ICM mystery

Hypothetically- FT 3 handed, BTN has 1bb and shoves with KK, SB has 2bb and rejams with QQ, then BB with 5bb annihilates them all with AA. Finishing places are based on stack sizes then, like BTN comes 3rd, SB 2nd and BB 1st? That would seem logical but that’s how it works? Or it’s dependable on who lost to who?