Iron Condor: Two Credit Spreads That Bet on a Quiet Stock

An iron condor sells a put spread below the stock and a call spread above it, collecting a net credit and winning if the stock finishes in the range between them. This page works the payoff math on a hypothetical example, shows the defined risk on both sides, and explains why the high win rate hides a real tail risk. Research and education only — not financial advice.

What an iron condor actually is

An iron condor is a single options position built from two credit spreads sold on the same stock, for the same expiration, at the same time. Below the current price you sell a put credit spread (a bull put spread); above it you sell a call credit spread (a bear call spread). Four legs, one net credit collected up front, and one bet underneath all of it: that the stock finishes between the two spreads by expiration.

Because you are the seller on both sides, you keep the credit if the stock goes nowhere. The structure is short movement and long time — it profits from a quiet, range-bound stock and from the daily melt of theta decay working in your favor. It is the textbook "I think this thing stays boring" trade, with the risk defined and capped on both sides by the long options bought as protective wings.

The four legs, laid out

All figures here are illustrative and hypothetical, chosen to make the math legible — not a trade. Say a stock trades at $100 with 35 days to expiration:

Each spread is $5 wide. Suppose the whole four-leg package brings in a net credit of $1.50 per share — $150 for one contract of each in this hypothetical. That $150 is the most the position can ever make. Now the defined-risk part.

The payoff math: what you can win, what you can lose

• Max profit (hypothetical): the full $150 credit, kept if the stock finishes anywhere between $90 and $110 at expiration — every option expires worthless and you owe nothing.
• Max loss (hypothetical): one spread's width minus the credit: $5.00 − $1.50 = $3.50, or $350 per contract. That is all you can lose no matter how far the stock runs — the long wings are the backstop.
• Breakevens: lower = $90 − $1.50 = $88.50; upper = $110 + $1.50 = $111.50. Finish inside that band and the trade is green; outside it, red.

Only one side can ever be breached — a stock cannot close below $88.50 and above $111.50 on the same day — so the credit from the untouched spread cushions the loser. That is why an iron condor's risk is capped at a single spread's width, not both.

Why it is not free money

The iron condor's seduction is its win rate. Point the short strikes far enough apart and the stock finishes inside the band most of the time. The trap is in what those wins cost when you are wrong.

The payoff is lopsided by design

Risking $350 to make $150 means the math demands a high hit rate just to break even. Set wins against losses: at what win rate does $150 × wins equal $350 × losses? Solve it and the answer is 70% — in this hypothetical, you must win roughly seven of every ten condors just to tread water, before commissions on four legs. A hypothetical strategy with a 68% win rate that feels like a machine can still bleed money, because three losses erase seven wins.

Tail risk is the real counterparty

Where does the losing minority come from? A move big enough to blow through a short strike — an earnings gap, a guidance cut, a sector shock, a squeeze. When it happens it tends to happen fast and overnight, past the point where the position can be adjusted, and it takes close to the full $350 at once. You are, in plain terms, selling insurance against a big move: small premiums in on the calm days, one large payout on the wild one.

Two more forces work against the seller before price even moves. A spike in implied volatility inflates both short options, marking the condor at a loss on paper while the stock sits still — the position is short vega. And near expiration, gamma turns the short strikes into a hair-trigger: a small move in the last days swings the profit-and-loss far more violently than the same move would with weeks left.

The market already priced the range

The credit is not charity. The distance between the short strikes and the size of the premium are both set by implied volatility — the market's live estimate of how far the stock can travel. In effect you are paid roughly what the range risk is worth. A genuine edge exists only if the stock's realized movement comes in quieter than the implied movement you were paid for (the volatility risk premium), and that gap is a probability, never a promise.

How a disciplined desk treats it

An iron condor is not set-and-forget; it is a defined-risk position with a live tail, and it wants the same rules as any trade: a level that says the range thesis is broken, a plan for the tested side, and a time-stop so it is not held into the gamma zone on hope. On our board every idea — range or directional — ships with a trigger, profit targets, a stop, and a time-stop, posted to a public, timestamped paper/model record before the move, with the losers left up.

It is also exactly the kind of high-win-rate structure our adversarial review exists to pressure-test, because a strategy can print a gaudy win rate and still carry a profit factor below 1. Our own published hypothetical backtest of the raw scanner traded blind logged a 46.6% win rate against a 0.82 profit factor across 161 simulated trades — a reminder that win rate without the loss-size math is a story, not an edge. The signal cards and the full record are open to audit.

The 30-second recap

• An iron condor = a put credit spread plus a call credit spread on the same stock and expiration. You collect a net credit and win if the stock stays in a range.
• Defined risk: max profit is the credit; max loss is one spread's width minus the credit. Only one side can be breached, so risk is capped at a single spread.
• Not free money: the payoff is lopsided — a small credit against a larger max loss — so a high win rate is required just to break even, roughly 70% in the worked hypothetical.
• The losses come from tail moves through a short strike, plus short-vega and gamma risk near expiration. The market prices the range fairly; the only edge is realized volatility undershooting implied.

Common questions

Last updated 2026-07-11 · ClaudeQuantAlgo Research Desk · research and education only.

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