Protective Put
Insure a long position by buying a put — capped downside, unlimited upside.
The protective put (or married put) pairs a long position in the underlying with a long put option. The put acts as insurance: it limits your downside if the underlying crashes, while you retain full upside participation. The cost is the put premium, which slightly reduces your net returns in a flat or rising market.
Strategy Structure
Hold the underlying (long stock or 1 lot of futures) + Buy 1 Put as downside protection.
Profit & Loss Profile
Market Outlook
Bullish — wanting upside but seeking protection against a downside shock.
When to Use
- You are bullish long-term but worried about a near-term crash
- You want to protect unrealized profits without triggering a sale
- Ahead of a known high-risk event
- You prefer defined downside while keeping full upside
When to Avoid
- When IV is very high (insurance is expensive — a collar may be better)
- For very short holding periods where premium drag is large
- If you are not actually bullish (just sell the underlying instead)
- In calm, range-bound markets where protection is rarely needed
Ideal Conditions
- You hold the underlying and want to stay invested through uncertainty
- Low IV — protection is cheaper to buy
- Ahead of an event with binary risk (results, policy, elections)
- You want to lock in unrealized gains without selling
Greeks Impact
Net positive but reduced — long underlying (+1.0) plus the negative put delta. Downside delta flattens as the put gains.
Positive gamma from the long put — your effective delta improves as the underlying falls.
Negative theta — the long put decays daily; this is the ongoing cost of insurance.
Positive vega — the put gains value if IV spikes, which typically happens during the very declines you are hedging.
Nifty Example
Setup: Hold 1 lot of Nifty futures bought at 24500 (75 units). Buy Nifty 24200 PE at ₹110. Cost of insurance = ₹110 × 75 = ₹8,250. Your downside is now capped below 24200; effective breakeven = 24610.
If profitable: If Nifty rallies to 25200, futures gain 700 points (₹52,500) minus the ₹8,250 put cost = ₹44,250 net. Upside remains essentially unlimited.
If loss: If Nifty crashes to 23500, the futures lose 1,000 points (₹75,000) but the 24200 PE gains ₹700 (₹52,500). Net loss ≈ (300 + 110) × 75 = ₹30,750 — far less than the unhedged ₹75,000 loss.
Adjustments & Risk Management
- Roll the put down after a rally to reduce cost while keeping some protection
- Roll the put forward to the next expiry to maintain ongoing insurance
- Convert to a collar by selling an OTM call to finance the put
- Close the put after the feared event passes to stop the theta bleed
The Cost of Insurance
A protective put is literally an insurance policy on your position, and like any policy it has a premium cost that drags on returns when nothing bad happens. Buying a monthly Nifty put 1-2% OTM might cost 0.5-1% of the position value, which compounds into a meaningful drag if bought continuously.
Smart hedgers buy protection selectively — around binary events, when valuations look stretched, or after large unrealized gains they want to lock in — rather than carrying it permanently. The goal is to pay for insurance when the risk is real, not every single month.
Protective Put vs Collar
A protective put costs money (the put premium) but preserves unlimited upside. A collar finances the put by selling an OTM call, often reducing the cost to near zero — but it caps the upside at the call strike. The choice depends on whether you value full upside or cheaper protection.
For a strongly bullish investor who wants a crash hedge without surrendering upside, the protective put is the right tool. For a neutral-to-mildly-bullish holder who just wants cheap protection and is fine capping gains, the collar is more cost-effective.
Related Strategies
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