Conceptual · Article 8.2.2
Currency Options.
The Right to Hedge — Without the Obligation to Regret It.
Published as on 22 July 2026
A currency option is an exchange-traded contract that hands the buyer a right, not a duty: to buy (a call) or sell (a put) a currency at a fixed strike on expiry, in return for a premium paid upfront. That single asymmetry is the whole point. An exporter who buys a USD/INR put locks in a floor rate yet keeps every rupee of gain if the currency moves in their favour — protection without the symmetry of a future. In India these trade on NSE and BSE on USD/INR (with EUR/INR and GBP/INR alongside), are European-style, and settle in cash at the FBIL Reference Rate. The buyer's loss is capped at the premium; the writer earns that premium but shoulders far larger risk and posts margin. Crucially, they attract neither STT nor CTT — and are taxed as non-speculative business income under Section 43(5)(d).
USD 1,000
Lot Size · Per Contract
Premium
Buyer's Max Loss
FBIL · INR
Cash Settlement
Nil STT / CTT
Transaction Tax
Executive Summary · Page 2
Executive Summary · 6 Findings
A currency option is insurance on an exchange rate. You pay a known premium, and in return you cap your loss on an adverse move while keeping the benefit of a favourable one. That is why an option is often the cleaner hedge than a future — it protects one direction without surrendering the other. The catch is the premium: it is a real, sunk cost that decays with time, and the writer on the other side is selling that insurance for income while carrying the tail risk.
Covers what a currency option is and why its asymmetry beats a future for hedging, the NSE/BSE contract specifications and cash settlement at the FBIL rate, call and put payoff mechanics with worked exporter and importer examples, the premium split into intrinsic and time value, the option Greeks, six hedging structures from the long put to the zero-cost collar and seagull, the tactical role of weekly options, the zero-STT/CTT cost edge, Section 43(5)(d) taxation, and six questions Indian hedgers ask.
Key Findings
A right, not an obligation — that is the whole idea.
The buyer of a currency option pays a premium for the right to transact at a fixed strike, but is never forced to. The writer takes the matching obligation. This asymmetry means a hedger keeps upside participation while capping downside — the reason an option is often preferred over a future, which locks the rate for both sides.
Loss capped at the premium — for the buyer only.
Buy an option and the most you can lose is what you paid, no matter how violently the market moves. Write one and you collect the premium upfront but take on far larger, potentially open-ended risk, and must post margin. The payoff is asymmetric by design; so is the risk between the two sides.
Exchange-traded, European-style, cash-settled at FBIL.
USD/INR is the liquid contract on NSE and BSE, with EUR/INR and GBP/INR alongside. Options are European — exercised only at expiry — with $1,000 lots and 25-paise strikes. There is no delivery of dollars: in-the-money positions settle in rupees at the FBIL Reference Rate. Both weekly and monthly expiries are available.
Built for hedgers — with a known, limited cost.
The prime use is hedging forex exposure. An importer buys a call to cap purchase costs; an exporter buys a put to floor receipts. The premium is the price of that certainty. Structures like the zero-cost collar and seagull cut or even eliminate the upfront outlay by capping the upside in return.
No STT, no CTT — a real cost edge over equity options.
Currency options attract neither Securities Transaction Tax nor Commodities Transaction Tax, on premium or on exercise. Equity options pay STT on both. For hedgers who roll positions month after month, that absence is a meaningful saving. Exchange fees, SEBI charges, GST on brokerage and stamp duty still apply.
Non-speculative business income under Section 43(5)(d).
Gains and losses are taxed at slab rate as non-speculative business income — identical to currency futures. Losses set off against any income except salary and carry forward for eight years. Filing is via ITR-3, and a Section 44AB audit may apply. A 2024 RBI framework asks participants to hold a valid underlying forex exposure.
At A Glance
| Parameter | Value | Detail |
|---|---|---|
| Underlying | USD/INR | + EUR, GBP/INR |
| Lot size | USD 1,000 | Per contract |
| Style | European | Expiry only |
| Settlement | Cash, INR | FBIL rate |
| Strike interval | ₹0.25 | ~25 strikes |
| Buyer max loss | Premium | Fully capped |
| STT / CTT | Nil / Nil | Both waived |
| Tax | Slab · 43(5)(d) | Non-speculative |
Exhibit 01: One Put, Two Very Different Days
| Exporter's ₹84 Put | Spot ₹81 | Spot ₹87 |
|---|---|---|
| Intrinsic value | ₹3.00 | ₹0 |
| Less premium | −₹0.50 | −₹0.50 |
| Net per USD | +₹2.50 | −₹0.50 |
| Per contract | +₹2,500 | −₹500 |
*Illustrative. ₹84.00 strike, ₹0.50 premium, $1,000 lot. When the rupee strengthens to ₹81 the put pays ₹2,500 and offsets the exporter's weaker realisation. When it weakens to ₹87 the put lapses — loss limited to the ₹500 premium — while the exporter simply converts at the better market rate. The premium is the price of that one-sided protection.
The Opening · Page 3
The Opening
A currency option is the closest thing financial markets have to an insurance policy on an exchange rate. You pay a premium today; in return you gain the right — never the obligation — to transact at a pre-agreed rate on a future date. If the market turns against you, you exercise and collect. If it turns in your favour, you let the option lapse and enjoy the better rate, losing only what the premium cost. A future, by contrast, is a two-way handcuff: it removes the bad outcome and the good one alike. That single difference in payoff shape is why hedgers so often reach for options.
"An option gives the buyer a floor or a ceiling while leaving the door open to a better rate. A future closes both doors at once. The premium is simply the price of keeping one of them open — and, like any insurance, it is money you hope you never need to have spent."
Asymmetry, Priced
The mechanics. Two contracts, two directions. A call is the right to buy the currency at the strike — the importer's instinct, protecting against a rising dollar. A put is the right to sell at the strike — the exporter's instinct, protecting against a falling one. In India both are European-style: they can be exercised only at expiry, and they settle in cash at the FBIL Reference Rate rather than in physical dollars. The buyer's arithmetic is clean: maximum loss equals the premium, breakeven is the strike shifted by that premium, and profit runs from there.
The two sides. Every option has a writer. The seller pockets the premium as income and, if the option expires worthless, keeps all of it. But the writer carries the mirror-image risk of the buyer — larger, and for a naked position potentially open-ended — and must post and maintain margin against it. Buying options is a limited-risk act; writing them is not. It is a distinction worth internalising before the first trade.
Structure
Part I
What a Currency Option Is & How It Differs from a Future
Part II
Payoff Mechanics, the Premium & the Greeks
Part III
Hedging Structures, Weekly Options & the Cost Edge
Part IV
The Verdict: Tax, Rules & When to Use One
Use If
✓ You have a real forex receivable or payable
✓ You want downside cover, upside kept
✓ A known, limited hedging cost suits you
✓ You can manage margin and F&O tax filing
Do NOT Use If
✕ You are punting on the rupee, no exposure
✕ You want a hedge with zero cost and no cap
✕ You would write naked options for income
✕ Time decay would grind out a small exposure
Part I
What a Currency Option Is, and Why Its Asymmetry Beats a Future for Hedging
The right-without-obligation that defines an option; the NSE/BSE contract specifications, European style and cash settlement at the FBIL rate; and the single difference in payoff shape — a floor or ceiling versus a locked rate — that makes an option the more flexible hedge.
Part I · Page 4
Contract Specifications
| Parameter | Detail |
|---|---|
| Underlying | USD/INR; EUR/INR, GBP/INR |
| Lot size | USD 1,000 |
| Option style | European (expiry only) |
| Tick size | ₹0.0025 (₹2.50 / lot) |
| Strike interval | ₹0.25, ~25 strikes |
| Expiries | Monthly + weekly (Friday) |
| Settlement | Cash, INR, FBIL rate |
USD/INR is by far the most liquid pair; EUR/INR and GBP/INR carry much lower open interest. In-the-money long positions are exercised automatically at expiry, with random assignment to open shorts. Settlement is in rupees — no dollars change hands.
The Defining Asymmetry
A Floor or Ceiling, Not a Handcuff
An exporter who sells a USD/INR future at ₹84.00 is locked at ₹84.00 — no worse, no better. The same exporter who buys a ₹84.00 put guarantees a floor of ₹84.00 yet still gains fully if the rupee slides to ₹86.00. The premium is the price of keeping that upside. That is the trade an option offers and a future cannot.
Option vs Future
| Feature | Option (Buyer) | Future |
|---|---|---|
| Obligation | Right only | Firm, both sides |
| Max loss | Premium | Very large |
| Upside | Retained | Locked away |
| Payoff | Asymmetric | Linear |
| Upfront | Premium (T+1) | Margin only |
Both are exchange-traded, cash-settled and free of STT/CTT. The divide is payoff shape: an option bends the outcome into a floor or ceiling; a future draws a straight line. The exporter's future locks ₹84.00 exactly; the exporter's put floors ₹84.00 while leaving the ceiling open.
Part II
Payoff Mechanics, the Anatomy of the Premium, and the Greeks
How calls and puts pay off with worked importer and exporter examples; why the premium splits into intrinsic value and time value, and why time value decays; and how delta, gamma, vega and theta describe an option's behaviour as the market and the calendar move.
Part II · Page 6
Payoff — Worked
Call — Importer's Hedge
Buy a ₹84.00 call at ₹0.50; breakeven ₹84.50. If USD/INR settles at ₹87.00, intrinsic value is ₹3.00, net gain ₹2.50 × 1,000 = ₹2,500, offsetting a costlier dollar purchase. If it settles at ₹82.00, the call lapses — loss is the ₹500 premium — and the importer simply buys dollars cheaper at spot.
Put — Exporter's Hedge
Buy a ₹84.00 put at ₹0.50; breakeven ₹83.50. If USD/INR settles at ₹81.00, intrinsic value is ₹3.00, net gain ₹2.50 × 1,000 = ₹2,500, cushioning a weaker realisation. If it settles at ₹87.00, the put lapses — loss is the ₹500 premium — and the exporter converts at the better market rate.
Cash Settlement
At expiry, in-the-money longs exercise automatically. The settlement amount equals intrinsic value × lot size, credited or debited in rupees at the FBIL Reference Rate. No physical dollars are delivered — the entire mechanism runs in INR.
The Premium: Two Parts
Intrinsic + Time Value
Intrinsic value is how far in-the-money the option is — max(spot − strike, 0) for a call. Time value is the rest of the premium, reflecting the chance of moving deeper ITM before expiry. A ₹84.00 call with spot ₹84.60 and premium ₹0.90 carries ₹0.60 intrinsic and ₹0.30 time value.
Time Decay — The Buyer's Tax
Time value erodes toward zero by expiry, and the decay accelerates sharply in the final days. It is a cost for the buyer and a gain for the writer. On weekly USD/INR options in their last day, a large slice of remaining time value can vanish in 24 hours — the core reason weeklies punish buyers who are early or wrong.
The Greeks, Briefly
| Greek | Measures | Buyer is |
|---|---|---|
| Delta | Premium move per ₹1 spot | ±, direction |
| Gamma | How fast delta shifts | Long |
| Vega | Sensitivity to volatility | Long |
| Theta | Daily time decay | Short |
ATM options carry a delta near ±0.50 and the highest gamma near expiry. Buyers are long vega — rising implied volatility lifts their options — and short theta, paying for time. Pricing follows the Garman-Kohlhagen model, which folds in both the INR and USD interest rates.
Part III
Hedging Structures, the Tactical Role of Weekly Options, and the Cost Edge
From the simple long put to spreads that cut cost, the zero-cost collar that eliminates the upfront premium, and the seagull that can pay you to hedge; why weekly options serve event and payment-specific needs; and the STT/CTT-free cost structure that rewards frequent rollers.
Part III · Page 8
Six Hedging Structures
| Structure | Cost | Trade-off |
|---|---|---|
| Long put / call | Full premium | No cap on gain |
| Put / call spread | Lower | Capped protection band |
| Range forward | Zero | Upside capped |
| Seagull | Net credit | Narrower protection |
Range Forward / Zero-Cost Collar
Buy a put at the floor, sell a call at the cap, strikes chosen so premiums cancel — zero net outflow. Buy the ₹83.50 put, sell the ₹85.00 call: protected below ₹83.50, free to convert between, capped above ₹85.00. India's most common structured exporter hedge — protection for no upfront cost, at the price of the upside above the cap.
Seagull — Getting Paid to Hedge
Three legs: buy a ₹84.00 put, sell a ₹82.00 put, sell a ₹86.00 call. The two sold options more than finance the bought put, so the exporter may net a small premium credit. The cost is narrower protection — nothing below ₹82.00, gains capped above ₹86.00. Rational in calmer, low-volatility markets.
Weekly Options — Tactical
Precision for Short Horizons
USD/INR weeklies expire every Friday. A hedger facing a single-week event — or a specific payment date — can buy just that week's protection instead of paying for a full month's time value. The trade-off is steep theta: weeklies decay far faster per day, punishing buyers if the market sits still and rewarding disciplined writers.
The Cost Edge vs Equity Options
| Cost | Currency | Equity |
|---|---|---|
| STT on premium | Nil | Yes |
| STT on exercise | Nil | Yes |
| CTT | Nil | N/A |
| Exchange / SEBI / stamp | Applies | Applies |
Currency options carry neither STT nor CTT on premium or exercise; equity options pay STT on both. For hedgers rolling positions monthly, that absence is a genuine, repeated saving.
Part IV
The Verdict
Insurance on a rate. Priced, not free.
Part IV: The Verdict · Page 10
30-Second Summary
A currency option gives the buyer the right, not the obligation, to buy (call) or sell (put) a currency at a fixed strike on expiry, for an upfront premium. In India they trade on NSE and BSE on USD/INR, EUR/INR and GBP/INR — European-style, cash-settled in rupees at the FBIL Reference Rate, in $1,000 lots at 25-paise strikes. The buyer's loss is capped at the premium while the upside is retained; the writer earns the premium but takes larger risk and posts margin. That asymmetry is why an option is often the cleaner hedge than a future.
The premium splits into intrinsic and time value, and time value decays — fastest in a contract's final days. Structures run from the simple long put to the zero-cost collar and the seagull, each trading protection against cost. Currency options attract neither STT nor CTT, a real edge over equity options for frequent rollers. Tax is non-speculative business income under Section 43(5)(d) at slab rate, set off against any income except salary, carried forward eight years, filed via ITR-3, with a possible Section 44AB audit. Since 2024, the RBI expects participants to hold a valid underlying forex exposure.
"An option answers a hedger's real question — what is the worst rate I can be forced to accept? — and lets you fix that number for a known fee, while keeping the chance of something better. It is not a lottery ticket on the rupee. Used as insurance on an exposure you actually carry, it is one of the most elegant tools a business has. Used as a punt, it is an expensive way to donate to time decay."
The Final Orientation
ADWIZR · July 2026
Decision Rules
Use Correctly As
✓ Insurance on a real forex exposure
✓ Downside cover with upside kept
✓ A zero-cost collar to cap outlay
✓ Event or payment-date protection
Misuse Destroys Value
✕ Directional punt, no exposure
✕ Writing naked options for income
✕ Long-dated hedge left to decay
✕ Chasing the cheapest-looking structure
Three Misconceptions
What Hedgers Get Wrong
(1) "A collar is free." It costs nothing upfront, but you sell away every gain above the cap. (2) "Options are just leverage." They are for buyers, but the buyer's loss is capped; the writer's risk is the open-ended one. (3) "I can hold and wait." Time value decays daily and accelerates near expiry — patience is expensive for a buyer.
The Underlying-Exposure Rule
Hedgers First, by Design
Under the RBI's 2024 framework for exchange-traded currency derivatives, participants are responsible for holding a valid underlying contracted forex exposure and must be able to establish it, beyond a small ceiling for price discovery. The rules point these contracts squarely at genuine hedgers rather than pure speculators.
Investor FAQ
Questions Indian Hedgers Ask
Six questions, answered directly.
Investor FAQ · Page 12
Frequently Asked Questions
Q1 What is a currency option, and how is it different from a future?
Q2 How much can I lose trading currency options?
Q3 Are currency options taxed as speculative income in India?
Q4 Do currency options attract STT or CTT?
Q5 What is a zero-cost collar (range forward), and why do exporters use it?
Q6 Can anyone trade USD/INR options, or do I need underlying forex exposure?
Key Terms & Definitions
Currency Option
An exchange-traded contract giving the buyer the right, not the obligation, to buy (call) or sell (put) a fixed amount of foreign currency at a pre-agreed strike on expiry, for an upfront premium. In India these are European-style and cash-settled in rupees at the FBIL Reference Rate.
Call & Put
A call is the right to buy the currency at the strike — the importer's hedge against a rising dollar. A put is the right to sell at the strike — the exporter's hedge against a falling one. The buyer profits once the rate clears the strike by more than the premium paid.
Premium
The price the buyer pays the writer for the option. It splits into intrinsic value (how far in-the-money the option is) and time value (the rest, reflecting the chance of moving deeper ITM before expiry). Time value decays to zero by expiry.
Zero-Cost Collar (Range Forward)
A structure pairing a bought put (floor) with a sold call (cap), strikes chosen so the premiums offset for no net outlay. The exporter gains downside protection for free, in exchange for surrendering gains above the cap. India's most common structured exporter hedge.
Theta (Time Decay)
The daily erosion of an option's time value — a cost for buyers and a gain for writers. Decay accelerates near expiry, and is especially steep on weekly USD/INR options in their final day, when much of the remaining time value can vanish within 24 hours.
Section 43(5)(d)
The Income Tax Act provision under which exchange-traded currency derivatives are non-speculative business income. Taxed at slab rate, losses set off against any income except salary and carry forward eight years, filed via ITR-3, with a possible Section 44AB audit.