You could be right about a small dip, I don't see it though, most of their value is imaginary speculation. They have 65 billion in assets and they're at 100% production making 30 billion a year right now. There's no way to math that out to being worth over 3 trillion dollars.
Also most of their production in in China and Taiwan, if that war happens the Taiwan factories will be blown up on day one and the Chinese ones will be nationalized in response.