The Unchallenged Premise: When Holding Company Boards Forget to Ask Whether They Create Value at All

There is a question that sits at the very foundation of every corporate group, and which the boards of most British holding companies have never seriously attempted to answer. It is not a question about performance, or governance, or capital structure. It is a more fundamental question than any of those, and precisely because of its fundamentality, it tends to go unasked.

The question is this: does the group actually create value by existing?

Not in theory. Not according to the investment thesis that justified the original formation or acquisition. But in practice, today, with the portfolio as currently constituted — does the act of holding these businesses together under common ownership generate returns that the businesses could not generate independently? And if the honest answer is uncertain, or worse, negative, what does that imply for the legitimacy of the board's stewardship?

The Assumption Beneath the Architecture

Every holding company structure rests upon an implicit value creation thesis. The thesis may be articulated — in investor communications, in strategic planning documents, in the chairman's annual statement — but it is rarely subjected to the kind of rigorous, ongoing scrutiny that its centrality to the group's purpose demands.

The most common versions of this thesis involve some combination of the following claims: that central ownership enables superior capital allocation across the portfolio; that shared services and group functions generate economies of scale unavailable to standalone businesses; that the group's brand or reputation confers advantages on its subsidiaries; or that central leadership can identify and develop synergies that individual businesses would miss.

Each of these claims may be valid. Each of them may also be false, or true only under conditions that no longer obtain. The problem is that British holding company boards rarely create the mechanisms — or the cultural permission — to find out which is actually the case.

The Accountability Vacuum

In most corporate governance frameworks, there is a clear accountability structure for the performance of individual businesses. Subsidiary CEOs are held responsible for their results. Group executives are held responsible for portfolio performance against targets. But who is held responsible for the validity of the group's fundamental value creation logic?

The answer, in most British holding companies, is no one — at least not in any formal, systematic sense. The board collectively endorses the group's strategic direction, but the question of whether the holding company structure itself is the right vehicle for delivering that direction is rarely placed explicitly on the board agenda. It is treated as a settled matter, decided once and not revisited.

This creates an accountability vacuum at the most consequential level of the organisation. Boards scrutinise execution relentlessly — whether initiatives are delivered on time, whether margins are maintained, whether governance obligations are met. They scrutinise strategy with somewhat less rigour — whether the group is pursuing the right opportunities, whether its competitive positioning is sound. But they almost never scrutinise the premise beneath the strategy: whether the structural form of the organisation is itself value-creating or value-destroying.

The Conglomerate Discount, Revisited

Capital markets have long expressed a view on this question, even when boards have not. The conglomerate discount — the tendency of diversified corporate groups to trade at a valuation below the sum of their constituent parts — has been a persistent feature of financial markets for decades. Academic research into the phenomenon is extensive, and its findings are broadly consistent: diversified groups frequently destroy value relative to the counterfactual of focused, standalone businesses.

This is not a universal finding, and there are well-documented cases of holding companies that genuinely create value through superior capital allocation, talent development, or strategic guidance. But the average finding is sufficiently damning to warrant sustained board-level engagement with the question of whether any particular group belongs in the value-creating or value-destroying camp.

Few British holding company boards have this conversation in any structured way. The conglomerate discount is acknowledged as a market phenomenon, occasionally referenced in investor relations contexts, and then set aside in favour of more operational concerns. The possibility that the discount reflects a genuine assessment of value destruction — rather than a market misunderstanding to be corrected through better communication — is rarely entertained.

Why the Question Stays Unasked

The reasons for this persistent avoidance are not difficult to identify, though they are rarely acknowledged openly. The most significant is institutional self-interest. The holding company board exists because the holding company exists. Questioning the value creation logic of the structure is, at some level, questioning the legitimacy of the board's own position. That is an uncomfortable line of inquiry for any group of individuals to pursue voluntarily.

There is also the matter of sunk costs — both financial and reputational. A holding company that has spent decades building its portfolio, acquiring businesses, and developing its group infrastructure has enormous invested interest in the proposition that this investment was sound. Acknowledging that the structural premise may be flawed requires a willingness to confront the possibility that decades of strategic effort have been, at least in part, misdirected.

Finally, there is the absence of an external forcing mechanism. Unlike operational performance failures, which manifest in financial results and trigger board-level response, failures of structural logic are slow to surface and easy to attribute to other causes. When a holding company underperforms, the diagnosis is typically operational — management execution, market conditions, competitive dynamics. The structural diagnosis — that the group configuration itself is suppressing value — requires a more searching analysis that boards are rarely motivated to commission.

The Governance Imperative

The argument here is not that all holding companies are value-destroying, or that the corporate group structure is inherently flawed. There are holding companies operating in the United Kingdom today that genuinely earn their structural premium — that allocate capital more effectively, develop management talent more systematically, and create genuine synergies across their portfolios.

The argument is that every holding company board has an obligation to know, with reasonable confidence, which category it occupies — and to revisit that assessment regularly as the portfolio, the market, and the competitive environment evolve.

This requires creating explicit governance mechanisms for interrogating the value creation thesis: periodic, structured reviews that go beyond operational performance to examine whether the structural premise of the group remains valid. It requires commissioning independent analysis rather than relying on internally generated assessments that carry obvious incentive biases. And it requires cultivating a board culture in which the most fundamental questions about the group's purpose and structure are treated as legitimate subjects for rigorous debate rather than settled matters beyond challenge.

Groups that build this discipline into their governance will occasionally discover uncomfortable truths about the value they are creating — or failing to create. That discomfort is the price of honest stewardship. The alternative — perpetuating a structural premise that was never properly examined — is a cost that ultimately falls not on the board, but on the shareholders who trusted it to ask the hard questions.