For the first time, the prudential watchdog tested both sectors as a single web of connections, not as separate silos. The joint system scraped through the exercise but only with heavy qualifications that highlight how fragile confidence could be under extreme stress.
Regulators at the Australian Prudential Regulation Authority built a worst-in-50-years liquidity shock as the core of the scenario, pushing funding and cash outflows to brutal levels. Banks and super funds were modelled as interlinked institutions, where problems in one part of the system rapidly transmitted to others. The design focused on a whole-of-system response, not just individual balance sheets or capital ratios.
Supervisors said the stress test was structured less as a simple pass-fail exam and more as a diagnostic tool to expose hidden vulnerabilities. Results showed that, even though the system technically survived, several pressure points emerged once the hypothetical shock hit funding markets and asset prices at the same time.
Liquidity buffers in some parts of the network came under intense strain, forcing asset sales and rapid shifts in portfolio positions. Interconnections between banks and super funds amplified those moves, as margin calls, redemptions and collateral demands rippled across the system.
Regulators now see those channels as critical areas to monitor and possibly tighten through future policy changes. Stress test outcomes suggest Australia’s financial plumbing increasingly depends on the smooth functioning of both banking and superannuation sectors together.
Any severe disruption in one is likely to transmit quickly to the other through funding markets and asset holdings. Policy debates now look set to focus on whether existing liquidity rules, crisis tools and supervisory frameworks are sized for a world where the combined system is systemically critical in its own right.
The tension regulators highlighted revolves around how to preserve market discipline without reinforcing the perception that the entire intertwined structure will always be rescued.
