A family holds a large stake in Jharna Textiles at Rs 400. A one-year put at Rs 360 costs Rs 20, and a one-year call at Rs 460 can be sold for Rs 20. Compare protecting the stake with the put alone and with a zero-cost collar.

The collar gives the same Rs 360 floor at no cost, but it hands over every rupee above Rs 460. With the put alone the family pays Rs 20 a share, about Rs 10 crore, and its worst outcome is minus Rs 60 a share instead of minus Rs 40. The put alone comes out ahead only if Jharna ends above Rs 480. The choice turns on how much upside the family is willing to give away to avoid paying for protection.

Buying a put is buying insurance: a put optionThe right, not the obligation, to sell a share at a fixed price, the strike, on or before a date. It pays when the share falls below the strike. at Rs 360 lets the family sell at Rs 360 however far Jharna falls, for a premium of Rs 20. A collar pays for that insurance by selling someone else the upside above Rs 460: the call's Rs 20 premium cancels the put's, so the protection costs nothing up front and is paid for in gains the family gives up. It is like a homeowner who pays for flood cover by agreeing that any rise in the house's value above a certain price goes to the insurer.

Read the table in three zones. Below Rs 360, both structures stop the loss; the collar loses Rs 40 a share and the put Rs 60, the Rs 20 difference being the premium. Between Rs 360 and Rs 460, both simply follow the shares, with the put Rs 20 behind. Above Rs 460 the collar is frozen at plus Rs 60 while the put keeps rising, and the put overtakes at Rs 480. On 50 lakh shares, the put costs Rs 10 crore up front; at Rs 600 the collar's cap costs the family Rs 70 crore of gains it would otherwise have kept.

The put is 10% below the price and the call 15% above it, yet they cost the same. Downside puts usually cost more than equally distant calls, because investors pay more for protection against falls than for upside; that volatility skewThe pattern in which options with different strikes on the same share are priced at different implied volatilities, usually with downside puts the most expensive. is why a zero-cost collar normally needs a call closer to the money than the put. Check live quotes rather than assuming symmetry. The family should also know that selling the call can mean delivering shares if Jharna rises, that large holders may face disclosure and trading-window rules on options over their own company, and that tax treatment differs between the structures; confirm the current rules before acting.