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Bullish2 LegsDefined risk

Strap

Buy two calls and one put at the same strike. A long volatility trade that leans bullish, paying twice as fast on an up move.

By Team Agora Circle

Written by the Agora Circle editorial team. Educational content, explained for the Indian market. Not investment advice.

Market outlook
Volatility bullish, direction leaning up. You expect a big move, more likely higher.
Setup
Buy 2 at the money calls and 1 at the money put at the same strike and expiry.
Max profit
Open ended both ways, but roughly twice as fast on the upside as on the downside.
Max loss
Limited to the total premium paid for all three options, at the strike on expiry.
Breakeven
Upside: strike plus half the total premium. Downside: strike minus the total premium.
Implied volatility
Strongly long vega. Rising implied volatility helps; an IV crush hurts.
Time decay
Time decay works against all three long legs and accelerates near expiry.

Strategy Overview

A strap is a long straddle tilted to the upside. Instead of one call and one put, you buy two calls and one put at the same at the money strike. The position still profits from a large move in either direction, but the extra call means the upside pays twice as fast as the downside, so it suits a view that a big move is coming and is more likely to be up than down.

Because all three legs are bought, the risk is fully defined at the combined premium, and that maximum loss occurs only if the index finishes exactly at the strike. Away from the strike, the calls or the put gain intrinsic value, and once the move is large enough to cover the premium, the position turns profitable, faster on the call side thanks to the double weighting.

The trade off is cost and decay. Three long options are expensive and the breakevens are wide, so the market must move far enough and soon enough to beat both the premium and the daily time decay. A strap rewards a genuine, sizeable move with an upward bias, not a quiet market.

How to Set It Up

Three long legs at the same strike, weighted two to one toward calls.

  1. 1Pick an expiry that covers the move or event you expect.
  2. 2Buy 2 at the money calls, which give the position its upside tilt.
  3. 3Buy 1 at the money put at the same strike. The total debit is your maximum loss and sets both breakevens.

Payoff Diagram and Example

Max Profit

Open ended both ways, but roughly twice as fast on the upside as on the downside.

Max Loss

Limited to the total premium paid for all three options, at the strike on expiry.

Breakeven

Upside: strike plus half the total premium. Downside: strike minus the total premium.

Strap payoff diagram025,000BE 24,410BE 25,295ProfitLossNIFTY at expiry

Suppose NIFTY is at 25,000 and you expect a big move, more likely up. You buy two 25,000 calls for 200 each and one 25,000 put for 190, a total debit of 590 points. With a lot size of 75, the outlay and maximum loss is 590 x 75 = Rs 44,250.

The upside breakeven is 25,295, because two calls split the 590 cost so the index only needs to rise about 295 points to cover it. The downside breakeven is 24,410, the strike minus the full 590, since a fall is carried by a single put.

If NIFTY rallies to 25,600, the two calls are together worth 1,200 while the put expires worthless, leaving 1,200 minus 590, or 610 points of profit, about Rs 45,750. A fall to 24,400 would leave the put worth 600 for a small profit, showing how the same sized move pays far more on the upside.

Entering and Exiting

Enter all three legs together so the two to one weighting is fixed from the start.

Exit by selling the options once the move happens, capturing intrinsic gains on the winning side plus any time value left. As with a straddle, holding an at the money strap into the final days is punishing if the move stalls.

Keep a time stop tied to your catalyst. A strap is a race against decay on three long legs, so if the expected move does not come, closing quickly to salvage premium beats hoping for a late swing.

Time Decay (Theta)

Theta hits all three long legs, which makes a strap even more decay sensitive than a plain straddle. At the money options carry the most time value, and that value bleeds fastest in the final weeks.

This is firmly an event trade. You want the move soon after entry, before decay erodes the larger premium you paid for three options.

Implied Volatility (Vega)

A strap is strongly long vega, more so than a straddle because of the extra call, so a rise in implied volatility lifts it even before the price moves. Entering when volatility is cheap improves the odds.

The same volatility crush danger applies, magnified by the third long leg. Buying a strap into an event when IV is already high risks a post event drop in volatility that deflates all three options quickly.

Common Adjustments

If the index rallies sharply, you can sell one call to take money off the table and leave a straddle like position, or sell the put to run a pure long call stance.

If the move goes down instead, the single put may be sold for a modest gain while the two calls are cut, reversing the bias.

To reduce cost and decay after a move, you can convert the profitable side into a spread by selling a further strike against it, locking gains and cutting the remaining theta.

Synthetic Equivalent

A strap is simply a long straddle plus one extra long call at the same strike, which is why it behaves like a straddle with a doubled upside.

By put-call parity the extra weighting can also be seen as adding synthetic long exposure to the underlying on top of a balanced straddle, which is the source of its bullish tilt.

Pros and Cons

Pros

  • Profits from a large move either way, with a built in upside tilt.
  • Upside pays roughly twice as fast as the downside for the same move.
  • Risk is fully defined at the combined premium.
  • Strongly long volatility, so it gains if implied volatility rises.
  • No margin obligation beyond the premium, since all legs are bought.

Cons

  • Expensive: three long options mean a large debit and wide breakevens.
  • Heavy time decay across all three legs, worst at the money.
  • A quiet market loses the entire premium.
  • Vulnerable to a volatility crush, more so than a two leg straddle.

Frequently Asked Questions

How is a strap different from a straddle?

A straddle buys one call and one put. A strap buys two calls and one put, adding an upside tilt. Both profit from a large move either way, but the strap pays about twice as fast on a rise, so it suits a big move that is more likely to be up.

When should I use a strap instead of just buying calls?

When you expect a large move that is probably up but you want protection if it goes down instead. The single put means a sharp fall still produces a profit, whereas a pure long call position would simply lose its premium on a drop.

Why are the two breakevens so different?

Because the upside is carried by two calls and the downside by one put. The two calls split the total cost, so the index needs only about half the move up to break even, while a fall must cover the full premium with a single put.

What happens to a strap if the index sits at the strike?

The total premium paid for all three options, which occurs only if the index finishes exactly at the strike at expiry. In the example that is 590 points, or Rs 44,250 on one lot.

Is a strap worth the extra cost over a straddle?

Only if you genuinely lean bullish. The extra call adds cost and decay, so it pays off when the move is up. If you have no directional bias at all, a plain straddle is cheaper and more balanced.

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This page is for education only. It is not investment advice, and nothing here is a recommendation to buy or sell any instrument. Options involve substantial risk, and option sellers can lose far more than the premium they receive. Please do your own research or consult a SEBI registered investment adviser before trading. Read our full disclaimer.

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