Chapter 5: Strategies Using Exchange Traded Currency Derivatives

Exchange-traded currency derivatives offer versatile instruments for three distinct categories of market participants: Hedgers seeking to neutralize currency risk, Speculators aiming to capitalize on directional exchange rate forecasts, and Arbitrageurs exploiting pricing anomalies.

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5.1 Market Participants & Strategic Objectives

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5.2 Hedging Through Exchange-Traded Currency Derivatives

Hedging involves taking a derivative market position that is equal and opposite to an existing or expected cash market foreign currency exposure.

1. Long Hedge (Import Hedging / Foreign Currency Payables)

• Underlying Exposure: An importer must pay foreign currency (e.g., $100,000 USD) in 3 months.
• Commercial Risk: The foreign currency appreciates (USD/INR rises), increasing the importer's Rupee procurement cost.
• Hedge Strategy: Buy Currency Futures (Long Futures) or Buy Call Options (Long Call).

Numerical Example: Importer Long Futures Hedge

• Commercial Obligation: USD 100,000 payable on June 28. Spot rate today = ₹ 83.20.
• Futures Action: Buy 100 lots of June USD/INR Futures at ₹ 83.50.
• Outcome on Expiry (June 28):
  • Scenario A (USD Appreciates to ₹ 84.50):
    • Cash market payment: 100,000 × ₹ 84.50 = ₹ 84,50,000.
    • Futures market profit: (84.50 - 83.50) × 1,000 × 100 = +₹ 1,00,000.
    • Net Effective Cost: ₹ 84,50,000 - ₹ 1,00,000 = ₹ 83,50,000 (Effective Rate: ₹ 83.50).
  • Scenario B (USD Depreciates to ₹ 82.50):
    • Cash market payment: 100,000 × ₹ 82.50 = ₹ 82,50,000.
    • Futures market loss: (82.50 - 83.50) × 1,000 × 100 = -₹ 1,00,000.
    • Net Effective Cost: ₹ 82,50,000 + ₹ 1,00,000 = ₹ 83,50,000 (Effective Rate: ₹ 83.50).

$$\text{Effective Purchase Price} = \text{Spot Rate on Settlement} - \text{Futures Gain (or } + \text{Futures Loss)}$$

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2. Short Hedge (Export Hedging / Foreign Currency Receivables)

• Underlying Exposure: An exporter expects to receive foreign currency (e.g., $100,000 USD) in 2 months.
• Commercial Risk: The foreign currency depreciates (USD/INR falls), reducing the exporter's Rupee earnings.
• Hedge Strategy: Sell Currency Futures (Short Futures) or Buy Put Options (Protective Put).

Numerical Example: Exporter Short Futures Hedge

• Commercial Expectation: USD 100,000 receivable on May 29. Spot rate today = ₹ 83.20.
• Futures Action: Sell 100 lots of May USD/INR Futures at ₹ 83.40.
• Outcome on Expiry (May 29):
  • Scenario A (USD Depreciates to ₹ 82.00):
    • Cash market realization: 100,000 × ₹ 82.00 = ₹ 82,00,000.
    • Futures market profit: (83.40 - 82.00) × 1,000 × 100 = +₹ 1,40,000.
    • Net Effective Realization: ₹ 82,00,000 + ₹ 1,40,000 = ₹ 83,40,000 (Effective Rate: ₹ 83.40).
  • Scenario B (USD Appreciates to ₹ 84.50):
    • Cash market realization: 100,000 × ₹ 84.50 = ₹ 84,50,000.
    • Futures market loss: (83.40 - 84.50) × 1,000 × 100 = -₹ 1,10,000.
    • Net Effective Realization: ₹ 84,50,000 - ₹ 1,10,000 = ₹ 83,40,000 (Effective Rate: ₹ 83.40).

$$\text{Effective Realization Rate} = \text{Spot Rate on Settlement} + \text{Futures Gain (or } - \text{Futures Loss)}$$

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3. Hedging with Options: Preserving Upside

• Protective Put for Exporters: Buy Put options. Floors the minimum conversion rate at Strike - Premium, while allowing full participation if USD appreciates.
• Protective Call for Importers: Buy Call options. Caps the maximum import cost at Strike + Premium, while allowing full benefit if USD falls.

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5.3 Option Trading Strategies

Option strategies combine multiple option legs (or options with underlying positions) to engineer custom risk-return profiles:

1. Covered Call Strategy

• Construction: Long Foreign Currency (or Exporter) + Sell OTM Call Option.
• Objective: Generate regular cash flow (premium collection) during neutral or mildly bullish conditions.
• Trade-Off: The exporter's upside is capped at the Call strike price ($X$).

2. Bull Call Spread (Debit Spread)

• Market Outlook: Moderately Bullish.
• Construction: Buy lower strike Call ($X_1$) at premium $C_1$ + Sell higher strike Call ($X_2$) at premium $C_2$ (where $X_1 < X_2$ and $C_1 > C_2$).
• Net Cash Flow: Net Debit ($C_1 - C_2$).
• Maximum Risk: Net Premium Paid ($C_1 - C_2$).
• Maximum Profit: $(X_2 - X_1) - (C_1 - C_2)$.
• Breakeven Point: $X_1 + (C_1 - C_2)$.

3. Bear Put Spread (Debit Spread)

• Market Outlook: Moderately Bearish.
• Construction: Buy higher strike Put ($X_2$) at premium $P_2$ + Sell lower strike Put ($X_1$) at premium $P_1$ (where $X_2 > X_1$ and $P_2 > P_1$).
• Net Cash Flow: Net Debit ($P_2 - P_1$).
• Maximum Risk: Net Premium Paid ($P_2 - P_1$).
• Maximum Profit: $(X_2 - X_1) - (P_2 - P_1)$.
• Breakeven Point: $X_2 - (P_2 - P_1)$.

4. Long Straddle (Volatility Expansion)

• Market Outlook: High Volatility Expectation (Direction Neutral — e.g., ahead of RBI MPC, US Fed decision, election results).
• Construction: Buy 1 ATM Call ($X$) + Buy 1 ATM Put ($X$) of identical expiration and strike.
• Maximum Loss: Total Premium Paid ($C + P$), occurring if the underlying settles exactly at $X$.
• Maximum Profit: Theoretically Unlimited.
• Two Breakeven Points:
  • Upper Breakeven: $X + (C + P)$
  • Lower Breakeven: $X - (C + P)$

5. Short Straddle (Volatility Contraction / Range-Bound)

• Market Outlook: Low Volatility / Consolidation (Underlying expected to remain range-bound).
• Construction: Sell 1 ATM Call ($X$) + Sell 1 ATM Put ($X$) of identical expiration and strike.
• Maximum Profit: Total Premium Collected ($C + P$), occurring if market closes at $X$.
• Maximum Loss: Unlimited if market breaks out sharply in either direction.
• Breakeven Points: $X \pm (C + P)$.

6. Long Strangle

• Construction: Buy 1 OTM Put ($X_1$) + Buy 1 OTM Call ($X_2$), where $X_1 < X_2$.
• Objective: Cheaper volatility breakout strategy than a straddle, but requires larger price movement to achieve profitability.
• Breakeven Points: Upper $= X_2 + \text{Total Premium}$; Lower $= X_1 - \text{Total Premium}$.

7. Collar Strategy (Zero-Cost Collar)

• Construction: Long Foreign Currency + Buy OTM Put ($X_1$) + Sell OTM Call ($X_2$).
• Corporate Utility: Exporters finance the purchase of the protective put by selling an out-of-the-money call option, creating a bounded hedge corridor at zero or nominal net upfront cost.

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5.4 Speculation & Trading Strategies

• Speculators trade exchange-traded currency derivatives to generate alpha through:
  1. Directional Momentum: Going long during anticipated dollar strengthening or short during dollar weakening.
  2. Breakout Trading: Taking positions when prices breach major support/resistance levels.
  3. Intraday Scalping: Exploiting intraday liquidity and tight bid-ask spreads.

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5.5 Arbitrage in Currency Derivatives

Arbitrageurs continuously monitor markets to exploit temporary mispricings:

1. Cash-and-Carry Arbitrage

• Occurs when the actual futures price ($F_{\text{actual}}$) exceeds the theoretical futures price ($F_{\text{theoretical}}$) governed by Interest Rate Parity: $$\text{Action: Buy Spot Currency (Borrow INR) } + \text{ Sell Currency Futures}$$
  • At expiration, cash is delivered/converted to pay off the loan, locking in a risk-free return exceeding the cost of capital.

2. Reverse Cash-and-Carry Arbitrage

• Occurs when the actual futures price is underpriced ($F_{\text{actual}} < F_{\text{theoretical}}$): $$\text{Action: Sell Spot Currency (Invest in INR) } + \text{ Buy Currency Futures}$$

3. Inter-Exchange Arbitrage

• Exploiting transient price discrepancies between registered exchanges (e.g., USD/INR futures trading at ₹ 83.2500 on NSE and ₹ 83.2575 on BSE): $$\text{Action: Buy on NSE at 83.2500 } + \text{ Sell on BSE at 83.2575}$$

4. Synthetic Positions via Put-Call Parity

• Synthetic Long Futures: $\text{Long Call } (X) + \text{Short Put } (X)$
• Synthetic Short Futures: $\text{Long Put } (X) + \text{Short Call } (X)$

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5.6 Calendar Spread Trading

A Calendar Spread involves taking offsetting positions in two contracts with different expiration dates on the same underlying currency pair:

• Long Calendar Spread: Buy far-month contract + Sell near-month contract.
• Margin Advantage: Exchanges levy substantially lower margin on calendar spreads because directional price risk is largely offset.
• Objective: Capitalize on shifts in the forward premium curve or roll over hedges seamlessly.

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5.7 Limitations of Exchange-Traded Currency Derivatives for Hedgers

While ETCD provides immense liquidity and zero counterparty risk, hedgers must manage three inherent operational constraints:

1. Basis Risk:
   • The risk that the spread between the futures price and the spot price changes unexpectedly, or that the commercial transaction date does not coincide with standardized monthly expiry dates.
2. Quantity Mismatch:
   • Standardized lot sizes (1,000 units) may leave fractional invoice amounts unhedged.
3. Cash Flow Requirements (Daily MTM Margins):
   • Daily cash outflows may be required to fund MTM losses during adverse currency movements, requiring dedicated treasury liquidity even though the underlying commercial position is perfectly protected.

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Key Exam Takeaways for NISM Series I

• An importer hedging foreign currency payables initiates a Long Hedge (buys futures or buys calls).
• An exporter hedging foreign currency receivables initiates a Short Hedge (sells futures or buys puts).
• A Bull Call Spread has limited profit and limited risk, and requires a net debit of premium.
• A Long Straddle consists of buying an ATM Call and ATM Put of the same strike and expiry, designed for explosive volatility breakouts.
• In a Short Straddle, the maximum profit is the Total Premium Collected, occurring if the market settles exactly at the strike price.
• A Collar strategy combines a long underlying position with a protective put and a covered call to hedge at low or zero net cost.
• When actual futures trade above theoretical IRP value, arbitrageurs execute Cash-and-Carry Arbitrage (Buy Spot, Sell Futures).