Open an investment account in the USA - it's fairly straightforward. I don't know your tax system in france, but you can invest in the US as an individual or an entity, probably worth talking w/ a tax attorney about how to do it - it's certainly done by others.
Open an ETRADE Securities account if I'm neither a legal resident of the U.S. nor a U.S. citizen
You won't be able to open a brokerage account online if you are not a legal resident or citizen of the United States because we will need some additional documentation from you. If you're not sure if you're a legal resident, see the Help topic Determine my residency status.
Request a brokerage account application by mail, or download it from our Forms & Applications page.
Download a Form W-8BEN.
Complete sections 1 through 6 of the application (the section on options trading isn't required).
Send your completed application and Form W-8BEN, along with your initial deposit and any supporting documentation, to us at:
By regular U.S. mail
ETRADE Securities LLC
PO Box 484
Jersey City, NJ 07303 - 0484
By overnight mail
E*TRADE Securities LLC
Harborside Financial Center
501 Plaza 2
34 Exchange Place
Jersey City, NJ 07311
1-800-ETRADE-1