Protective Put
Owning shares plus buying a put as insurance against declines — preserves all the upside, caps the downside at the put strike less the premium paid.
Profit / Loss Diagram
Protective Put at expiration
What is this strategy?
The Protective Put — also called a <strong>married put</strong> — is the purest hedging structure in options trading: you own 100 shares and buy 1 out-of-the-money or at-the-money put as insurance. If price falls, the put gains value, offsetting the losses on the shares. It is functionally identical to buying car insurance: you pay a fixed premium in exchange for protection against the worst case.
Unlike the Collar, which also sells a call to finance the put but caps the upside, the Protective Put preserves 100% of the shares’ upside potential. The only difference from owning the shares outright is the premium paid for the put, which is the cost of the insurance. If price rises, the put expires worthless but the gains on the shares more than compensate.
The Protective Put suits investors with large positions who want insurance against a specific event — quarterly earnings, a macro announcement, a regulatory decision — without selling the shares, which would trigger tax. It is also popular after strong rallies to lock in accumulated gains. Many institutional investors use it strategically as a hedge.
Construction
| Action | Instrument | Strike | Expiration | Example |
|---|---|---|---|---|
| OWN | 100 Shares | N/A | N/A | +100 AAPL @ $175 |
| BUY | 1 Put | ATM or slightly OTM | 30-90 DTE | +1 AAPL Jun 170 Put @ $4 |
Example
Scenario: you own 100 shares of AAPL at $175. You buy a June 170 put for $4 as insurance.
- Base Position +100 AAPL @ $175 = $17,500
- Premium Paid −$400 (+1 AAPL Jun 170 Put @ $4)
- Total Cost $17,900 (shares + put premium)
- Maximum Loss −$900 (175 − 170 + 4 = $9 × 100)
- Breakeven $179.00 (175 + 4 premium)
- Profit if AAPL = $200 +$2,100 ($25 gain − $4 premium = $21 × 100)
- Profit if AAPL = $150 −$900 (capped — the put protects the decline)
The Greeks
The shares contribute +1.0 delta per share; the long put subtracts negative delta. Net is positive but lower than shares alone.
The put loses value with time. That is the cost of the insurance: you pay every day for the protection.
If volatility rises — a more nervous market — the put appreciates. Your insurance is worth more exactly when you need it.
The long put contributes positive gamma: your protection accelerates as price falls toward the strike.
Position Management
- 01 Strike: ATM Versus OTM An ATM put protects from the first dollar of decline but costs more (4–6% of price). An OTM put 5–10% down is cheaper (1–3%) but accepts the first part of the fall unprotected. Choose by tolerance.
- 02 Expiration: the 60–90 DTE Sweet Spot Shorter puts (under 30 DTE) carry brutal theta. Longer puts (over 120 DTE) are expensive but decay slowly. 60–90 days balances both. Roll on reaching 30 DTE.
- 03 Rolling At 30 days to expiration, close the current put and buy a new one at 60–90 days. This maintains continuous protection but requires discipline and additional cost at each roll.
- 04 When to Close the Put If price rises sharply away from the strike, consider closing the put to recover part of the premium. If the downside risk has passed after an event, you may no longer need the protection.
- 05 Consider the Alternatives For cheap permanent protection: VIX calls, inverse products, or dynamic stop losses. Each carries different trade-offs in cost and effectiveness.