Comparison · Reviewed 6 September 2026
Collars and protective puts both hedge downside—collars also cap upside to reduce or eliminate hedge cost.
A protective put is full insurance that preserves unlimited gains. A collar is reduced-cost insurance that limits gains. Use protective puts if you expect further rallies; use collars if you want to lock in existing gains without selling.
Protective put mechanics (reminder)
You own 100 shares at $100/share ($10,000 position). Buy a put at $95 strike ($2 premium = $200 cost). Unlimited upside, protected downside, but costs $200.
Collar mechanics
Same 100 shares at $100. Buy a put at $95 strike ($2 cost) and sell a call at $105 strike ($2 credit). Net cost: $2 − $2 = $0 (zero-cost collar). You're protected below $95 but capped at $105.
- Stock at $100: Both options expire worthless. Portfolio: $10,000. No hedge cost. Neutral outcome.
- Stock at $95: Put is at-the-money, call expires OTM. Portfolio: $9,500 (protected). You kept your downside protection with zero cost.
- Stock at $105: Call is at-the-money, put expires OTM. Portfolio: $10,500 (capped). Upside limited to $5/share gain ($500). Gain: 5%.
- Stock at $110: Call is $5 ITM. Shares assigned at $105. Portfolio: $10,500 (forced sale). Missed the extra $5 gain. Without collar: $11,000 (10% gain).
- Stock at $80: Put is $15 ITM. Protected at $95. Portfolio: $9,500. Avoided $2,000 loss. Protection worth it.
Cost comparison
| Strategy | Put Cost | Call Credit | Net Cost | Downside Protection | Upside Cap |
|---|---|---|---|---|---|
| Protective Put | $200 | $0 | $200 | Full (at $95) | Unlimited |
| Zero-Cost Collar | $200 | $200 | $0 | Full (at $95) | Capped (at $105) |
| Low-Cost Collar | $200 | $150 | $50 | Full (at $95) | Capped (at $107) |
Scenario: Massive Rally
Stock rallies from $100 to $120.
Protective put: Portfolio value: $12,000. Less $200 insurance cost = $11,800 gain (18%). Full upside captured minus insurance drag.
Collar: Shares called away at $105. Portfolio value: $10,500. Gain: $500 (5%). You missed $1,500 in extra gains (12% foregone). Collar limited your profit, but cost zero.
Trade-off evident: Protective put wins in bull markets but costs $200. Collar costs nothing but caps your gain.
Scenario: Moderate Decline
Stock falls from $100 to $85.
Protective put: Put protects at $95. Portfolio value: $9,500. Net loss: $500 (5%). Insurance paid for itself many times over.
Collar: Put protects at $95. Call expires worthless. Portfolio value: $9,500. Net: $0 cost. Same protection, free. Collar is clearly better here.
Why use a collar?
Collars are ideal when:
- You've had a massive unrealized gain ($100 → $150) and want to lock it in without selling.
- You believe the stock is fairly valued at the call strike and additional upside isn't critical.
- You don't want to pay for insurance (puts are expensive) but need downside protection.
- You're near retirement and want to preserve gains with minimal drag.
- Tax implications: you want to defer a sale (letting the call be assigned later can align with tax planning).
Why use a protective put?
Protective puts are ideal when:
- You expect the stock to rally further and want unlimited upside.
- You're bullish but uncertain and want insurance against a crash.
- Implied volatility is low (puts are cheap), making insurance cost-effective.
- You have a specific price target above the call strike and want to capture it.
- You don't want to be forced to sell (collars force assignment).
Practical scenario: Founder holding concentrated stock
Situation: You founded a company, and your shares are now worth $500,000 at $100/share. You're wealthy on paper but concentrated. You want to protect your gain but believe the company will grow to $150–$200/share.
Use protective puts: Buy puts at $80 (protect half your gain). Cost: ~$15,000 annually. You preserve upside potential and can capture the $150–$200 rally. Insurance is expensive but worth it for conviction on further upside.
Practical scenario: Retired investor with winning stock
Situation: You bought Apple at $50 10 years ago. It's now $200. You're retired and live off the dividend. You want to protect your gain but don't need further capital appreciation.
Use a collar: Buy puts at $150 (protect $50 of gain) and sell calls at $230. Zero cost or small credit. If Apple rallies to $230, you're called away and lock in a 360% gain. If it falls to $150, you're protected. You keep the dividend and have free insurance.
Assignment risk and tax implications
Protective put: Assignment is unlikely (you'd exercise the put to sell at the strike). You control when you exit.
Collar: If the stock rallies past the call strike, you're forced to sell (assignment). This creates a taxable event and might trigger short/long-term capital gains depending on timing. Coordinate with your tax advisor on timing.
Rolling collars over time
If your stock is called away, you can "roll" the collar higher: close the current collar and open a new one at higher strikes. Rolling costs fees but lets you maintain protection while capturing more upside. Protective puts can also be rolled but at recurring cost.
Frequently asked questions
What is a collar?
You own stock, buy a protective put, and sell a call above the current stock price. The call premium offsets the put cost, often creating a zero-cost or low-cost hedge. The trade-off: your upside is capped at the call strike. Below the put strike, you're protected.
How is a collar different from a protective put?
A protective put preserves unlimited upside but costs premium. A collar eliminates hedge cost by capping upside with a short call. You're protected downside but must sell the stock (or accept assignment) if the call is exercised.
When would I use a collar?
When you've had a major gain in a stock and want to lock it in without selling. Use collars if you believe the stock is fairly valued and additional upside isn't critical. Collars are ideal for protecting gains with zero out-of-pocket cost.
When would I use a protective put instead?
When you expect the stock to rally further and don't want to cap gains. Use protective puts if you're bullish but want insurance against a crash. You're willing to pay premium to keep unlimited upside.
Can a collar be zero-cost?
Often yes. If the call premium exactly matches the put premium, the collar is free. However, this requires you to accept a call strike where the premium matches the put cost. The collar 'width' (call strike minus put strike) determines the cost.
What happens if the stock rallies past the call strike?
Your shares are called away (assigned) at the call strike. You must sell, locking in a gain but missing further upside. This can be a tax event and forces a decision: let shares go or roll the call higher (which might cost money).
Disclaimer: This comparison is educational only and is not investment or hedging advice. Collars involve options, assignment risk, and tax implications. Before implementing either strategy, consult a qualified financial advisor and tax professional to ensure alignment with your financial goals and tax situation.