Commercial collaborations often begin with optimism. Businesses exchange ideas, share proprietary strategies, and explore joint ventures in the hope of building something valuable together. But what happens when the relationship breaks down? Can one party simply take what it has learned and launch a competing business?
The recent English Court of Appeal decision in Illiquidx Limited v Altana Wealth & Others [2026] EWCA Civ 874 provides a powerful reminder that confidential commercial know-how remains protected, even where parts of that know-how are derived from publicly available information.
The Background
Illiquidx, a specialist advisory firm focused on illiquid investments, developed a sophisticated investment strategy centered on distressed Venezuelan sovereign debt. Following the imposition of U.S. sanctions, the market for Venezuelan debt became highly distorted, creating opportunities for non-U.S. investors willing to navigate a complex regulatory environment.
To capitalize on this opportunity, Illiquidx entered into a joint venture with Altana Wealth and Brevent Advisory to establish a dedicated investment fund. As is common in commercial partnerships, the parties executed a comprehensive Non-Disclosure Agreement (NDA) before exchanging commercially sensitive information.
The proposed venture never materialized.
Shortly afterward, however, Altana launched its own investment fund targeting the same market opportunity, prompting Illiquidx to commence proceedings for breach of confidence and misuse of confidential information.
The Central Question
The appeal turned on a deceptively simple question:
Can information still be confidential if much of its underlying content is publicly available?
Altana argued that the information it used was already in the public domain because the sanctions regime, the relevant sovereign bonds, and many of the underlying legal and commercial facts were publicly accessible.
The Court of Appeal rejected that argument.
Public Information Is Not the Same as Confidential Know-How
One of the most significant aspects of the judgment is the Court’s clear distinction between publicly available information and commercially valuable confidential know-how.
While individual facts may be publicly accessible, a business may invest significant expertise in:
- identifying commercial opportunities;
- analyzing regulatory frameworks;
- developing transaction structures;
- designing investment strategies; and
- integrating disparate pieces of information into a commercially valuable product or business model.
That compilation can itself constitute confidential information deserving legal protection.
In other words, confidentiality does not disappear simply because someone could theoretically discover the underlying facts through independent research.
Commercial Strategy Can Be Intellectual Property
The Court recognized that Illiquidx had done much more than identify publicly available information.
It had developed an integrated commercial strategy to establish a sanctions-compliant investment fund, supported by proprietary analysis, fund structures, recovery strategies, and operational know-how. These materials fell squarely within the broad confidentiality provisions contained in the parties’ NDA.
This reinforces an important principle for businesses across industries: intellectual capital is not limited to patents or copyrights. Commercial strategy, business methodology, transaction design, and proprietary market analysis can all represent valuable business assets that deserve contractual protection.
Confidential Marketing Does Not Destroy Confidentiality
Businesses frequently share pitch decks, investment memoranda, presentations, and financial models with prospective investors or strategic partners.
A common concern is whether doing so destroys confidentiality.
The Court confirmed that it does not.
Illiquidx had circulated marketing materials to selected investors under confidential circumstances. Those materials remained protected because they were distributed on a limited basis, clearly marked as confidential, and never intended for unrestricted public circulation or competitors.
This aspect of the decision provides welcome reassurance for companies raising capital or pursuing strategic partnerships.
Why NDAs Matter
Perhaps the most important commercial lesson from the case is the value of a carefully drafted NDA.
The agreement between the parties defined confidential information broadly, extending beyond traditional trade secrets to include ideas, concepts, transaction structures, analyses, and investment opportunities.
When the relationship ended, the NDA prevented the parties from using that confidential information to compete against Illiquidx.
Without those contractual protections, the outcome may have been far less certain.
Practical Lessons for Businesses
The decision offers several practical takeaways for founders, investors, financial institutions, technology companies, and professional service firms:
- Use robust NDAs before sharing commercially sensitive information.
- Clearly define confidential information to include commercial strategies, concepts, business models, analyses, and know-how.
- Mark confidential documents appropriately and restrict their circulation.
- Keep detailed records of what information is shared and when.
- Remember that combining publicly available information into a unique commercial framework can itself create protectable confidential information.
- Do not assume that the collapse of a proposed transaction gives parties freedom to reuse information obtained during negotiations.
In Sum
The Court of Appeal’s decision serves as an important reminder that modern businesses derive much of their value not from secret facts alone, but from the insight, expertise, and commercial judgment used to organize those facts into profitable opportunities.
For businesses engaging in joint ventures, fundraising, strategic partnerships, or commercial negotiations, confidentiality agreements should not be viewed as routine paperwork. Properly drafted and carefully enforced, they can provide powerful protection for the ideas and strategies that often represent a company’s most valuable assets.
As commercial relationships become increasingly collaborative and knowledge-driven, Illiquidx v Altana Wealth reinforces a simple but critical principle: commercial ingenuity deserves legal protection, even when built upon publicly available information.