Market Maker Broker
A broker that takes the opposite side of your trade. Profits when you lose.
Conflict of interest by design - but regulated market makers in tier-1 jurisdictions (UK, Australia, EU) are generally fine. Unregulated offshore market makers are where retail gets stop-hunted.
Learn to actually use Market Maker Broker.
Definitions are the easy part. The free first five modules put this on a real chart and make you do the work. No card required.