Briefcase, the Australian investment platform delivering personalised portfolio solutions for advisers, has delivered strong results across three of its multi-asset model portfolios on the Praemium platform for the 12 months to 31 March, 2026.
Its Balanced (12.3%) and Growth (14.7%) models ranked first among comparable multi-asset SMA portfolios available on Praemium and labelled Balanced and Growth respectively, while the High Growth (15.9%) model ranked second, marking the portfolios’ one-year implementation milestone on the platform.
“Australian advisers deserve access to genuinely differentiated investment thinking,” said Josh Persky, Founder and CEO of Briefcase.
“For too long, the model portfolio market has rewarded conformity – strategies built to look like each other rather than to serve clients. These results suggest the industry is ready for a different conversation about how portfolios should be constructed, and what an alternative, unconflicted approach can deliver.”
The Growth model returned 14.7% for the year, outperforming comparable multi-asset SMA portfolios available on Praemium also labelled Growth. Balanced and Growth both ranked first within their respective peer group categories over the full 12-month period.
Over the six months to 31 March, performance remained resilient amid heightened market volatility, including a late-period sell-off linked to geopolitical tensions. During this period, Briefcase was among a smaller number of managers to deliver positive returns, while many comparable portfolios recorded negative outcomes.
“We built this framework to avoid the extremes – not to predict markets, but to understand the odds and construct portfolios that can withstand stress,” said Martyn Wild, Chief Investment Officer at Briefcase.
“The results reflect how a consistent application of our probability philosophy across different market conditions can lead to more resilient and risk-aware outcomes for clients.”
Structural drivers of performance
Briefcase attributes the results to two core elements of its investment approach.
First, a probability-based portfolio construction framework, designed as an alternative to traditional mean-variance optimisation, which aims to better capture risk and opportunity across different market conditions.
Second, an unconstrained investment universe. As an issuer-agnostic manager, Briefcase can access a broad range of ETFs, including exposures such as gold, silver and Nasdaq-listed securities, without the limitations of vertical integration.
The results are consistent with performance across Briefcase’s broader suite of risk-based multi-asset models.
Access to Briefcase Multi-Asset ETF Model portfolios is available to retail clients via SMA issued by Praemium Australia Ltd and wholesale clients via Briefcase MDA on BT Panorama, Netwealth, Bell Direct, nabtrade and other platforms.