Iron Condor vs Iron Butterfly

Iron condors and iron butterflies are both four-leg, credit-based range trades. Each combines a bull put spread below spot and a bear call spread above spot. The difference is geometry: the condor separates its short put and short call strikes (a wide body). The butterfly stacks both shorts at the same middle strike (a narrow peak).

Neither predicts direction well by itself. Both express "I think realized movement will be smaller than the market prices in." Choosing between them is a tradeoff between profit zone width and how much credit you collect. Neither replaces a directional vertical when you have a strong trend view.

Liquidity and execution

When comparing structures fairly, use the same underlying, expiry, and wing width in the builder. Different widths make credit comparisons misleading. Four-leg trades need combo or staged fills with a documented max-loss plan on each partial fill.

Structure comparison

Feature	Iron condor	Iron butterfly
Short strikes	Two different (K2 put, K3 call)	One shared (K2 = K3)
Profit zone at expiry	Flat between K2 and K3	Peak at middle strike
Typical credit vs width	Lower credit per unit risk	Often higher credit at center
Pin requirement	Anywhere in the body	Near exact middle for max profit
Greek center	Two short gammas	One concentrated short gamma

Example on stock at $100:

• Condor: Short $90 put / short $110 call, long wings $85 and $115. Body from $90 to $110.
• Butterfly: Short $100 put and $100 call, wings $90 and $110. Body is a point at $100.

Worked example (illustrative credits)

Same underlying, same expiration, similar wing width $10.

Condor collects $2.00 total credit. Max profit $200 if stock between $90 and $110 at expiry. Breakevens near $88 and $112 (depends on fills).

Butterfly collects $4.00 total credit. Max profit $400 only if stock at $100. At $105, call side eats part of credit. At $110, approaching call-wing max loss.

The butterfly pays more if you pin; the condor forgives more drift inside the body.

Payoff at expiration

Stock	Condor ($90–$110 body)	Butterfly (short $100)
$100	Full credit likely	Full credit likely
$95	Often still profitable	Put side losing
$105	Often still profitable	Call side losing
$115	Call wing max loss zone	Call wing max loss zone

Greeks for these positions

Both are short volatility structures at entry:

• Delta: Near zero when centered. Condors may skew delta if wings are asymmetric. Butterflies concentrate risk at one strike.
• Theta: Positive for both. Condors may decay more slowly in the wide body; butterflies decay fastest with price sitting on the short strike.
• Vega: Negative. IV expansion hurts marks on both. See Vega explained.
• Gamma: Butterfly gamma is sharper at the middle. Condor gamma builds separately near each short strike.

Delta explained helps when you delta-hedge or compare to stock exposure.

When traders pick condor vs butterfly

Pick iron condor when	Pick iron butterfly when
You want room for drift inside a range	You expect price to finish near one strike
You prefer a higher win-rate style plateau	You accept a narrower peak for more credit
Earnings IV is high but you fear a move	You will actively manage into expiry

If you expect a large move, consider long straddle instead of either iron structure.

Risks shared by both

• Wing breach and max loss on one side.
• Assignment on short legs.
• Gap opens through a long strike.
• Four-leg commissions and slippage.
• Adjustment complexity (rolling, widening wings).

Try in ThetaViz

Model the same symbol twice:

Open iron condor builder

Then open the iron butterfly template and align wing width and expiration. Compare breakevens, credit, and net Greeks side by side.

Related guides

Overview: butterflies and condors overview. Vol: vega explained. Long vol: straddle.

Decision checklist

1. How wide a range do you need at expiry? Wide → condor. Narrow pin → butterfly.
2. What credit do you need relative to max loss? Butterflies may pay more at center but fail faster off center.
3. Will you monitor daily? Butterflies often need more attention into expiry.
4. Is IV elevated? Both benefit from selling premium; compare actual dollars at risk.

Common mistakes when comparing

• Using different wing widths on each structure and calling it "fair."
• Ignoring that butterfly max profit is a point, not a plateau.
• Switching structures mid-trade without recalculating margin.

Closing vs holding to expiration

Condors often use wider partial-profit targets because the body is wider; butterflies may need earlier exits when spot leaves the center. Neither structure rewards passive holding through large trends. Write your exit rules before entry and test them on historical marks in the builder if you save strategies.

Mark-to-market before expiration

Condors forgive drift inside the body longer than butterflies forgive leaving the center. In practice, butterflies often show higher open profit early when spot sits on the short strike, then give it back faster on a trend day. Compare both structures in the builder with identical wing width and DTE to see which mark swings more for a 1% spot bump.

Practice without capital

Open both templates on the same symbol in ThetaViz with matched wing width and DTE. Screenshot breakevens and net vega at entry, then revisit after a week of spot drift. Saved strategies and P/L makes side-by-side learning easier than memory alone.

Tax and reporting (high level)

Identical leg-count reporting issues as other four-leg trades. Not tax advice.

---

ThetaViz provides educational tools only. This guide is not investment, tax, or legal advice. Prices, margin requirements, and tax rules change. Confirm details with your broker and qualified professionals before trading.