PONV — Point of Non-Viability

PONV (Point of Non-Viability) is a concept introduced by the Basel III capital framework. It refers to the moment at which a banking regulator formally determines that a bank can no longer sustain normal operations under its own power. Once this determination is made, the loss-absorption clauses in the bank's AT1 and CoCo bonds are triggered immediately.

Before Basel III, the sequence and trigger for loss absorption in a bank crisis were not clearly codified. Following the 2008 global financial crisis — during which major banks were rescued with taxpayer funds (bail-outs) — international regulators enshrined the principle that private capital must absorb losses first. The PONV clause is the central enforcement tool for that principle. When a regulator declares PONV, AT1 and CoCo holders bear the losses before any public funds are deployed.

The authority to declare PONV rests with each country's financial supervisory body. In Switzerland it is FINMA; in the EU it is the ECB (Single Supervisory Mechanism) together with each country's NCA (National Competent Authority); in the UK it is the PRA (Prudential Regulation Authority); in the US the FDIC and Federal Reserve hold comparable authority. A critical nuance: PONV does not require that the bank has already failed. A forward-looking assessment that the bank will be unable to recover under its own steam is sufficient for a declaration. This prospective, judgment-based nature is a major source of uncertainty for AT1 investors — the trigger point is not a precise quantitative threshold but a supervisory call.

Assuming that PONV provisions work the same way in every jurisdiction is one of the most costly mistakes an AT1 investor can make. The sequence of loss absorption and the scope of supervisory discretion vary meaningfully across countries, meaning the jurisdiction of issuance can be decisive for investment outcomes.

Switzerland operates the framework with the strongest supervisory discretion. Under Swiss banking law and FINMA's mandate, FINMA can write down AT1 in full before shareholder equity has been entirely extinguished. This "AT1 write-down before equity" principle was at the heart of the Credit Suisse episode of 2023. In the forced CS-UBS merger, FINMA granted shareholders residual value in the form of UBS shares while writing CHF 16 billion of AT1 to zero. This appeared to invert the conventional insolvency hierarchy — shareholders typically go to zero before more senior creditors absorb losses — and amplified the market shock.

The EU operates under BRRD (Bank Recovery and Resolution Directive). BRRD's general principle is that losses are absorbed from the bottom of the capital structure upward: equity → AT1 → Tier 2. Inverting the capital hierarchy under the ECB's SSM is structurally harder than in Switzerland. That said, exceptions to the pari passu principle do exist and investors should not treat EU protection as absolute.

The UK's PRA, post-Brexit, operates its own resolution framework (UK SRR) but follows similar foundational principles to the EU, generally maintaining equity-first loss absorption. The takeaway for investors: the same "AT1" label affixed to bonds from Switzerland, the EU, the UK, Singapore, and Hong Kong carries materially different legal protection profiles. Jurisdiction and prospectus terms must be analyzed with the same rigor as the issuer's credit fundamentals.

On 19 March 2023, FINMA formally declared Credit Suisse (CS) to have reached the Point of Non-Viability and approved a forced merger with UBS. The decision resulted in the complete write-down of CS's outstanding AT1 bonds, totalling CHF 16 billion — the largest single loss event in the history of the AT1 market.

A brief reconstruction of events: from October 2022 onward, CS suffered accelerating client outflows, serial management changes, and mounting losses that eroded confidence sharply. In early March 2023, the collapse of Silicon Valley Bank (SVB) shook global bank sentiment. CS's stock entered freefall and CDS spreads spiked. On 15 March, the Saudi National Bank — CS's largest shareholder — publicly ruled out further financial support, accelerating the liquidity spiral. FINMA and the Swiss National Bank, acting to prevent systemic contagion, engineered an emergency merger with UBS.

Under the merger terms, CS shareholders received 1 UBS share for every 22.48 CS shares held — approximately CHF 0.76 per share, a residual value. AT1 holders received CHF zero. An instrument ranking structurally above equity was extinguished before equity residual value was fully wiped out. This inversion of the conventional loss-absorption hierarchy sent a shock through global AT1 markets; spreads on other European banks' AT1 instruments widened sharply in the weeks that followed as investors repriced jurisdictional risk.

The lessons for investors are lasting. PONV declarations arrive before markets are positioned. Under the Swiss legal framework clearly disclosed in the prospectus, this outcome was legally valid. The high coupon AT1 investors had been earning was compensation for precisely this risk — and that risk materialized. The Credit Suisse episode established conclusively that jurisdictional legal analysis is at least as important as issuer credit analysis when investing in AT1 instruments.