Key takeaways
Bank retreat varies dramatically by segment. US banks have already recovered majority share in billion-dollar-plus buyout financing.
Regulation incentivizes banks to fund private credit, not just exit lending. Indirect lending through private credit vehicles is five times more capital-efficient for banks.
Deregulation is directionally favoring bank re-entry. The March 2026 Basel III reproposal would cut CET1 requirements by up to 7.8%.
The fundraising narrative is now testable. PitchBook data, Fed research, and Basel III details are all publicly available to investment committees.
A $3.5 trillion thesis that most fund decks never stress-test
In 2025, British bank lending to non-financial companies stood at 59% of GDP, the lowest level since 1998, down from roughly 90% at the 2008 peak. SME lending has halved over 15 years. Raoul Ruparel, BCG's director for growth, told the Financial Times that banking has “shifted from supporting productivity growth to dragging on it.”
That data point lands in a market where private credit has reached approximately $3.5 trillion in AUM globally, and where nearly every fundraising deck cites bank retreat as a foundational thesis. But the retreat varies dramatically by segment, geography, and deal size. And the mechanism underneath, where regulation actively incentivizes banks to fund private credit rather than lend directly, complicates the clean version of the story that most fundraising materials present.
Three retreats running at different speeds
The macro headline masks at least three distinct lending dynamics, each with different competitive implications for fund managers.
Large-cap buyout financing is already contested
Banks' share of buyout financings above $1 billion fell to 39% in 2023, down from roughly 80% in the five years prior. By 2025, that share had recovered to just over 50%. In the largest transactions, banks are actively competing again.
Middle-market and smaller LBOs remain private credit territory
Private debt financed 77% of all global leveraged buyouts in 2024, rising to 83% in early 2025. Banks funded just 23%. The bank recovery is concentrated at the top of the market; below that, private credit dominance is widening. For 2026, the structural retreat from middle-market loans “shows no signs of reversing, despite regulatory relief.”
UK SME lending is declining for different reasons entirely
BCG's data reveals a compositional shift alongside the volume decline: real estate SMEs now account for 51% of all small business loans, up from 39% a decade ago. Banks have redirected lending toward property-secured assets, driven by profitability constraints and due diligence costs on smaller borrowers.
Even where regulation loosened, the behavioral response has been slow. Regional banks remain cautious on leveraged lending despite the December 2025 withdrawal of guidance, largely because of lingering commercial real estate exposure.
A fund targeting $500 million buyout financings in the US faces a fundamentally different competitive environment than one originating $50 million middle-market loans or lending to UK SMEs. Most fundraising decks don't specify which version of ‘retreat’ they're underwriting.
More efficient to fund private credit than to lend directly
In November 2025, HSBC's Michael Roberts testified before the UK House of Lords financial services regulation committee. He explained that a direct loan to an SME attracts a 100% risk weighting for the bank. Funding a private credit group to finance the same loan through a securitization vehicle attracts 20%. Indirect lending is five times more capital-efficient, even though the underlying borrower is identical.
That regulatory arithmetic explains why the binary “banks out, private credit in” framing oversimplifies. Banks repositioned within the lending chain. They moved up the capital structure, funding the funds rather than originating the loans.
Capital requirements made it more profitable for banks to "lend to lenders" than to lend directly to risky middle-market firms. Private credit growth, they concluded, was “fueled by access to bank funding.”
The institutional evidence:
The Federal Reserve's FEDS Notes (May 2025) documented that bank lending to private credit funds has been growing as a share of both banks' total loan balances and BDC balance sheets.
Cleary Gottlieb's 2026 outlook describes banks as “crucial enablers” of private credit through subscription facilities, NAV facilities, and fund financing.
BIS Working Paper 1267 (May 2025) found club deals and revolving credit lines with bank participation increasingly common in private credit.
A Kansas City Fed analysis from February 2026 examined whether banks and private credit are “competitors or partners” and found the relationship is increasingly both.
A fund that relies on bank-provided subscription lines while its deck frames banks as permanently retreating is making two claims that pull in opposite directions. Allocators are in a position to notice.
Where bank capital requirements are heading
On March 19, 2026, US federal banking agencies issued three proposals to overhaul the bank capital framework, formally rescinding the 2023 Basel III endgame proposals that had called for significantly increased requirements. The direction reversed.
The proposed CET1 capital requirement reductions:
Category I and II firms (the largest banks): -4.8%
Category III and IV firms: -5.2%
Smaller banking organizations: -7.8%
The FRB voted 6-1 to advance, with Governor Barr as the sole dissent. These remain proposals in comment period (due June 18, 2026), but the package “improves the economics of traditional lending in ways that could pull some activity back toward banks.” Bloomberg described the reproposal as aimed at “narrowing the capital gap that threatened to migrate lending out of the US banking system.”
Separately, the OCC and FDIC rescinded the 2013 leveraged lending guidance in December 2025, though the Federal Reserve has not withdrawn its version.
How quickly regulatory relief translates into competitive re-entry is uncertain. That it will, in some segments, is not.
What an investment committee will ask next
Private credit is now “roughly the same size as the large, broadly syndicated loan and high-yield debt markets, creating more direct competition.” The ACC noted that “the return of banks and BSL investors to the market, after reduced activity in 2022 and 2023, has led to narrower pricing and spreads, especially in the US.”
And here's a detail that complicates both sides of the narrative: BCG calculates that total UK credit remains 17% below its historical trend. Private credit hasn't fully replaced what banks withdrew. The lending ecosystem contracted, and neither side has fully filled it.
Investment committee members reviewing private credit allocations now have access to the PitchBook market share data, the Fed research on bank-private credit interdependence, and the Basel III reproposal details. These are public, searchable, and increasingly cited in allocator research. A fund's investor materials should address the counter-evidence before the IC raises it.
The three questions that will surface in diligence:
Which specific lending segment is the fund targeting, and what does competition look like there?
What evidence supports that banks won't re-enter that segment as capital requirements decrease?
How does the fund's reliance on bank-provided fund financing coexist with a claim that banks are permanently retreating?
Bottom line
The counter-evidence has accumulated fast. The PitchBook market share data, the Fed and BIS research on bank-private credit interdependence, the Basel III reproposal details: all of it is public, citable, and increasingly showing up in IC-level research. That changes the diligence dynamic.
Managers whose decks cite bank retreat as a single, settled structural shift will face questions they may not have prepared for. The ones who have already segmented the thesis, specified which lending niche they occupy, and addressed what happens if competitive conditions change will have built their credibility before it gets tested. The difference between those two positions is a communication problem, and it's solvable before the next roadshow starts.
Getting the thesis right is an investment challenge. Getting the materials to reflect it is a positioning challenge, and one that's worth solving before allocators solve it for you.
