From Monday morning in Asia to Friday afternoon in New York, the forex market is a 24-hour market, meaning it does not close overnight. This differs from markets such as equities, bonds, and commodities, which all close for a period of time, generally in the New York late afternoon. However, as with most things there are exceptions. Some emerging market currencies closing for a period of time during the trading day. 
Currency futures contracts are contracts specifying a standard volume of a particular currency to be exchanged on a specific settlement date. Thus the currency futures contracts are similar to forward contracts in terms of their obligation, but differ from forward contracts in the way they are traded. In addition, Futures are daily settled removing credit risk that exist in Forwards.[81] They are commonly used by MNCs to hedge their currency positions. In addition they are traded by speculators who hope to capitalize on their expectations of exchange rate movements.

Experts say that forex is a zero-sum game. That means that someone always loses commensurate to someone else’s win — that’s how the game is played. When you add in costs and fees associated with running a forex account and making trades, you enter negative-sum territory. That said, shrewd trading moves can pay out. Substantially. If you have the time and interest required to learn to identify patterns in price fluctuations and execute far-sighted trades, you will make wins on the forex market. That said, the most thoughtful strategy is also liable to bring about loss. Don’t trade more than you can afford to lose.
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.
In 1944, the Bretton Woods Accord was signed, allowing currencies to fluctuate within a range of ±1% from the currency's par exchange rate.[29] In Japan, the Foreign Exchange Bank Law was introduced in 1954. As a result, the Bank of Tokyo became the center of foreign exchange by September 1954. Between 1954 and 1959, Japanese law was changed to allow foreign exchange dealings in many more Western currencies.[30]
You can profit from this! A lot of the major pairs like EURUSD, GBPUSD and USDCHF experience massive movements and specific patterns during this time. In fact, I created a holistic trading strategy for the GBPUSD just based on this one fact. The strategy is called Simple System v6.0 and you can find it in this course. It uses an extremely profitable pattern that I discovered for GBPUSD.
Data Sources: Mecklai Financial Services - 5 Minute delayed currency spot data, EOD currency forward and futures data, reports, deposit rates. Oanda – Currency Spot EOD data for Forex convertor, continent based currency data and historical performance. All times stamps are reflecting IST (Indian Standard Time). By using this site, you agree to the Terms of Service and Privacy Policy.

It should be noted that there is no central marketplace for the Forex market; trading is instead said to be conducted ‘over the counter’; it’s not like stocks where there is a central marketplace with all orders processed like the NYSE. Forex is a product quoted by all the major banks, and not all banks will have the exact same price. Now, the broker platforms take all theses feeds from the different banks and the quotes we see from our broker are an approximate average of them. It’s the broker who is effectively transacting the trade and taking the other side of it…they ‘make the market’ for you. When you buy a currency pair…your broker is selling it to you, not ‘another trader’.

Gold Standard System was formed in 1875. The main idea behind it was that governments guaranteed that a currency would be backed by gold. All the major economic countries defined an amount of currency to an ounce of gold as the value of their currencies in terms of gold and the ratios for these amounts became the exchange rates for these currencies. This marked the first standardized means of currency exchange in history. However, World War I caused a breakdown of the gold standard system as countries sought to pursue economic policies which would not be constrained by the fixed exchange rate system of the Gold Standard.
In the context of a general trading strategy, it is best to trade with trends. If the general trend of the FX market is moving up, you should be cautious and attentive in regards to taking any positions that may rely on the trend moving in the completely opposite direction. A trend can also apply to interest rates, equities, and different yields - and any other market that can be characterised by a movement in volume or price.
There is no unified or centrally cleared market for the majority of trades, and there is very little cross-border regulation. Due to the over-the-counter (OTC) nature of currency markets, there are rather a number of interconnected marketplaces, where different currencies instruments are traded. This implies that there is not a single exchange rate but rather a number of different rates (prices), depending on what bank or market maker is trading, and where it is. In practice, the rates are quite close due to arbitrage. Due to London's dominance in the market, a particular currency's quoted price is usually the London market price. Major trading exchanges include Electronic Broking Services (EBS) and Thomson Reuters Dealing, while major banks also offer trading systems. A joint venture of the Chicago Mercantile Exchange and Reuters, called Fxmarketspace opened in 2007 and aspired but failed to the role of a central market clearing mechanism.[citation needed]

In forex, currencies are quoted in pairs. Let’s take the most popular currency pair as an example, EUR/USD. The first currency (Euro in this case) is called the base currency and the second (USD) is called the quote currency. When you trade a pair you are speculating on whether the base currency (EUR) will strengthen or weaken against the quote currency (USD).
Meanwhile, daily interbank settlements are also a mover of these markets as forex or broker-dealers, such as banks, are amongst the biggest participants in the forex market. Since these dealers interact with each other, this market is referred to as the interbank market. Large corporations, including exporters and importers, will also use the FX market to hedge currency exposure in order to prevent losses due to the fluctuating value of currencies.

All exchange rates are susceptible to political instability and anticipations about the new ruling party. Political upheaval and instability can have a negative impact on a nation's economy. For example, destabilization of coalition governments in Pakistan and Thailand can negatively affect the value of their currencies. Similarly, in a country experiencing financial difficulties, the rise of a political faction that is perceived to be fiscally responsible can have the opposite effect. Also, events in one country in a region may spur positive/negative interest in a neighboring country and, in the process, affect its currency.
The main participants in this market are the larger international banks. Financial centers around the world function as anchors of trading between a wide range of multiple types of buyers and sellers around the clock, with the exception of weekends. Since currencies are always traded in pairs, the foreign exchange market does not set a currency's absolute value but rather determines its relative value by setting the market price of one currency if paid for with another. Ex: US$1 is worth X CAD, or CHF, or JPY, etc.
One unique aspect of this international market is that there is no central marketplace for foreign exchange. Rather, currency trading is conducted electronically over-the-counter (OTC), which means that all transactions occur via computer networks between traders around the world, rather than on one centralized exchange. The market is open 24 hours a day, five and a half days a week, and currencies are traded worldwide in the major financial centers of London, New York, Tokyo, Zurich, Frankfurt, Hong Kong, Singapore, Paris and Sydney - across almost every time zone. This means that when the trading day in the U.S. ends, the forex market begins anew in Tokyo and Hong Kong. As such, the forex market can be extremely active any time of the day, with price quotes changing constantly.