The Nigerian banking sector has three unresolved files after the March 31 recapitalisation deadline: Polaris Bank and Keystone Bank, both under CBN supervisory management since January 2024, and Union Bank, which is fighting its regulator in court. BETAR covered the enforcement mechanics in Chapter 2. Chapter 3 is the M&A read: who is positioned to acquire these institutions, what are they worth in distress, and what the resolution path tells us about the power balance in Nigerian banking after the biggest capital exercise in two decades.
The Heritage Bank liquidation in May 2024 set the floor for this analysis. Heritage had non-performing loans exceeding 80 percent of its book, total loans above customer deposits, and no private buyer willing to absorb those fundamentals at any meaningful price. Enterprise value: zero. The NDIC paid insured depositors and began asset liquidation. That outcome — a zero-EV bank failure that cost the regulator credibility and depositors above the N5 million insurance cap their full balances — is precisely what the CBN wants to avoid repeating at scale with Polaris, Keystone, and Union Bank. That constraint shapes the price and the process.
The Buyers: Who Is Actually Positioned
Access Bank is the most obvious candidate and the only Tier-1 institution with a recent, relevant track record. Its 2019 acquisition of Diamond Bank — a distressed mid-tier lender struggling with NPLs and a depleted deposit base — remains the most instructive precedent in Nigerian banking M&A. Access absorbed Diamond’s branch network (over 500 outlets), its mass-market deposit base, and its USSD banking infrastructure. It paid approximately N90 billion in an all-share deal, took on Diamond’s liabilities with full CBN support, and emerged with a combined institution that is now Nigeria’s largest bank by assets. The Diamond playbook — absorb the branch footprint, manage down the NPL book with patient capital — is directly applicable to Polaris or Keystone.
Access Bank CEO Roosevelt Ogbonna has not publicly flagged an acquisition appetite for the non-compliant three, but the bank’s capital position — it cleared the N500 billion international licence threshold with headroom — gives it the balance sheet to execute. The strategic logic is branch density and deposit volume in retail banking segments where Polaris has historical presence. The question is price: what discount does Access demand to take on another distressed book, and is CBN willing to provide bridge support similar to the N700 billion facility that underwrote the Unity–Providus merger in 2024?
Zenith Bank has the capital but a different strategic posture. Under Jim Ovia’s founding architecture and through successive management, Zenith has grown primarily organically — it has not made a significant acquisition since entering retail banking in the early 2000s. Its Tier-1 classification rests on corporate and institutional banking profitability rather than mass-market branch density. Absorbing a distressed mid-tier bank with legacy retail infrastructure is not the Zenith model. It would require a strategic pivot that the current leadership has not signalled.
GTCO (Guaranty Trust Holding Company) is the third Tier-1 institution with sufficient capital, but its recent history cuts against a distressed acquisition. GTCO’s post-bank holding company restructuring has been oriented toward building out adjacent businesses — GTBank’s digital banking product, HabariPay, Guaranty Trust Fund Managers — rather than absorbing branch networks. Its brand positioning as Nigeria’s “premium” retail bank is in tension with the operational reality of integrating a Polaris or Keystone customer base.
Fidelity Bank is a more structurally interesting candidate. Having cleared the national banking licence threshold during the recapitalisation exercise — its capital raise brought it materially closer to the N200 billion floor — Fidelity would benefit from the branch network expansion that a Polaris acquisition could provide. A Fidelity–Polaris combination would not create a mega-bank, but it would cement Fidelity’s position as the leading mid-tier institution with national footprint ambitions. The constraint is execution bandwidth: Fidelity has never absorbed a distressed acquisition and the management infrastructure for that integration is untested.
What Polaris and Keystone Are Actually Worth
Pricing a distressed Nigerian bank requires working through four inputs: deposit base value, branch network replacement cost, performing loan book quality, and licence premium.
Polaris Bank’s deposit base is the core asset. Under AMCON ownership and through successive private owner transitions, Polaris has maintained a retail deposit franchise with a national presence — approximately 100 branches across Nigeria’s major commercial cities. Its licence is a national commercial banking licence, which allows full deposit-taking and lending activities and commands a regulatory premium over a regional licence. The performing portion of its loan book, while thin relative to the NPL legacy, represents incremental yield capacity for an acquirer.
Keystone Bank is smaller in deposit base and branch footprint, and its shared ownership structure with Polaris — Sigma Golf Nigeria Limited controlled both before its dissolution — suggests their financial situations are related, not independent. The CBN has been running both institutions under supervisory management simultaneously, which creates an administrative logic for a combined resolution: a directed Polaris–Keystone merger that creates a single mid-tier institution, similar in structure to the Unity–Providus combination.
A directed Polaris–Keystone merger — the most likely CBN-preferred outcome — would produce an institution with combined deposits in the range of N700 billion to N1 trillion, a national branch footprint of 150-plus outlets, and a capital position that, with CBN bridge support, could meet the N200 billion national licence threshold. That institution is then either held by the CBN via AMCON mechanisms pending a private-sector sale, or offered to a willing acquirer at a price that reflects the distressed fundamentals minus the NPL cleanup cost that the CBN absorbs.
The Heritage Bank floor — zero enterprise value — sets the downside. The Unity–Providus precedent — N700 billion in bridge support for a voluntary merger — sets the structural template. Polaris and Keystone sit between those poles: too large to liquidate cleanly, too distressed to attract an acquirer without CBN facilitation, but viable as a combined entity if the regulator underwrites the transition.
The Union Bank Special Situation
Union Bank is not Polaris or Keystone, and the resolution path is correspondingly different. Union Bank’s core shareholders — Titan Trust Bank, Luxis International, and Magna International — are contesting CBN authority in court, not running from it. The Federal High Court ruling of March 25, which nullified the CBN’s January 2024 board dissolution and reinstated the Gumel-led board, has created a governance structure that CBN-appointed management cannot easily override pending the appeal. That appeal, pending before the Lagos Court of Appeal, will determine whether CBN supervisory powers under BOFIA 2020 override shareholder rights in governance disputes — a precedent that matters across the entire banking sector.
The litigation strategy adopted by Titan Trust and its co-shareholders is most credibly read as a negotiating posture. Titan Trust Bank — which itself cleared recapitalisation requirements — is a financially capable institution whose Gulf-linked capital structure gives it access to additional equity. What the shareholders want from CBN is a resolution that preserves their economic stake in Union Bank rather than a CBN-directed sale to a third party at a distressed price. A negotiated capital injection by the existing shareholders — bringing Union Bank to N200 billion compliance with CBN approval — would resolve both the legal contest and the regulatory file simultaneously. Whether CBN governor Cardoso is willing to accept that outcome after the legal confrontation is a relationship question as much as a financial one.
The Concentration Arithmetic
Any acquisition by a Tier-1 institution — Access Bank absorbing Polaris, for example — tightens the already compressed concentration arithmetic at the top of Nigerian banking. The top five institutions already control approximately 85 percent of sector profits and 99.96 percent of total assets. A distressed mid-tier acquisition by Access would extend that dominance into the remaining competitive segment below Tier 1, reducing the viable alternatives available to SMEs, regional corporates, and mass-market depositors who currently hold accounts with Polaris or Keystone.
The CBN is aware of this tension. Its recapitalisation exercise was designed to strengthen the system, not homogenise it. Whether the regulator imposes structural conditions on any Tier-1 acquisition — branch disposal requirements, loan concentration limits, CBN veto rights on deposit pricing — will shape the economics of any deal and the appetite of would-be acquirers. An Access Bank that is required to spin off 40 branches to secure merger approval is running a different calculation than one that absorbs the full Polaris footprint without conditions.
BETAR Assessment
The most likely resolution scenario for Polaris and Keystone is a CBN-directed merger producing a combined mid-tier institution — structured analogously to Unity–Providus — with AMCON support bridging the capital gap to N200 billion. That combined entity is then either stabilised under continued regulatory oversight or offered to a willing private-sector acquirer at a price reflecting a cleaned-up deposit franchise and performing loan book. Access Bank is the most credible acquirer candidate; Fidelity Bank is the structural dark horse.
Union Bank resolves more slowly. The Court of Appeal timeline introduces a 6-to-12-month period of governance uncertainty during which neither the existing shareholders nor the CBN can execute a clean transaction. The most likely terminal outcome is a negotiated recapitalisation by the Titan Trust-led shareholder group, with CBN extracting governance and capital commitments as the price of restoring normal supervisory relations. A third-party sale remains possible if the appeal fails and the regulator opts for directed consolidation — but that outcome is less probable than a negotiated settlement that preserves face on both sides.
Nigeria’s banking sector will emerge from this exercise with fewer institutions, higher concentration, and a capital base that is materially stronger than anything the system has had since Soludo’s 2006 consolidation. The question is whether that strength translates into the infrastructure financing the CBN designed it for — or whether the cost of concentration, paid in reduced competition and market power at the top, becomes the next regulatory problem to manage.
CBN Recapitalisation Arc: Chapter 1 — Who Made the Cut | Chapter 2 — Enforcement Aftermath | Chapter 3 — The Acquisition Question (this article)
Related BETAR coverage: Africa Bank-Fintech M&A 2026 | MTN IHS Towers: Nigeria’s Largest M&A of 2026
— Business Desk, BETAR.africa
