Paying for Downside Protection With Your Upside
Sell the upside to fund the downside, and hold stock in the band between.
Worth reading first: Covered Calls and the Upside You Sell, Buying Insurance on Shares You Own
Course catalogue99 lessons
A protective put costs roughly 13% a year to maintain. A covered call collects premium but leaves the downside wide open.
A collar is both at once: sell the call, use the proceeds to buy the put. The result is a position with a floor and a ceiling, often for close to nothing.
Floor and ceiling on 100 shares
Move the two strikes and watch the net cost approach zero. The payoff between them is ordinary stock ownership; outside them, nothing happens at all.
Move the two strikes toward each other and the net cost approaches zero, the call pays for the put. Move them apart and you keep more of the outcome but pay for the privilege. A collar is a dial between certainty and participation, not a free lunch.
Three regions
The payoff has a flat section, a diagonal section, and another flat section, which is unlike anything else in this course.
Below the put strike: the put offsets further losses. Flat.
Between the strikes: you simply own the stock. Diagonal.
Above the call strike: the short call caps you. Flat.
Floor = put strike − net cost · Ceiling = call strike − net costThe band you still participate in, and the two boundaries you have fixed.
| Stock at expiration | Result | Versus holding |
|---|---|---|
| $60 | −$840 | +$3,160 |
| $92 | −$840 | +$40 |
| $100 | −$40 | −$40 |
| $110 | +$960 | −$40 |
| $140 | +$960 | −$3,040 |
100 shares at $100. Long $92 put, short $110 call, net cost $40.
The top and bottom rows are the trade in one line: you gave away $3,040 in the strong rally to avoid losing $3,160 in the crash. Whether that is a good exchange depends entirely on how much you fear each.
When a collar is the right tool
A concentrated position you cannot or will not sell. The classic case: employee stock, a large low-basis holding, a position where selling triggers a tax event you want to defer. A collar caps the risk without realising anything.
Bridging a known event. Protection through a specific window, funded rather than paid for.
Nearing a goal. If a position has appreciated enough that you mostly want to keep it rather than grow it, a collar converts “mostly keep” into an actual guarantee.
When it is not
As an income strategy. It is not one. The call premium is spent on the put; there is nothing left over. If income is the goal, sell the call without buying the put and accept the downside. That is a covered call.
On a high-conviction long-term holding. Capping the upside on the position you most believe in is expensive in exactly the way that does not show up for years.
Permanently. A collar held indefinitely is a very complicated way of owning a bond. If the band is narrow enough to feel safe, the returns will resemble cash.
One tax note
A tight collar can be treated as substantially eliminating your risk of loss, which has consequences for holding periods and can, in some configurations, constitute a constructive sale. The rules interact with the qualified covered call tests.
This is genuinely an area to check with a professional before collaring a large low-basis position, which is, unfortunately, exactly the situation where collars are most attractive.
What can go wrong
Calling it free. Zero cash cost, real cost in forgone upside.
Using it for income. There is no net premium; that is the point.
Setting the band too narrow. You have created an expensive bond.
Ignoring the tax treatment on a large position. Constructive sale rules are real and the stakes are highest exactly where collars appeal most.
Key takeaways
- A collar is a protective put financed by a covered call: a floor and a ceiling on the same position.
- The payoff has three regions. Flat below the put, ordinary stock between, flat above the call.
- 'Zero-cost' means no cash changed hands, not that nothing was given up; you paid with the upside.
- Put skew means a genuinely zero-cost collar usually has an asymmetric band.
- It suits concentrated positions you cannot sell and bounded windows, not income, and not permanence.
Check your understanding
1. You collar 100 shares with a $92 put and a $110 call for no net cost. The stock goes to $140. What happened?
2. Why does a genuinely zero-cost collar usually have an asymmetric band?
3. Why is a collar a poor income strategy?
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