For my situation I would disagree overall as it is a net negative ... but the good is the additional liquidity on the US markets & increased competition rewards higher performers with better multiples.
The FX is mute point. As an investor if I want to make money off of depreciating AUD there are easier ways. You wouldn't buy stock in a company planning to shift its listing exchange to another country. Also if I were an investor wanting to own US Corp stocks I can simply go ahead and do that directly.
For me it works out as net negative (and I think for most individuals and funds). Lonestar was the biggest holding for me that delisted and when onto US exchange. It was in SMSF. And it is a pain. I will sell before it happens no matter what. I have non-SMSF personal account (with IB) specifically for US stocks and that is easiest thing in the world ... cheaper and simple
I've also sent message to IR at SEA re this .... want to be on the front foot for whatever their planned timeframe.
SEA Price at posting:
35.5¢ Sentiment: Buy Disclosure: Held