The iron condor, and the month that takes back the year

The answer

An iron condor sells a call spread above the market and a put spread below it, in the same expiry. You collect a credit and keep it if the price stays between the 2 sold strikes. The maximum loss is fixed, and it is usually 2 to 5 times the credit. The strategy wins most months. That is not the same as making money.

Why this costs you money

An iron condor is the most dangerous structure in this cluster, and the reason is not the mathematics. It is the psychology the mathematics produces.

You place 1 and it works. You place 12 and 10 or 11 of them work. Your account statement shows a steady line rising to the right, and everything you have been told about markets says that means skill. So you increase the size.

Then a month arrives where the price moves 3% in 2 sessions and the position goes to its maximum loss, which is several times the monthly credit. The year is gone, or most of it. Nothing about the world changed. The distribution always had that outcome in it and you had simply not reached it yet.

A 90% win rate is not a description of a good strategy. It is a description of where the losses have been stored.

There is a second cost, and it is constant rather than dramatic. An iron condor is 4 legs. Eight crossings of the bid-ask spread on a round trip, 4 sets of exchange charges, and securities transaction tax on the sold legs. Against a credit that might be 20% of the width, those costs are not a rounding error. They are the difference between a fair bet and a losing one.

How it works

Four legs, 1 expiry, all on the same underlying.

1. Sell a call above the current price. This is a short strike.
2. Buy a call further above. This is the upper wing.
3. Sell a put below the current price. This is the other short strike.
4. Buy a put further below. This is the lower wing.

You receive a credit, which is the difference between what you sold and what you bought.

• Maximum profit = the credit. It occurs anywhere between the 2 short strikes at expiry.
• Maximum loss = the width of 1 spread, minus the credit. It occurs at or beyond either wing.
• Break-evens = short call strike + credit, and short put strike − credit.

Two facts about the shape.

Only 1 side can lose. The price cannot finish above the upper wing and below the lower wing at the same time. That is why the margin required is the risk on 1 side, not both, and it is the structure's genuine advantage over selling a strangle.

The wings are what make the loss finite. Without them this is a short strangle with unlimited risk. The wings cost you part of the credit and they are the most important part of the position. They are also, always, the least liquid part of it.

What it costs, and what it gives up

It costs you nothing today. That is the problem. A credit arriving in your account feels like income, and income is a word that describes something earned and kept. This is neither. It is an advance against an obligation.

It gives up the ratio. The maximum loss is a multiple of the credit, always. Take a typical index condor: 200 points wide on each side, credit 60 points. Maximum loss is 140 points. That is 2.33 times the credit. Widen the wings for comfort and the ratio gets worse, not better: 500 points wide with a credit of 100 gives a maximum loss of 400, which is 4 times the credit.

It gives up your ability to be paid for being right. If you are correct for 11 months and wrong in the twelfth, you receive 11 credits and pay back 2 to 5 of them. The good outcome is capped by design and the bad outcome is capped at a much larger number.

It gives up diversification, which is what makes real insurance work. An insurance company writes thousands of policies on unrelated risks in unrelated places. An iron condor seller writes 1 policy, on 1 underlying, and repeats it. All the losses arrive in the same week, because they are all the same bet.

Who is on the other side, and why they are willing to be there

Three participants, and each answers a different part of the question.

The market maker takes the other side of all 4 legs, hedges the residual, and earns part of the bid-ask spread 4 times on entry and 4 more on exit. Your trade is their revenue whatever happens.

The buyer of your short strikes is buying protection or a directional bet. They are paying you to carry a risk they do not want. That is a real service and a real fee. The fee is small because many people compete to provide it.

The people who set the credit are the ones you should think hardest about. SEBI's own studies report that in the Indian equity derivatives segment the large majority of individual traders lose money, while proprietary firms and foreign institutional participants trading through algorithms record the offsetting gains. the September 2024 study and the January 2023 study. Those firms are the price-setters in exactly the contracts where retail condors are placed.

Now the useful frame. You are running an insurance company with 1 customer, no reserves, no reinsurance and no actuary. The premium you charge was set by somebody with all 4. The question is not whether premium selling can work. It can, and it is a real business. The question is whether your version of it has the things that make it a business rather than a streak.

The maximum loss, as a number

This is the section to read twice.

Take an index near 24,000 with a lot size of 75. the current lot size.

• Sell the 24,300 call, buy the 24,500 call.
• Sell the 23,700 put, buy the 23,500 put.
• Credit received: 60 points.

Now the numbers.

• Credit = 60 × 75 = 4,500 rupees.
• Maximum loss = (200 − 60) × 75 = 10,500 rupees.
• Margin committed is approximately the maximum loss, because the risk is defined. your broker's actual requirement, which may be higher.
• Maximum loss as a percentage of capital committed = about 100%.
• Maximum loss divided by credit received = 2.33.
• The move required to reach it = about 0.8% to the upper wing.

Read the last 2 lines together. You are risking 2.33 months of income on the index not moving 0.8% in the wrong direction. That is a normal Tuesday.

Widen it to make it feel safer. Sell 2% away, buy 3% away, and collect perhaps 25 points on a 240 point width.

• Credit = 1,875 rupees.
• Maximum loss = (240 − 25) × 75 = 16,125 rupees.
• Maximum loss divided by credit = 8.6.

Making the position safer made the ratio worse. This is always true. Selling further out reduces how often you lose and barely changes how much you lose when you do. You have bought a longer wait for the same event.

The overnight gap. This is the whole risk, and it arrives when the market is shut.

• The Nifty 50 fell sharply on 4 June 2024, having risen sharply on 3 June 2024. the exact percentages.
• The Nikkei 225 fell about 12% on 5 August 2024 and volatility spiked worldwide.
• The US volatility index roughly doubled on 5 February 2018.
• Indian and American markets repeatedly hit circuit limits during March 2020.

Every one of those events took an iron condor from its maximum profit to its maximum loss without offering a single price in between at which you could have acted. There is no stop-loss that works against a gap, because a stop-loss is an instruction to trade at a price and the price did not exist.

When it is genuinely reasonable to use

Six conditions. All of them, not most of them.

1. The maximum loss, taken today, would be boring. Not survivable. Boring. If the worst case would change your month, the position is too large.
2. You have counted the ratio and accepted it. Maximum loss divided by credit, written on the ticket.
3. You will not adjust. The common pattern in premium-selling failures is rolling a losing side out and adding size to pay for it. That converts a defined loss into an undefined one.
4. The wings are genuinely liquid. Check open interest and volume on the 2 options you bought, not the ones you sold. They are always the thinnest legs and they are what makes the loss finite.
5. Not on expiry day. Same-day condors carry the largest gamma in the market. A 0.5% move can cover the whole distance from maximum profit to maximum loss in minutes.
6. The size is set by the maximum loss, never by the margin or the credit.

If all 6 hold, an iron condor is a legitimate, defined-risk way to be paid for providing insurance in a market you understand. If any 1 fails, the structure is doing something other than what you think.

The decision rule. Divide the maximum loss by the credit received. Then ask: if this happens next month, will I still be here, and will I place the trade again the month after? If the honest answer to either part is no, the position is too large, whatever the win rate has been.

Try this now

Five minutes in your broker's strategy builder. Build it, read it, and do not place it. Almost nobody has looked at these numbers on their own screen.

1. Open the strategy or basket window. Choose a liquid index and the nearest monthly expiry.
2. Build the condor. Short call about 1.5% above the current level, long call about 2.5% above. Short put about 1.5% below, long put about 2.5% below. 1 lot on each leg.
3. Read off what the platform already displays: the net credit, the margin required, and the maximum loss.
4. Divide the maximum loss by the net credit. Write the number down. This is the number that matters and almost nobody computes it.
5. Now go to the options chain and look at the 2 legs you bought — the wings. Note the open interest and today's volume on each, and note the bid-ask spread.
6. Ask yourself 1 question about those 2 legs: if the index moved 3% before the open tomorrow, could I sell these back at a fair price?

What you should see. Step 4 usually returns something between 2 and 9. That is how many months of premium a single bad month costs you. If your win rate is 10 out of 12 and the ratio is 4, then 2 losses per year cost 8 months of credit against 10 months earned, and the transaction costs on 96 legs a year finish the job.

Step 5 is the one that changes behaviour. On a liquid index at a near expiry, the wings will show real open interest and a workable spread. Move to a further strike, a further expiry, or a single stock, and the wings often show a few hundred contracts and a spread several times wider than the short legs.

Those wings are your maximum loss. If they cannot be traded, your loss is not defined by them. It is defined by whatever the market offers you on the worst morning of the year.

Three real cases

1. Hope Advisers and Karen Bruton, 2016 — the record that was managed, not earned The Securities and Exchange Commission brought an action in May 2016 against an adviser and its principal, alleging that losses in an options-selling programme were concealed through trades placed near month end. the complaint and the eventual resolution. The programme had been widely publicised for its consistency. The point is not the allegation. It is the pressure that created it: a strategy whose entire appeal is an unbroken record is under enormous pressure to keep the record unbroken, and premium-selling losses arrive in lumps.

2. LJM Preservation and Growth Fund, February 2018 — many years, 2 days A mutual fund that sold options systematically lost the large majority of its value during the volatility event of 5 and 6 February 2018 and was subsequently liquidated. The Securities and Exchange Commission later brought proceedings concerning its risk disclosures. the exact loss percentage, the liquidation date and the case details. The fund had produced steady returns for years before that week. Nothing in its method changed. The market simply visited a part of the distribution that the method had never priced.

3. Indian markets, 3 and 4 June 2024 — the range that was not a range The index rose sharply on 3 June 2024 on early expectations and fell sharply on 4 June 2024 as results came in. the exact percentage moves. An iron condor placed the week before, with short strikes 1.5% away, was carried through both moves. Note the shape of the damage: the first day threatened the call side, the second day threatened the put side, and a trader who adjusted after day 1 would have moved their risk directly into the path of day 2. This is what makes adjustment so dangerous. It is a decision made with 1 day of information about a 2 day event.

The question that resolves it

A novice asks: how often does this win? An expert asks: how many wins does 1 loss consume, and how many losses can arrive in the same quarter? The second question has an answer you can compute today, on your own screen, in 4 minutes.

What would make this wrong

If iron condors were structurally profitable, the credit would be larger than the probability-weighted loss, and systematic condor selling would produce a reliable return net of costs. Published results of systematic short-premium strategies show long stretches of steady gains punctuated by very large drawdowns, with the long-run result depending heavily on position sizing and on whether the strategy survived the drawdowns at all. the current published series.

The honest limits.

The volatility risk premium is real. Options do, on average, cost more than the volatility that arrives, and selling that difference is a genuine business. Firms do it profitably every year.

They do it with 3 things a retail condor seller does not have: diversification across many underlyings and many risk factors, position sizes small enough that the worst historical event is an ordinary bad quarter, and the ability to remain solvent while the loss is being marked. Remove any of the 3 and the same edge becomes a source of ruin.

And there is a fair version of the counter-argument. If you size an iron condor so that its maximum loss is a small fraction of your account, place it on a liquid index, never adjust it, and accept several bad months a year, you have a defined-risk position with roughly fair odds and a small cost. That is a reasonable thing to do with a small part of a portfolio. It is not an income strategy and it should never be described as one.

Carry this

• Maximum loss divided by credit received. Compute it before every condor. It is usually between 2 and 9.
• A high win rate concentrates losses. It never removes them.
• The wings are your maximum loss. Check that they can be traded before you rely on them.
• Never adjust a losing side by adding size. That is how a defined loss becomes an undefined one.
• Size by the maximum loss, never by the credit and never by the margin.

Knowledge check

Related

• The strangle
• The butterfly spread
• The bull call spread
• Buying options versus writing options
• ← Options and derivatives