ASX Biggest Losers Today: Cogstate, Immuron and GQG Partners Lead Australian Stock Market Declines (10 December 2025)

The Australian share market is treading water today, but beneath the flat S&P/ASX 200 headline, a cluster of healthcare, speculative miners and financials are taking heavy hits. While gold stocks and other resources names are propping up the index, stocks like Cogstate, Immuron, GQG Partners and a raft of micro‑caps feature prominently on the “biggest losers” board.Market Index