Selfwealth have starting dropping tidbits from their official reddit account about their US share trading account when answering questions.
Here's what they've hinted at so far.
You'll need to apply for a US trading account
you'll get a USD cash account which you need to transfer from your AUD account
$9.50 USD flat-fee trades
FX 60 bps
https://old.reddit.com/r/ausstocks/comments/i7lvne/swf_good_…
What do you guys think so far?
Update:11/9/2020
Selfwealth have begun officially promoting the service as coming soon on their website.
https://trade.selfwealth.com.au/us-share-trading
eToro claim $0 and 0.5%
IG claim $0 and 0.7%
If there's no catch, then eToro sounds cheapest.
Though I already like SelfWealth for ASX, so I'd probably rather not sign up for eToro anyway.