They are buying/bidding the price any ROCK:
Some companies have surprised why their share had activities they can not account materially???

Galaway Gold GLW announcement: The Company announces that it is not aware of any material, undisclosed corporate developments and has no material change to report at this time. The Company will keep the market informed as required.

(“Defiance” or the “Company”) wishes to confirm that the Company’s management is unaware of any material change in the Company’s operations that would account for the recent increase in market activity.

Speculation is here.