Risk Reversal

What is a risk reversal?

A risk reversal is an options strategy that pairs a long option with a short option of the opposite type in the same expiration, conventionally both out of the money. A bullish risk reversal buys a higher-strike call and sells a lower-strike put; a bearish one buys the lower-strike put and sells the higher-strike call.

The pair shares the underlying, expiration, contract deliverable and quantity. The same name also describes a volatility quote, which compares call and put implied volatility at matched absolute deltas and a shared maturity.

Bullish risk reversal payoff at expiration

The example buys one 105 call for $2.10 and sells one 95 put for $2.10 with stock at $100. The premiums offset, creating a zero-premium package.

From $95 through $105 at expiration, both options have zero intrinsic value and the package earns zero. At $115, the call contributes $1,000 and the put contributes zero. At $85, the short put produces a $1,000 loss. At zero, the loss reaches $9,500 per standard package.

The upper payoff grows by $100 for each $1 stock rise above $105. The lower payoff falls by $100 for each $1 stock decline below $95.

How entry cost changes risk reversal breakevens

With a $1 debit, the bullish example loses $100 between the strikes and breaks even at $106. With a $1 credit, it earns $100 between the strikes and breaks even at $94. A zero-premium entry creates a complete zero-profit interval from $95 through $105.

Bearish risk reversal and synthetic stock

For the bearish version, reverse the option sides and calculate its entry premium. The long put produces increasing payoff below its strike; the short call produces increasing loss above its strike.

A synthetic long stock position uses the same strike for its call and put. The different strikes in the conventional risk reversal create its flat middle region.

How risk reversal volatility quotes measure skew

A 25-delta risk reversal compares a call near +0.25 delta with a put near −0.25 delta at one maturity. Under call IV minus put IV, 22% call IV and 27% put IV produce −5 percentage points. Reversing the subtraction produces +5 points.

Compare the same delta convention, maturity and subtraction order across observations. Use the resulting volatility skew to see how upside and downside options are priced relative to each other.

How to plan and manage a risk reversal

Use price levels and options flow to select the directional scenarios to test, then enter both legs in the options profit calculator to compare entry price, breakeven, outer payoffs, current Greeks and target-date value.

For physically settled options, a short put assignment buys shares and a short call assignment sells shares at the strike. Include those shares and the remaining long option when managing the complete position.

Risks and limitations of risk reversals

• Size the position from the short option, which carries most of the risk. In the bullish example the short put loses $100 for each $1 below $95 and $9,500 at a zero stock price; a bearish risk reversal’s short call has no cap on its loss.
• Budget capital from the margin, not the premium. The broker sets a margin requirement for the short option, and the position gains or loses $100 per $1 beyond either strike.
• Choose the entry price for the result you want between the strikes. The zero-premium example makes nothing from $95 through $105 at expiration, a debit entry loses money there, and only a net credit earns there.
• Check the sign convention before you read skew. The same 22% call and 27% put implied volatilities print as −5 points under call minus put and +5 under put minus call, and the delta and maturity must match across quotes.
• Manage an assignment and the long option as one position. The short option can be assigned on American-style contracts, creating a share purchase or sale while the long option stays open.

Bottom line

Selling the 95 put for $2.10 pays for the 105 call, so the risk reversal buys stock-like exposure for no premium. Below 95 it loses like stock, so size it from that loss, and read volatility risk reversal quotes only with their delta, maturity, and sign convention.