Nadex is U.S. based and I believe owned by IG markets but they are totally U.S. based and regulated.
IG weekend spreads: have I made a mistake? Spreads 20+! 4 replies
Variable Spreads and Average Spreads 0 replies
NADEX 2 hour Binary Option Tip 7 replies
IG markets / NADEX 5 replies
Nadex 4 replies