Third-party funding is increasingly shaping the strategic landscape of post-M&A arbitration, according to discussions at the OPEN de Arbitraje 2026 conference held in Madrid. Practitioners and arbitrators examined how external capital is altering the calculus for claimants pursuing disputes that arise from share purchase agreements, earn-out clauses, and post-closing indemnity claims.

As reported by Iberian Lawyer, panelists framed third-party funding as a viable alternative for parties navigating the often-protracted and capital-intensive nature of M&A arbitrations. The discussion emphasized that funding agreements are no longer reserved for distressed claimants but are increasingly deployed by well-capitalized parties seeking to manage risk, free up balance sheet capacity, or align outside investors with the success of a claim.

Spain has emerged as one of Europe's more receptive jurisdictions for funded arbitration, with both the Spanish Court of Arbitration and the Madrid International Arbitration Center requiring disclosure of third-party funding arrangements. That regulatory clarity has helped institutional funders deepen their involvement in the Iberian market while giving counterparties greater visibility into the financing of claims.

The panel highlighted that post-M&A arbitration presents particular structural features that make funding attractive: claims tend to be discrete, liability-driven, and supported by extensive transactional documentation, all of which improve underwriting predictability. As funders refine their models for valuing M&A disputes, the conference signaled that capital is poised to play a more visible role in shaping which claims are pursued and how they are resolved.

Litigation funding played a decisive role in a landmark New Zealand High Court ruling that has left ANZ Bank New Zealand facing potential liability of up to NZ$125 million. The class action, brought on behalf of approximately 17,000 borrowers, would not have been viable without backing from funders LPF Group and CASL, which financed the proceedings against the country's largest bank.

As reported by LawFuel, Justice Geoffrey Venning delivered summary judgment against ANZ on May 4, 2026, finding the bank in breach of disclosure obligations under the Credit Contracts and Consumer Finance Act 2003 (CCCFA). The case turned on a coding error in ANZ's loan systems that affected variation letters issued between June 2015 and May 2016. Although the bank argued the underpayments averaged just NZ$2 per customer per month, the court held that "technical errors in disclosure, no matter how small the financial impact, trigger automatic statutory penalties."

ANZ was ordered to refund the lead plaintiffs NZ$32,728.42, establishing a benchmark that, when extrapolated across the class, produces the NZ$125 million exposure figure. The judgment rejected ANZ's "no harm" defense, confirming that Section 22 of the CCCFA imposes strict liability regardless of actual financial harm.

ANZ chief executive Antonia Watson described the consequences as "disproportionate." The bank reported after-tax New Zealand profit of roughly NZ$1.4 billion last year. The decision underscores how funded class actions are reshaping consumer redress in jurisdictions where individual claims would be uneconomic to pursue.