Bloke it is not an error because it happens a little to often. It is simply left over shorts which were not covered on the day they were sold. Then covered the next day.
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