RE:spike in Sp A major is unlikely to take them out at this time.
increased liquidity would help but the reason for the share price spike probably has more to do with :
1) at expected 2020 production and commodity prices Aura was trading at a ~50% free cash flow yield and now at $45 that's closer to a 25% free cash flow yield; and
2) Brito and his buddies are aware of that and control +75% of the shares so there's minimal liquidity and no sellers.
with a bit of liquidity and positive guidance on operations and future mine development, I don't see why this couldn't be +$100 per share