Foreign exchange trading is a high-risk transaction, and its risk is even higher than that of stock trading. Because the changes in the international foreign exchange market are very drastic, and at the same time, the general foreign exchange transaction is a margin model, which means it is a leveraged financial transaction. At present, the leverage ratio of general foreign exchange transactions is between 10 times and 100 times. That is to say, if the exchange rate of the ruble against the US dollar fluctuates by 1%, the impact on investors' profits and losses will be between 10% and even 100%.

Ruble, also known as Russian ruble, symbol: _ (original symbol Rbs. Rbl)。 Currency code: RUB. Usage: Russia and Abkhazia and South Ossetia, which declared their independence by themselves. Inflation rate: 7%. Russian ruble (рубл) is the standard monetary unit in Russia. The token is Gaby(копекка). 1 ruble = 100 kopecks. The denominations of banknotes are 5 10, 50, 100, 200, 500, 1000, 2000, 5000 rubles, and 50, 10, 5, 1 Gaby coins respectively.