Yes, that would explain rude dump ...
Two large blocks after 4 PM could well be two gold index funds adjusting portfolio weightings to match new index list.
GBG has one by one placed the building blocks necessary for profitable mining in two locations (Carlin Trend and Witwatersrand), while acquiring interest in four new prospects (two in Tanzania, Alaska and Russia's Kuril Islands north of Japan). With the acquisition of the mothballed mill in Nevada, and renegotiation of temporary milling by NEM, the cash flow will be growing rapidly in the next few years.
Regards,
Bob