Forex encyclopedia

Margin trading is a trading with borrowed funds. The idea of such a trading is to borrow money from a broker and trade with funds greatly exceeding trader’s own. This pledge is called margin. Margin funds are measured by the currency of deposit (for instance, US dollar). Margin depends on liquidity of a trading instrument (products). The essential part of the margin trading mechanism is to provide a leverage. To calculate margin-based leverage, divide the margin amount by the total value of a transaction. For example, the ratio 1:100 shows that in order you can trade, the balance of your trading account have to be 100 times less than the value of a transaction.

Parabolic SAR is the technical indicator developed by Welles Wilder for analyzing trend movements. The first time it was announced in a famous book “ New Concepts in Technical Trading Systems” published in 1976. SAR stands for as “stop and reverse”. Parabolic SAR is one of a few indicators that signalize about closing of positions. In many respects Parabolic is similar to a moving average with the only difference that SAR can change position against price. Under ascending tendency, the indicator is drawn under prices (candles, bars), under descending tendency it is put above prices. When price crosses Parabolic line, reversal of the indicator takes place.