It could be that some consolidation before a big run in the afternoon. I have noticed similar trading pattern lately, on news so profit taking occurs before a lift off.
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks