Long
Strangle
Buying an out-of-the-money call and put together for a cheap, direction-neutral bet on a big move — defined risk, two breakevens and rising profit on a sharp swing either way.
What is a long strangle?
A long strangle buys one out-of-the-money call and one out-of-the-money put on the same underlying and expiry, with the call strike above the spot and the put strike below it. You pay two premiums and, in return, profit if the underlying makes a large move in either direction. It is a pure volatility play: you do not need to be right about direction, only about magnitude.
Because both strikes sit out of the money, a strangle is cheaper than a same-strike long straddle — but it also needs a bigger move to pay off. Between the two strikes lies a flat valley where, at expiry, both options expire worthless and you lose the full premium. Outside the breakevens, one leg gains value faster than the cost of the trade.
Key takeaways
- A long strangle is a direction-neutral, long-volatility trade — you want a big move either way.
- It is cheaper than a straddle because both legs are out of the money.
- Risk is defined and limited to the total premium paid for the call and put.
- It has two breakevens — one above the call strike, one below the put strike.
- Its enemies are time decay and falling IV; both legs bleed theta while the market sits still.
How a long strangle works
You construct it by buying 1 OTM call and buying 1 OTM put of the same expiry. As a net buyer of options you face no short obligation, so there is no SPAN or exposure margin — you simply pay the combined premium. NIFTY and Bank Nifty options are cash-settled, so a winning leg is paid out in cash at expiry.
The trade is long vega and long gamma: a jump in implied volatility lifts both options, and a fast directional move makes the in-the-money leg gain quicker than the other loses. The cost is theta — every quiet day drains time value from both legs. The textbook use is buying a strangle before a known catalyst (results, RBI policy, the Budget) when you expect a sharp reaction but cannot call the direction.
The numbers that matter
Worked NIFTY example
Suppose NIFTY is near 22,500 and a big event is due, but you cannot tell which way it will break. You buy the 22,800 call for ₹90 and the 22,200 put for ₹85, a combined ₹175. With a lot size of 75, the trade costs ₹175 × 75 = ₹13,125 (illustrative figures):
- Upper breakeven: 22,800 + 175 = 22,975.
- Lower breakeven: 22,200 − 175 = 22,025.
- Max loss: ₹13,125 if NIFTY expires anywhere between 22,200 and 22,800.
| NIFTY at expiry | Outcome | P&L (1 lot) |
|---|---|---|
| 21,500 | Put deep ITM, call worthless | +₹39,375 |
| 22,025 (lower BE) | Put offsets premium | ≈ ₹0 |
| 22,500 | Both expire worthless | −₹13,125 |
| 22,975 (upper BE) | Call offsets premium | ≈ ₹0 |
| 23,500 | Call deep ITM, put worthless | +₹39,375 |
The payoff is a U-shape: a flat loss valley between the strikes, with profit rising on either flank once the move clears a breakeven.
When to use a long strangle
- You expect a large move but are unsure of direction — a classic event-driven setup.
- Implied volatility is low, so the legs are cheap and a vol spike would help.
- You want defined risk — the most you can lose is the premium you paid.
- You prefer a cheaper alternative to a straddle and accept needing a bigger move.
Risks to respect
- Time decay: both legs lose theta daily; a stalled market erodes the trade fast.
- IV crush: after the event, implied volatility often collapses, hurting both options even on a modest move.
- Wide breakevens: the underlying must move more than a straddle would need before you profit.
- Total loss zone: any expiry between the strikes wipes out the entire premium.
Long strangle vs long straddle
The long straddle buys the call and put at the same at-the-money strike, so it costs more but starts gaining on a smaller move. The strangle spreads the strikes out of the money, cutting the premium but pushing its breakevens further apart. Choose a straddle when you expect a powerful move and want tighter breakevens; choose a strangle when you want to pay less and believe the move will be very large.
Long strangle vs short strangle
They are mirror images. The long strangle buys both legs, pays premium and profits from a big move — long volatility, defined risk. A short strangle sells both legs, collects premium and profits from a quiet market — short volatility, with open risk on a sharp move. Buyers favour the long strangle into uncertainty; sellers favour the short strangle in calm, high-IV conditions.
Why is it called a “strangle”?
The name pictures the two out-of-the-money strikes “strangling” the spot price between them — the call above and the put below, squeezing the range where the trade loses. Push past either strike and the grip releases into profit. It is the spread-strike cousin of the straddle, which sits astride a single strike.
Frequently asked questions
Is a long strangle bullish or bearish?
Neither. It is direction-neutral and profits from a large move either way, so it is a long-volatility trade rather than a directional one.
What is the maximum loss on a long strangle?
The total premium paid for the call and put. You suffer it only if the underlying expires between the two strikes so both legs expire worthless.
How is a long strangle different from a long straddle?
A straddle buys the call and put at the same at-the-money strike, costing more. A strangle uses out-of-the-money strikes, so it is cheaper but needs a bigger move to reach its breakevens.
Do I need margin to buy a long strangle in India?
No. Both legs are bought, so you only pay the combined premium up front. There is no SPAN or exposure margin because you have no short obligation.
The bottom line
The long strangle is a cheap, defined-risk way to bet on turbulence without picking a side: buy an OTM call and an OTM put, and let a big move do the rest. The trade-off is wider breakevens and a steady theta drain, so it rewards good timing around catalysts and punishes a market that simply sits still. Used into low IV before a known event, it is one of the cleanest long-volatility expressions on the NSE.
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Related strategies & terms
- Long Straddle — the same idea at one at-the-money strike, costlier but tighter.
- Short Strangle — the mirror trade that sells both legs for income.
- Guts — a strangle built from in-the-money strikes instead.
- Implied Volatility · Breakeven · Vega