probability of going bankrupt than a high-capital player. The retail trader always pays the bid/ask spread which makes their odds of winning less than those of a fair game. Additional costs may include margin interest or, if a spot position is kept open for more than one day, the trade may be "resettled" each day, each time costing the full bid/ask spread. In some variations of forex trading, the customers do not obtain normal fungible futures, but instead make a contract with some named company. Even if the company claims to act as their "forex dealer", it is financially interested in making the retail customer lose money. The contract is directly between the customer and the pseudo-dealer, so it is an off-exchange one; it cannot be normally registered and traded on futures exchanges. Although it is possible for a few experts to successfully arbitrage the market for an unusually large return, this does not mean that a larger number could earn the same returns even given the same tools, techniques, and data sources. This is because the arbitrages are essentially drawn from a pool of finite size; although information about how to capture arbitrages is a nonrival good, the arbitrages themselves are a rival good. In analogy: the total amount of buried treasure on an island is the same, regardless of how many treasure hunters have bought copies of the treasure map. High leverage By offering high leverage, some market makers encourage traders to trade extremely large positions. This increases the trading volume cleared by the market maker and increases their profit, but increases the risk that the trader will receive a margin call. While professional currency dealers such as banks and hedge funds tend to use no more than 10:1 leverage, retail clients may be offered leverage up to 1000:1. Fraud by country To aid with transparency, some regulatory authorities openly publish the following: list of regulated companies/firms, warnings to regulated companies, cases opened against regulated companies, fines levied to regulated companies, revocation of companies license as well as general news announcements. United Kingdom The Financial Conduct Authority (FCA) website lists guides to aid with avoiding fraud/scams as well as public list of warnings recorded by the FCA. Official FCA Investment Firm Warning List Online guide on how to avoid scams FCA Guide on how to report a scam FCA Investment Scam support website FCA News on Investment Firms