ACER v ACERW stocks

I am relatively new to this and have done some digging on investopedia and Google and am still confused. I understand that warrants are generally cheaper, are sold directly from the company, and have high risk/reward. ACER has gone up considerably in the last few months while ACERW has fallen ~30%. It is my understanding that the two should be linked and that if one rises, the other should rise. I am sure there is something I am missing and would really appreciate if someone could explain this or point me in the right direction.

I am also extremely confused about this too.