Glossary term
Collar
A collar is an options strategy that limits downside and upside by holding the asset, buying a put, and selling a call.
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What Is a Collar?
A collar is an options strategy that limits both downside risk and upside potential on an asset. A common equity collar combines a long stock position, a long protective put below the current price, and a short covered call above the current price.
The strategy creates a price range. The put helps protect against large losses, while the call premium helps pay for that protection. The tradeoff is that the investor gives up gains above the call strike if the call is assigned or otherwise offsets the position.
Key Takeaways
- A stock collar combines long stock, a protective put, and a covered call.
- The put limits downside below its strike price.
- The short call limits upside above its strike price.
- The call premium can reduce or offset the cost of the put.
- Collars are risk-management tools, not ways to keep unlimited upside with full protection.
How a Collar Works
Assume an investor owns 100 shares of a stock trading at $50. The investor buys a put with a $45 strike and sells a call with a $55 strike. If the stock falls sharply, the put can help limit the loss below $45 before costs and execution details. If the stock rises above $55, the short call can cap the investor's upside.
The investor has exchanged an open-ended stock position for a more defined range of outcomes. That range may be attractive when the investor wants to keep the position but reduce risk around earnings, taxes, concentration, or market volatility.
Collar Components
Component | Role |
|---|---|
Long stock | The asset being hedged |
Long put | Downside protection below the put strike |
Short call | Premium income and upside cap above the call strike |
A collar can be structured to cost money, generate a small credit, or be close to costless before transaction costs, depending on strike selection, expiration, volatility, and option prices.
Why Investors Use Collars
Collars are used to manage risk without selling the underlying asset immediately. An investor with a concentrated stock position may want protection but may not want to trigger taxes, lose voting exposure, or fully exit. A collar can create temporary downside protection while preserving some upside.
Institutions may also use collars around portfolio holdings, merger consideration, or hedging programs. The logic is the same: define a range of acceptable outcomes instead of taking full market exposure.
Tradeoffs
The main tradeoff is opportunity cost. If the stock rises far above the call strike, the investor may not participate beyond the cap. The investor also faces option timing risk. Protection lasts only until expiration unless the collar is rolled or replaced.
There are also execution and tax considerations. Option spreads, assignment risk, dividend timing, holding periods, and constructive-sale rules can affect the economics. A collar that looks simple on a payoff chart can have real-world complexity.
Collar Versus Protective Put
A protective put buys downside protection while leaving upside open. A collar adds a short call to help fund the put, but that call gives up some upside. The collar is usually cheaper than buying a put alone, but less flexible if the asset rallies.
That makes collars useful when the investor values risk reduction more than unlimited upside over the option period.
Strike selection shapes the economics. A put closer to the stock price offers more protection but usually costs more. A call closer to the stock price raises more premium but caps upside sooner. The collar is a negotiation between protection, cost, and participation.
The Bottom Line
A collar is an options strategy that defines a range of outcomes around an existing asset position. It can reduce downside risk and hedge uncertainty, but it does so by selling away part of the upside and adding option-related complexity.