Risk Reversal (Bullish)
A bullish risk reversal sells a put and buys a call to make a low-cost bullish bet. Learn how it works, why it is often free, and the downside risk it carries.
A bullish risk reversal sells an out-of-the-money put and buys an out-of-the-money call, creating a low-cost bullish bet. The premium collected from the sold put helps pay for the call, so the whole trade often costs little or nothing to enter.
It is a synthetic long built with out-of-the-money strikes, and it doubles as a way to trade the market's skew. Let me show you how it works.
Sell the Put, Buy the Call
A risk reversal funds an upside bet with a downside obligation. You sell a put below the current price, collecting premium, and use that premium to buy a call above the current price. If the two premiums roughly match, the position is close to free.
The result is a bullish trade with a distinctive shape. If the stock rises, your call gains. If it stays flat between the strikes, both options expire worthless and you paid almost nothing. If it falls below your short put, you take losses like a stockholder would. You reversed the usual cost of a call by financing it with a put, hence "risk reversal."
Watch It Work
Apple is at $200 and you are bullish. You build a bullish risk reversal:
- Sell the $190 put for $4 a share
- Buy the $210 call for $3 a share
- Net credit: $1 a share, or $100 collected
You are bullish, positioned for almost nothing, and even paid a small credit to enter.
Apple rises to $230. Your $210 call is worth $20 a share, or $2,000, while the sold put expires worthless. You keep the gain plus the small credit.
Apple sits at $200. Both options expire worthless. You keep the $100 credit and paid nothing net. A quiet stock costs you almost nothing.
Apple crashes to $170. The $190 put you sold is now worth $20 a share against you, a $2,000 loss, just as a shareholder would feel below $190. That downside obligation is the price of the cheap upside.
Cost, Risk, and Skew
A risk reversal is a favorite of confident bulls, but it is not free of danger, and it carries a hidden signal.
Low cost, real risk. The appeal is a cheap or free bullish position. The catch is the sold put, which gives you stock-like downside if the stock falls hard. This is not a defined-risk trade like a spread; it is closer to being long the stock below the put strike.
It trades the skew. Because of volatility skew, out-of-the-money puts often carry richer premium than out-of-the-money calls. That means selling the put can more than pay for the call, which is why a bullish risk reversal frequently enters for a credit. You are, in effect, selling expensive fear to fund cheaper hope.
Its mirror is the bearish risk reversal, and adding long stock turns the same legs into a protective collar.
- A bullish risk reversal sells a put and buys a call, both out of the money.
- The sold put funds the call, so it is often free or a credit.
- It carries stock-like downside if the stock falls below the put.
- It trades the skew, selling richer put premium to buy cheaper calls.
Pop Quiz
Three quick questions to see what stuck. Pick an answer and the explanation shows up right away.
How is a bullish risk reversal built?
You sell the put to fund buying the call, creating a cheap bullish position.
Why is a bullish risk reversal often free or a credit?
Volatility skew tends to price out-of-the-money puts richer than calls, so selling the put can more than fund the call.
What is the main risk of a bullish risk reversal?
The sold put gives full stock-like downside below its strike, so a hard fall hurts like owning shares.
Bottom Line
A bullish risk reversal finances an upside bet with a downside obligation: sell a put, buy a call, and often pay nothing or collect a credit. It is a confident bull's low-cost way to position for a rise, and it quietly sells the market's expensive fear to fund cheaper hope.
The cost shows up if you are wrong. The sold put means a hard fall hurts like owning the stock, so this is stock-like risk, not the capped risk of a spread. Use it when you are genuinely bullish and comfortable owning the downside.
Keep going: it is a synthetic long with wider strikes, its bearish mirror is the bearish risk reversal, and adding stock makes it a collar.