Protective Collar Using Nifty
A protective collar on a Nifty futures or large-cap equity position combined a long out-of-the-money put for downside protection with a short out-of-the-money call to finance the put premium, capping both the downside loss and the potential upside gain within a defined range.
The collar strategy was conceptually simple: an investor holding a long Nifty position or a beta-equivalent equity portfolio wanted to protect against a significant decline but was unwilling to pay the full cost of a protective put. By simultaneously selling an out-of-the-money call, the investor received premium that partially or fully offset the put cost, making the collar a near-zero-cost or zero-cost hedge in some market conditions.
The structure of a Nifty collar might involve buying a put 5% below the current index level and selling a call 5% above it, both in the same expiry month. The long put provided insurance against losses below the put strike. The short call capped gains above the call strike — if Nifty rose beyond the call strike, the short call would be exercised against the position holder, limiting upside. Between the two strikes, the position behaved like unhedged long exposure.
The cost of the collar depended on the skew of the implied volatility surface. In Indian markets, put options historically traded at a higher implied volatility than equidistant call options — a feature called negative skew or put skew — reflecting greater demand for downside protection. This skew meant that the put cost more than the equidistant call generated, resulting in a net debit unless the call strike was placed closer to the money to generate more premium.
Collars were most commonly discussed in the context of large institutional equity portfolios around risk events. Before a general election result or a Union Budget announcement, portfolio managers who were long equity but uncertain about the outcome sometimes used collars on Nifty to neutralise the tail risk while accepting a cap on near-term gains.
Collars could also be implemented as a rolling structure, where the investor established a new collar each month after the old one expired. The cumulative option cost over multiple months was an ongoing drag on returns, but the protection against severe drawdowns was considered worthwhile by many risk-conscious participants.