How Discretionary Managers Compete When MPS Becomes a Commodity

Modern investment infrastructure for discretionary managers is no longer a back-office concern. It’s the layer the firm’s growth runs on. 

Discretionary management has always been a portfolio business. It’s now a distribution business too, and that shift is what the rest of the operating model has to keep up with. The model portfolio service (MPS) category has scaled faster than any other segment of the wealth industry; with that growth, the strategic question for discretionary fund managers (DFMs) and MPS providers has migrated. It used to be “how do we run the portfolio.” It’s now “how do we run the distribution at the same cost basis as the portfolio.” This report addresses what that shift means for the infrastructure underneath the business. 

When performance stops differentiating 

The market is growing, concentrating, and commoditising at the same time. Each pressure pushes in the same direction. 

NextWealth’s December 2025 data shows discretionary MPS assets reached £190bn at the end of Q3 2025, up 32% year on year. Growth on that scale would normally be a comfortable position for any product category. The complication is what’s happening underneath the headline. The top two providers, Quilter WealthSelect and Tatton, now control 25% of market assets between them. The top five control 42%. Concentration is accelerating, which means most providers below the top tier are competing for a share of growth that is increasingly captured at the top. 

Fee compression has been the visible symptom. The asset-weighted average total cost paid by the end client (MPS fee plus underlying OCF) fell from approximately 1% in 2021 to 0.54% by 2024, a roughly 50% drop in three years. Recent NextWealth data shows that compression has begun to stabilise, with total costs flat over the last six months. The underlying force has not gone away. Some providers now offer MPS at headline rates as low as 10 basis points, which sets a floor on what most others can charge without going out of business. 

Performance differentiation, the traditional answer to fee pressure, has limits. Across a tightly defined risk band, the dispersion between competing model portfolios narrows. Add fee compression and the residual difference at the client level is often in single basis points. That isn’t a sustainable basis for differentiation, particularly in a market where the typical adviser is using 1.7 DFMs (up from 1.3 in 2024 but still concentrated) and where switching is increasingly fluid. 

The strategic implication is uncomfortable. If portfolio performance, fee level, and risk band positioning all converge across providers, the differentiator has to come from outside the portfolio itself. For most successful providers, that “outside” is the operating model: how efficiently the firm runs the portfolio, how cleanly it integrates with adviser workflows, how much of the value chain it controls, and how visible it is at the end-client layer. 

Renting the route to market 

DFMs distribute through platforms they don’t own. The cost of that arrangement is everywhere in the operating model. 

The majority of MPS assets sit on adviser platforms. These platforms are the route to market: they hold the client wrappers, run the dealing infrastructure, distribute the manager’s portfolios, and own the interface the adviser sees. The DFM operates at one remove from the end client, and at one remove from the adviser too, mediated by what the platform shows on its screens and through its data feeds. 

This has three practical consequences that don’t appear on the P&L as a separate cost line but shape the economics of every DFM in the market. 

First, the platform sits inside the value chain. Platform fees are charged separately from the DFM’s MPS fee, but they sit in the same total cost number the client sees. When fee compression accelerates, the DFM’s margin tends to compress faster than the platform’s because the DFM has less control over the end-client view of cost. 

Second, data flows are filtered. The DFM has visibility into platform-reported holdings and flows, but not into the adviser’s full client conversation or the granular behaviour of underlying clients. Marketing, retention work, and proposition development are conducted on data the DFM doesn’t fully own. 

Third, distribution decisions are made by counterparties. Whether a DFM’s MPS appears prominently in an adviser’s platform interface, whether it’s pre-selected in default workflows, whether the platform’s research tools rate it favourably, all depend on relationships and arrangements with the platform. The DFM’s growth, in part, depends on the priorities of organisations whose interests are not aligned by default. 

None of this is news to anyone running a DFM. What has changed is that the cumulative effect of these dependencies is now large enough to matter strategically, particularly as the market concentrates at the top. The largest providers have invested in proprietary distribution and direct adviser relationships specifically to reduce their platform dependency. Mid-sized and smaller providers face a choice: continue renting the route to market on terms they don’t control or invest in the infrastructure that lets them operate the route themselves. 

From wholesaler to operator 

The architectural shift is from being a manager whose product is distributed through third parties to being an operator that owns the layer those third parties run on. 

The infrastructure pattern emerging across better-positioned DFMs has three properties. 

The first is end-to-end operational ownership. The firm runs the investment process, the dealing infrastructure, the data layer, and the client reporting on systems it controls. Custody and execution remain outsourced to institutional providers, but the orchestration and the client-facing layer stay inside the firm. The platform becomes one distribution channel among several rather than the only channel. 

The second is direct data ownership over the client and adviser relationship. Even where the adviser remains the intermediary, the DFM holds its own clean record of which clients are in which portfolios, what their flows look like, and how their behaviour is changing. The data is not waiting on platform feeds or quarterly extracts. That changes what the firm can do on retention, on proposition design, and on adviser support. 

The third is selective platform interoperability. The infrastructure connects to the existing platform estate without depending on it. The DFM can be distributed through any platform an adviser uses, but the data, the branding, the reporting, and the underlying margin economics stay with the manager. Platform-led distribution becomes optional rather than structural. 

Firms that have moved in this direction report two outcomes. They retain more margin per pound of AUM because the platform layer is no longer the dominant cost extractor in the value chain. They have more options on differentiation because they own the client-facing experience and the data behind it, both of which can be developed independently of platform constraints.