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What is the difference between an iron condor and an iron butterfly?
An iron condor and an iron butterfly both combine a short put and a short call with long options as wings in one expiration. The difference is where the short options sit. An iron condor sells them at two separate out-of-the-money strikes, so it keeps the full credit if the stock finishes anywhere between them. An iron butterfly sells both at one middle strike, so the full credit is earned only if the stock finishes exactly there.
The complete four-leg structure caps the expiration loss on either tail. Both collect theta and lose on rising volatility while price sits near the short strikes, and both flip toward negative theta near a wing. Close early and the actual cost to close sets the result.
The gap between the condor’s short strikes forms a plateau of full profit. The butterfly sells an at-the-money straddle instead of an out-of-the-money strangle, so its full profit occurs at a single price rather than across a range. Its short options collect more gross premium, and the long-wing cost determines the net credit.
Iron condor vs iron butterfly example
The worked examples make the trade-off concrete. In the iron condor, XYZ trades at $100 and the trader sells the 95 put and 105 call while buying the 90 put and 110 call. The net credit is $2.00 per share, or $200. Both wings are $5 wide, so the maximum loss is ($5.00 − $2.00) × 100 = $300, the breakevens are $93 and $107, and the full $200 is kept anywhere between $95 and $105.
In the iron butterfly, the trader sells both the 100 put and the 100 call at the body and buys the 90 put and 110 call as wings. The at-the-money sale collects $5.40 per share, or $540. Both wings are $10 wide, so the maximum loss is ($10.00 − $5.40) × 100 = $460, the breakevens are $94.60 and $105.40, and the full $540 is earned only if XYZ pins $100 exactly. The butterfly collects more than twice the credit and offers a better maximum reward, but that reward sits on a single price while the condor pays across the full ten-point band from $95 to $105. Measure each credit against its own wing, $5 on the condor and $10 on the butterfly, before comparing dollars; the next section matches the widths.
Before entry, sum every leg’s delta, gamma, theta and vega at today’s spot: a condor or fly struck off-center starts with a directional lean, and the signs change near or beyond a wing. Check the broker’s buying-power requirement and plan for assignment cash flows on the short legs.
Iron condor vs iron butterfly at the same wing width
Match the wings at the same expiration, with 100-share contracts and no fees. Keep the 90/95/105/110 condor at $2 credit, and price a 95/100/100/105 butterfly at $3 credit. Both now have $5 wings.
| Stock at Expiration | Condor P&L | Butterfly P&L |
|---|---|---|
| $94 | +$100 | −$200 |
| $98 | +$200 | +$100 |
| $100 | +$200 | +$300 |
| $106 | +$100 | −$200 |
The matched-width butterfly has $300 maximum profit, $200 maximum expiration loss and $97/$103 breakevens. The condor keeps $200 maximum profit, $300 maximum expiration loss and $93/$107 breakevens. Changing the assumed credits changes that comparison. Fees reduce each payoff and shift its breakevens; early assignment can leave shares while other option legs remain open.
How to choose between an iron condor and an iron butterfly
Compare the proposed expiration-price distribution with each payoff, then include actual credit, wing width, costs and management. In the matched example, the condor profits across a wider interval while the butterfly earns more at the body. Another set of quotes or widths can change that result. Center a butterfly on a heavily traded strike or a gamma level only after price shows it respects that level.
Implied volatility matters to both, but especially to the butterfly. An at-the-money short straddle can collect substantial gross extrinsic value, but the protective wings and selected quotes determine the four-leg credit and current vega. A forecast IV decline is one scenario to reprice, alongside spot and elapsed time. Cboe publishes systematic benchmark versions, CNDR and BFLY. Use them as a benchmark for each structure, and price your own trade from its live strikes, quotes and costs.
Bottom line
The condor separates the short strikes and keeps maximum expiration profit across a band, while the butterfly combines them at one body and concentrates maximum profit there. Match expiry, wing width, actual credit and costs before comparing dollars at risk and breakevens. Then choose the payoff that fits the intended stock-price scenario.
Common questions
Iron Condor vs Iron Butterfly: FAQ
- Which collects more premium, an iron condor or an iron butterfly?
- The iron butterfly, at matched wing widths: both of its credit spreads start at the money, while the condor’s sit further out of the money, where the same width is worth less. On this page’s matched $5 wings, the butterfly’s $3 credit tops the condor’s $2. Across different widths, compare credit with wing width, since the worked examples collect $200 on $5 condor wings and $540 on $10 butterfly wings.
- Which has a wider profit range?
- A condor has a range of maximum profit between its separated short strikes; a butterfly has one maximum-profit price at its body. The interval with any positive profit also depends on credit and costs. In the stated examples, condor gross breakevens are $93/$107 and butterfly breakevens are $94.60/$105.40, so the condor has the wider profitable interval in that comparison.
- Is an iron butterfly riskier than an iron condor?
- Both cap loss at one wing width minus the credit, so the risk difference is the shape of the payoff. An iron butterfly needs the stock to stay tightly around one price, so its profitable window is narrow and drift erodes the credit immediately. An iron condor tolerates more movement before it loses. At matched $5 wings, the butterfly risks $200 to make $300 between $97 and $103, while the condor risks $300 to make $200 between $93 and $107.
- Can an iron condor be turned into an iron butterfly?
- Yes. In effect, moving the short strikes of an iron condor together until they meet at one strike converts it into an iron butterfly. Moving the short strikes together shrinks the maximum-profit plateau toward a single peak; the replacement credit depends on the actual quotes and long wings. Traders rarely adjust an open position that way in one step, but the two strategies sit on a continuum defined by how far apart the short strikes are placed.