capital against the business, it can usually price more aggressively, preserve a higher return on equity or carry more inventory through volatile markets. That is the opening Alvarez & Marsal is pointing to, and it is why the transatlantic gap matters even if loan demand stays mediocre.

The next argument is about allocation, not ideology

Investors may be tempted to describe this as a simple contest between tough regulators and growth-friendly governments. The better reading is narrower and more consequential. Capital relief is an allocation tool. It decides where global lenders can put scarce balance sheet first and which financial centres can absorb more activity when markets turn busy.

For US and UK banks, the near-term benefit may be less a sudden flood of new household or small-business lending than a quieter strengthening of the businesses that depend on flexible balance sheets: securities financing, deal underwriting, trading inventories and large corporate credit lines. For European and Swiss rivals, the cost is not merely higher buffers on paper. It is the risk that clients, revenues and talent drift toward jurisdictions where each unit of balance sheet earns more.

Seen that way, this is not a generic argument for looser rules everywhere. It is a warning that regulatory divergence has become a competitive variable in banking again. Once that happens, capital reform stops being an abstract Basel discussion and starts affecting where market share migrates. On that measure, the US and UK already look ahead, and Europe and Switzerland are still deciding how much caution they can afford.