Buying and selling foreign currency to anticipate and capture profitable changes its course. Investor acquires a foreign currency for bargain resale. Since the relation between different currencies is constantly changing, with increasing cost (gain) of foreign currency against the national currency of the investor’s income from foreign assets in terms of domestic currency increases, but the fall cost (weakening) of foreign currency – is reduced.

Purchase and sale of foreign currency by the currency markets. The largest of them – the International Monetary interbank market, which is arranged by agreement of participants in a particular place and at the agreed time. Communication between the participants of this market is supported by telephone, telex and computer networks. With such rapid communication exchange rates, usually the same in different parts of the globe. Information about the exchange rates available in international databases, which are continuously provide a quotation of the leading banks in the world. Daily exchange rate is determined by the results of trading on currency exchanges or OTC markets on the basis of supply and demand of several major ones.

To get some income from foreign currency transactions, the customer must buy foreign currency as cheaply as possible, and sell more.
Using the options and futures held in stock and currency exchanges and may be profitable at price changes for specific types of goods.
Option (option) – Bilateral agreement on the transfer of rights to buy or sell a certain value at a fixed price at a specified date (in Europe) or within a specified period of time (in America).
The owner of an option acquires the right but not the obligation, to buy, sell certain assets.

There are three types of options:
1. purchase option (coll);
2. option to sell (put);
3. straddle (straddle).