The rhodium market is transitioning from the sustained deficits of 2023-2025, when Johnson Matthey estimated a cumulative deficit of approximately 125 koz, toward a position of fragile surplus in 2026. This shift reflects the gradual adjustment of autocatalyst demand to the evolving vehicle production mix.
The transition is not a signal of market weakness. The potential surplus is described as fragile by analysts because it depends on continued South African mine production, which faces the same structural challenges affecting other PGM operations: energy shortages, cost inflation, and aging infrastructure.
Rhodium's extreme price volatility is characteristic of its small, concentrated market. The metal has historically experienced 50-80 percent price swings within single years, driven by the combination of inelastic autocatalyst demand and concentrated supply from South Africa and Russia.
The auto sector remains the dominant demand driver, with rhodium essential in three-way catalytic converters for NOx reduction. While EV adoption gradually reduces the addressable market, the replacement cycle for the existing global ICE fleet means catalyst replacement demand will persist for many years.