Straddle vs. strangle options: Two ways to trade volatility

Straddles and strangles are popular two-leg options strategies that combine a call and a put with the same expiration. You can use them to capitalize on an asset’s expected volatility or the magnitude of its price movement.

While a straddle uses the same strike price for both the call and the put, a strangle is based on different strike prices, though both of these strategy types assume the same expiration.

In this article, we compare the long and short variants of both strategies in terms of strike selection, premium, breakevens, payoff and risk.

Key Takeaways:

• Straddles and strangles are two-leg options strategies that use contracts with the same expiration date. The former employs the same call and put strike prices, whereas the latter uses different strike prices.

• Long variants need the underlying asset to move beyond its breakeven in order to profit at expiration, while short variants benefit from more limited movement but carry substantial risk.

• For comparable expirations and appropriately selected strikes, long strangles generally have a lower premium cost than long straddles, but they require a larger underlying in order to reach breakeven.

What are straddle and strangle options?

Straddles and strangles are two-leg options strategies, each one combining a call option and a put option that share the same expiration date.

A straddle uses the same strike price for both options. In contrast, a strangle sets different strike prices for the call and the put. You choose between the two varieties based on how you want to structure the strike prices of your legs.

Both strategies come in long and short variants, so you can build either one on the buy side or the sell side.

Straddle vs. strangle options: Quick comparison

The table below provides a quick qualitative overview of straddles and strangles, including the risk of short positions.

As the table above shows, long straddles generally cost more than long strangles because they typically use at- or near-the-money options, while strangles use OTM options. The exact premium still depends upon the strikes and contracts selected.

In terms of risk, your maximum loss on long variants is limited to the premium you paid. Short variants carry substantial risk, with theoretically unbounded losses on the upside and substantial but bounded losses on the downside.

How does a long straddle work?

A long straddle consists of purchasing a call option and a put option with the same strike price and expiration date. As a buyer, you pay a premium for both contracts. This total debit sets your maximum loss under the strategy.

Assume a 1 BTC option quantity for each leg, so the quoted premiums and breakevens are expressed on a per-BTC basis. A long straddle’s breakevens are the strike, plus or minus the premium. For instance, if Bitcoin (BTC) is trading at $80,000 and you paid $6,000 for the two options, the lower and upper breakevens are $74,000 and $86,000, respectively. Your maximum loss occurs if BTC settles exactly at $80,000.

Bybit charges options trading fees, while options that expire in-the-money (ITM) and are automatically exercised may also incur applicable delivery fees. These costs are excluded from the example, so the actual P&L will differ.

Upside profit here is theoretically unlimited, but downside profit is capped because the underlying asset cannot fall below zero.

How does a long strangle work?

A long strangle involves buying an OTM put and an OTM call with the same expiration, with the put below the market price and the call above it. Compared with a long straddle, a long strangle generally costs less under comparable conditions, but requires a larger price move to reach breakeven. In the example diagram (below), the combined cost of the premiums is $4,000, lower than the $6,000 in the long straddle diagram (above).

Note: The diagrams above show theoretical payoff at expiration, not mark-to-market P&L before expiration.

Short straddles and short strangles

The short variations of these strategies reverse the long setups, with you now writing a put and a call. You collect a premium credit, which is your maximum profit before fees at expiration.

For a short straddle, the breakevens are the common strike, plus or minus the total credit. For a short strangle, the lower breakeven is the put strike minus the total credit, and the upper breakeven is the call strike plus the total credit.

Upside loss in shorts can be unbounded, while downside loss can also be substantial but is theoretically limited by BTC reaching zero. The credit received doesn’t remove margin or liquidation risk, and margin requirements depend upon your portfolio as well as your account mode (Cross or Portfolio). In general, the short variations aren’t suitable for beginners, due to potentially large losses.

The worked comparison below shows how the qualitative differences translate into hypothetical payoff figures at expiration, using a BTC reference price of $80,000.

Note: The figures above are hypothetical expiration outcomes for 1 BTC of option quantity per leg, before fees and bid/ask spreads. Matching long debits and short credits are assumed only for comparison; actual premiums and breakevens may differ.

Choosing between a straddle and a strangle

Long straddles carry higher total premium costs, but they require smaller underlying price movements to reach breakeven than long strangles do. For short variants, straddles may collect more premium under comparable conditions, while strangles provide a wider maximum-profit range between their strikes.

All else being equal, time decay generally works against long straddles and strangles and in favor of short variants, although its effect varies by strike and time to expiration.

Before expiration, higher implied volatility (IV) generally benefits long straddles and strangles and works against short straddles and strangles, all else being equal. Lower IV generally has the opposite effect.

Straddles and strangles on Bybit

On the Bybit App, go to Trade → Options, switch to Pro mode and open the Strategies tab. Straddles and strangles are available as preset strategies, whereby you can select the underlying, expiration, quantities and direction (long/buy or short/sell).

Short-option legs require margin, with two margin modes available: Cross and Portfolio. Your margin requirements depend upon the selected mode. Under Portfolio Margin, Bybit assesses risk across the portfolio and may recognize offsets between the legs, which in some cases can reduce margin requirements (compared with Cross Margin). The actual requirement still depends upon the portfolio’s overall risk profile.

The payoff shown in the strategy builder is only an estimate. Your actual execution price and P&L may differ, especially when liquidity is limited. If liquidity is extremely low, you may not be able to create your strategy.

Risks and limitations of straddles and strangles

Remember that time decay erodes option premiums as expiration approaches. Changes in implied volatility can also affect the value of the strategy before expiration. For long variants, falling IV can work against the position, while rising IV can work against short variants, all other things being equal.

Execution also comes with costs and liquidity risk. Bid/ask spreads and slippage can affect what you pay to enter or exit the strategy, while limited liquidity can make it harder to achieve the expected execution.If you close the strategy early, your result depends upon current market prices and liquidity, rather than the payoff shown at expiration.

The bottom line

Using long straddles and strangles comes down to a basic trade-off: you pay a total premium, and the underlying price must move far enough to cover that cost before you turn a profit. The required move depends upon the strikes selected and the total premium paid. For short variants, compare the premium received with the size of the profitable range and potential losses.

If you prefer a range-bound options trading strategy, iron condors offer a viable alternative.

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