Asia‑Pacific banks’ earnings outlook blunted by Iran war, with HSBC and NAB bearing the brunt

As the conflict in Iran continues to generate volatility across commodity markets, foreign‑exchange rates and credit conditions, the region’s largest lenders have been forced to revise their near‑term earnings projections, a development that underscores the persistent mismatch between expansive risk‑taking strategies and the reality of geopolitical shock exposure, particularly for institutions whose balance sheets remain heavily weighted toward Middle‑East‑linked corporate finance.

HSBC Holdings Plc, with its historically deep ties to trade finance and sovereign lending across the Gulf, has disclosed that its expected profit growth for the current fiscal quarter will be curtailed by a combination of higher provision levels, tightened loan‑to‑value ratios on Iranian‑related exposures and an unavoidable escalation in funding costs driven by regional currency depreciation, while National Australia Bank Ltd. has similarly signaled a downward adjustment to its earnings guidance, citing increased default risk among Australian importers dependent on Iranian oil and the bank’s own lagging integration of war‑risk overlays into its credit‑approval workflow.

By contrast, the three major Singapore‑based banks—DBS Group Holdings, Oversea‑Chinese Banking Corp and United Overseas Bank—have been able to maintain more optimistic outlooks, principally because their exposure to Iranian counterparties is limited to a modest proportion of their regional loan book, their risk‑management frameworks already incorporate scenario‑analysis for geopolitical disruptions and, perhaps most importantly, they have benefitted from a comparatively resilient domestic economy that shields core retail earnings from the shockwaves emanating from the Middle East.

The divergent trajectories of these institutions reveal a systemic weakness in the way major lenders across the Asia‑Pacific have historically calibrated their stress‑testing regimes, as the apparent reliance on post‑hoc adjustments after the outbreak of hostilities highlights a procedural inconsistency that permits material exposure to be overlooked during routine portfolio reviews, thereby creating a predictable gap between published risk appetites and the actual concentration of assets vulnerable to geopolitical turbulence.

Ultimately, the episode serves as a reminder that without a coherent, forward‑looking governance structure capable of integrating geopolitical risk into both capital allocation and credit‑policy decisions, even the most internationally diversified banks will continue to experience earnings volatility whenever regional conflicts erupt, a pattern that not only erodes investor confidence but also places regulatory bodies in the unwelcome position of having to retrofit oversight mechanisms after the damage has already manifested.

Published: April 30, 2026