Limitations of Exchange-Traded Currency Derivatives for Hedgers

Exchange‑traded currency derivatives, such as currency futures and options listed on recognised stock exchanges, provide a transparent and standardized platform for Indian corporates, exporters, importers and distributors to hedge foreign exchange exposure.

Because contracts are centrally cleared by the clearing corporation, counter‑party risk is minimal compared with over‑the‑counter (OTC) contracts. This feature is highlighted in the NISM syllabus and is frequently tested.

However, the very standardisation that brings safety also introduces several limitations that can reduce the precision of a hedge. The exam often asks candidates to spot these gaps and suggest corrective actions.

• Standard contract sizes may not match the exact exposure.
• Liquidity varies across currency pairs and contract expiries.

Liquidity refers to the ease with which a trader can enter or exit a position without causing a material price change. In Indian exchanges, major pairs like USD/INR and EUR/INR enjoy deep order books, but exotic pairs (e.g., GBP/INR, JPY/INR) often have thin volumes.

Thin liquidity leads to wider bid‑ask spreads, higher transaction costs, and slippage during order execution. For a hedger, this means the realised hedge may be less effective than the theoretical one taught in textbooks.

Exam tip: The NISM question bank frequently presents a scenario where an exporter wants to hedge a small USD receipt using a USD/INR future that has low open interest. The correct answer highlights liquidity‑related slippage as a limitation.

Basis risk arises when the spot price movement of the underlying currency does not perfectly track the futures price. The difference between the spot rate (S) and the futures price (F) at expiry is called the basis.

Because futures contracts are marked‑to‑market daily, any divergence between S and F before expiry can create an unexpected profit or loss, reducing the hedge's effectiveness. This is especially pronounced for contracts with longer tenors where the forward curve may be steep.

For the NISM exam, you may be asked to calculate the hedge ratio to minimise basis risk, or to explain why a hedge might still leave residual exposure despite using ETCDs.

Standardised contract sizes on Indian exchanges are typically 100,000 USD, 75,000 EUR, etc. When a hedger's exposure does not align with these multiples, they must either over‑hedge (take a larger position) or under‑hedge (take a smaller position).

Over‑hedging creates a net short or long position after the underlying transaction settles, exposing the firm to opposite‑direction risk. Under‑hedging leaves residual exposure that the firm intended to eliminate.

The NISM exam may present a case where an importer has a payable of 45,000 EUR. Using a 75,000 EUR futures contract forces the importer to either hedge 45,000 EUR (under‑hedge) or take a full contract and unwind the excess later, incurring transaction costs.

SEBI imposes position limits on individual participants to curb market manipulation. For currency futures, the limit is generally a percentage of the total open interest for the contract. Exceeding this limit forces the hedger to split the hedge across multiple brokers or use OTC contracts.

Additionally, only entities registered as "trading members" of the exchange can directly trade ETCDs. Non‑trading entities must route orders through a broker, adding an operational layer and possible latency.

Exam focus: Remember the exact phrase "position limit" and that it is expressed as a % of OI. Questions may ask which of the following is NOT a regulatory limitation – the correct answer will be a non‑SEBI rule such as GST applicability.

Exchange‑traded contracts require both initial margin (IM) and variation margin (VM). The IM is a percentage of the contract value, typically 5‑10% for major currency futures. For long‑dated contracts, the margin can be substantial, tying up working capital.

Funding cost arises because the margin is held in a segregated account earning minimal interest. For a corporate hedger, the opportunity cost of capital can affect the net benefit of the hedge.

In NISM questions, you may be asked to compare the cost of hedging with futures versus OTC forwards, where the higher margin requirement of futures is a key disadvantage.

When any of the above limitations are present, the realised hedge ratio deviates from the theoretical 1:1 relationship. This leads to either excess gains or losses unrelated to the underlying exposure.

For instance, high basis risk can cause the futures price to move less than the spot, leaving the hedger partially exposed. Similarly, insufficient liquidity may force the hedger to accept a less favourable price, reducing the net benefit.

Exam candidates should remember that the NISM syllabus emphasises "effectiveness of hedge" as a function of both market and operational factors, not just the contract type.