Part 3 - Private banks vs. investment platforms, and who actually wins the Belgian investor.
Belgian investors no longer have to choose between doing it themselves and handing everything over to a private bank. Digital investment platforms have reset expectations around cost, transparency, and control, while private banks still hold an edge where wealth gets complex. As the two models increasingly converge, the real battle is shifting from who manages the money to who can prove they add the most value.
Private Banks vs. Investment Platforms: Who Wins the Belgian Investor?
Part 2 looked at how the incoming generation of wealth holders is changing what clients expect. This part looks at the second force reshaping the market: what digital platforms have already done to the cost of meeting those expectations.
For decades, Belgian private banks won on relationship-driven advisory, discretionary mandates, and a deep well of institutional trust. Digital-first investment platforms haven't displaced that model, but they have permanently reset what investors consider normal on cost, access, and control. The question is no longer whether the two compete. They clearly do. The real question is how far each model has to evolve before the line between them disappears.
What platforms changed
Where private banking has traditionally layered advisory fees, custody fees, and product costs, platforms pushed the industry toward radical transparency and cost compression instead. Retail and affluent investors increasingly expect fractional trading, near-zero execution costs, and real-time control over their own portfolios without an intermediary in the loop. Saxo Bank has built a global multi-asset trading gateway around exactly this expectation, and Bolero has done the same for a mainstream Belgian audience, bringing self-directed investing into an environment that used to require a private banking relationship to access at all. The shift isn't only about cost. It reflects a genuine behavioral change: investors increasingly want to make the allocation decision themselves, not delegate it.
What private banks still win on
None of this makes private banks obsolete. Their value holds up strongest exactly where platforms remain structurally limited: wealth structuring, estate planning and succession, access to private markets and bespoke solutions, and human advisory in moments that are volatile or emotionally loaded rather than routine. For Belgian high-net-worth families navigating intergenerational wealth or cross-border complexity, that human and institutional layer still does real work. But it's under growing pressure to justify itself more explicitly than "trust us, this is what private banking includes."
Even incumbent universal banks are hedging their bets here. BNP Paribas Fortis, alongside its full advisory offering, has long maintained an execution-only service for clients who want to place their own orders without an advisory layer attached, a signal that self-directed investing isn't confined to fintechs and brokers, even inside institutions built around relationship banking.
Convergence, not displacement
The more important trend isn't platforms displacing private banks or vice versa, it's convergence. Private banks are digitizing onboarding and trading, layering simplified execution-only tiers alongside their advisory mandates, and embedding model portfolios and robo-advisory tools into discretionary frameworks. Platforms, in turn, are adding thematic portfolios, automated rebalancing, and hybrid human-digital support, moving up the value chain toward what used to be advisory territory. The result is a gradual merge into hybrid wealth ecosystems, where the same client splits their assets across models depending on complexity, liquidity, and how involved they want to be.
The pressure point private banks can't avoid
If a client can buy a globally diversified ETF portfolio instantly, at minimal cost, with full transparency-, and increasingly, they can, private banks have to answer clearly what clients are paying for beyond execution. That forces a real strategic choice: compete on cost and digitization and accept margin compression, focus on high-end advisory and illiquid or private asset access, or reposition entirely as a holistic wealth orchestrator rather than an investment intermediary. Many institutions are still trying to run all three at once, which dilutes positioning and confuses clients about what they're actually buying.
The Belgian investor isn't going to fully switch to one model. Wealth management is settling into a layered structure instead: platforms for execution and autonomy, private banks for structuring and advice, and hybrid models bridging the two. The edge won't go to whoever defends the old model hardest, it'll go to whoever adapts fastest to a client questioning every layer of cost and every layer of intermediation.
That question, how do you become a wealth orchestrator rather than just a product provider, has a concrete operational answer that Belgian private banks are already converging on. Part 4 looks at it directly.
