Derivatives trading is considered economical because of the lower brokerage. However, additional costs such as stamp duty, statutory charges, Goods and Services Tax (GST), and Securities Transaction Tax (STT) can apply to your trading account. The majority of cost hike comes from the frequency of trade with quick, multiple transactions in a short time, multiplying the cost of your overall trading. It is advisable to keep a check on the number of transactions against the gains you are making.