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BlogPublished June 19, 2026 · 16 min read

Protective Puts and Collars: Defensive Moves for Option Sellers

Illustration of a shield representing protective puts and collars
A protective put insures shares; a collar finances that insurance by selling a call against them.

Protective puts and collars explained: how to hedge shares from assignment, finance downside protection by selling a call, and when a premium seller turns defensive.

Premium sellers spend most of their time collecting income—until a cash-secured put gets assigned and they suddenly own stock in a falling market. That is the moment defensive structures matter.

A protective put is insurance on shares you own: it caps your downside below a chosen strike. A collar pairs that put with a covered call, using the call's premium to pay for the put—often for little or no net cost.

This guide explains protective puts and collars for option sellers: how each works, the cost trade-off, when a seller should turn defensive, and how they fit after assignment. This is education, not investment advice.

You will learn how a protective put and a collar hedge stock, and when a put seller who gets assigned should use them.

The protective put: insurance on your shares

A protective put is a long put bought against shares you own. It gives you the right to sell at the strike, so no matter how far the stock falls, your downside is capped below that level. Like any insurance, it costs a premium—and that premium is the drag you accept for the protection.

Protective put basics:

  • You own 100 shares and buy one put against them
  • Below the strike, losses are capped—the put gains as the stock falls
  • Above the strike, you keep all the upside, minus the put's cost
  • The premium paid is the price of the insurance

This is the mirror image of selling premium: here you are the buyer, paying for protection. The cost is pure extrinsic value, which decays—so a standing protective put is expensive to maintain, as theta decay works against you now.

The collar: financing the insurance

A collar solves the cost problem by selling a covered call against the same shares and using that credit to pay for the protective put. You give up upside above the call strike in exchange for downside protection below the put strike—often arranged so the call premium roughly funds the put.

Collar = long stock + protective put + short call:

  • Buy a put below the price for downside protection
  • Sell a call above the price to finance that put
  • A "zero-cost collar" picks strikes so the credit offsets the debit
  • Result — a defined band: protected below, capped above

The short-call leg is just a covered call, so a collar is a covered call plus an insurance policy. The trade-off is symmetry: you cap the upside to protect the downside.

A worked example

You were assigned 100 shares at $100 and worry about a near-term drop. With the stock at $100:

Building a collar:

  • Buy the $95 put for $1.50 → downside protected below $95
  • Sell the $108 call for $1.40 → upside capped at $108
  • Net cost: $1.50 − $1.40 = $0.10, just $10 for the contract
  • Outcome — you can't lose below $95 or gain above $108 until expiry

For $10 you turned an open-ended stock position into a defined band while you decide what to do. That is the collar's appeal after an unwanted assignment—covered in options assignment explained.

When a premium seller turns defensive

Most of the time, premium sellers are the ones being paid. But there are moments when paying for—or financing—protection is the right call, usually after a cash-secured put assigns into a weakening name or ahead of a known risk you must hold through.

Situations that call for a hedge:

  • Assigned shares you must hold but want to cap downside on
  • A concentrated position that has grown too large to risk fully
  • Holding through an event you can't avoid (earnings, a binary catalyst)
  • Locking in gains on appreciated stock without selling (and triggering tax)

A collar is also an alternative to the defensive rolls in defensive adjustments when short puts go ITM: instead of managing the option, you take the shares and cap their risk. Concentration is often the trigger—see correlation and sector concentration.

Conclusion: know the cost of protection

Key takeaways:

  • A protective put caps downside on shares you own, for a premium
  • A collar sells a call to finance the put—often near zero net cost
  • The collar's price is capped upside in exchange for a downside floor
  • Sellers turn defensive after assignment or around unavoidable risk

Educational only—not personal financial advice. More in the blog · Request access.

Frequently asked questions

What is a protective put?

A protective put is a long put bought against shares you own. It gives you the right to sell at the strike, capping your downside below that level no matter how far the stock falls, in exchange for the premium paid.

What is a collar in options?

A collar is long stock plus a protective put plus a short covered call. The call's premium helps pay for the put, creating a band: protected below the put strike, capped above the call strike.

What is a zero-cost collar?

A zero-cost collar picks the put and call strikes so the call premium received roughly offsets the put premium paid, giving downside protection for little or no net cost—at the price of capping upside.

When should a put seller use a collar?

Often after a cash-secured put assigns into a weakening stock you must hold, or ahead of an unavoidable event. The collar caps downside while you decide next steps—see options assignment.

What is the downside of a collar?

The short call caps your upside: gains above the call strike are forfeited. A collar trades away that upside in exchange for the downside protection of the put—symmetry is the cost.

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