A system of free-floating currencies eventually materialized and is the modern international system of currencies that has allowed the forex market to flourish into the behemoth that it has become. With no stable price mechanism (i.e., gold), national currencies consistently fluctuate in value relative to each other, creating ideal opportunities for major market participants to profit and hedge risk on the spread between currencies.
There are two main types of retail FX brokers offering the opportunity for speculative currency trading: brokers and dealers or market makers. Brokers serve as an agent of the customer in the broader FX market, by seeking the best price in the market for a retail order and dealing on behalf of the retail customer. They charge a commission or "mark-up" in addition to the price obtained in the market. Dealers or market makers, by contrast, typically act as principals in the transaction versus the retail customer, and quote a price they are willing to deal at.
The profit you made on the above theoretical trade depends on how much of the currency you purchased. If you bought 1,000 units (called a micro lot) each pip is worth $0.10, so you would calculate your profit as (50 pips * $0.10) = $5 for a 50 pip gain. If you bought a 10,000 unit (mini lot), then each pip is worth $1, so your profit ends up being $50. If you bought a 100,000 unit (standard lot) each pip is worth $10, so your profit is $500. This assumes you have a USD trading account.
All forex trades involve two currencies because you're betting on the value of a currency against another. Think of EUR/USD, the most-traded currency pair in the world. EUR, the first currency in the pair, is the base, and USD, the second, is the counter. When you see a price quoted on your platform, that price is how much one euro is worth in US dollars. You always see two prices because one is the buy price and one is the sell. The difference between the two is the spread. When you click buy or sell, you are buying or selling the first currency in the pair.

We gathered a list of 65 forex trading brokers and narrowed it down to the best five by analyzing research features, customizability options, and trading platforms. While introductory incentives (special offers, free demos, referral programs) can make brokerages attractive for the short term, we looked for standard practices that keep you happily trading for the long term. Responsive client support, for example, earned a company more points than first-time perks.
Hedge funds – Somewhere around 70 to 90% of all foreign exchange transactions are speculative in nature. This means, the person or institutions that bought or sold the currency has no plan of actually taking delivery of the currency; instead, the transaction was executed with sole intention of speculating on the price movement of that particular currency. Retail speculators (you and I) are small cheese compared to the big hedge funds that control and speculate with billions of dollars of equity each day in the currency markets.
Both types of contracts are binding and are typically settled for cash for the exchange in question upon expiry, although contracts can also be bought and sold before they expire. The forwards and futures markets can offer protection against risk when trading currencies. Usually, big international corporations use these markets in order to hedge against future exchange rate fluctuations, but speculators take part in these markets as well.