Thanks toph. We now have the other one. But I don't understand...

Thanks toph. We now have the other one. But I don't understand it. Sell at 16c, buy at 16.5c. That's increasing the cost base of their stock or else giving up 0.5c profit. I must have missed something as I don't understand the purpose. That's just throwing money away. Why not just sell if that's what they want? There's enough buyers.