The best performers of the session on the S&P/ASX 200 were IGO Ltd (ASX:IGO), which rose 7.84% or 0.54 points to trade at 7.43 at the close. Meanwhile, Pilbara Minerals Ltd (ASX:PLS) added 7.51% or 0.26 points to end at 3.72 and Omni Bridgeway Ltd (ASX:OBL) was up 7.28% or 0.11 points to 1.62 in late trade.