Why? Because you have lost some wealth (i.e. unrealised...

Why? Because you have lost some wealth (i.e. unrealised capital). If the traders are working the market to profit then you can join them by buying at a low value or sit it out. If you think this is a trading play then you do not have to sell but can hold until they have finished their play. If your analysis of the company is sound then sooner or later then you will get your hoped for return.
Unless you can show that the traders have inside knowledge then you have a stool with no legs. Given the movement in AU$ and gold price plus market sentiments then I think you may be left jealous that these guys can outplay you but that is all.
Are you a trader or an investor? If the former then I suggest that you stop moaning and if an investor then check your analysis of the company and decide whether or not it has intrinsic value that you should hold on to.