Currency are very efficient risk management instruments and you can derive the below benefits:
You can protect your foreign exchange exposure in business and hedge potential losses by taking appropriate positions in the same. For e.g. If you are an importer, and have USD payments to make at a future date, you can hedge your foreign exchange exposure by buying USDINR and fixing your pay out rate today. You would hedge if you were of the view that USDINR was going to depreciate. Similarly it would give hedging opportunities to Exporters to hedge their future receivables, Borrowers to hedge foreign currency (FCY) loans for interest and principal payments, Resident Indians, who can hedge their offshore investments.
You can speculate on the short term movement of the markets by using Currency Futures. For e.g. If you expect oil prices to rise and impact India’s import bill, you would buy USDINR in expectation that the INR would depreciate. Alternatively if you believed that strong exports from the IT sector, combined with strong FII flows will translate to INR appreciation you would sell USDINR.
You can make profits by taking advantage of the exchange rates of the currency in different markets and different exchanges.
You can trade in the currency derivatives by just paying a % value called the margin amount instead of the full traded value.