
A zero-cost collar is an options strategy that limits both downside risk and upside potential without requiring a net upfront premium, or with a very small net cost. It is usually created by buying a protective option and selling another option to fund the cost. The premium received from the sold option offsets the premium paid for protection.
Businesses and investors use zero-cost collars to hedge exposures such as stock holdings, commodity prices, interest rates, or foreign exchange rates. For example, an exporter may want protection if a currency moves unfavourably but may be willing to give up some benefit if the currency moves favourably beyond a certain level. The collar defines a range of acceptable outcomes.
A typical collar includes:
• Buy a put option to protect against downside.
• Sell a call option to finance the put premium.
• Set lower and upper price boundaries.
• Accept limited upside in exchange for reduced hedging cost.
The strategy is called zero-cost when premiums broadly offset, though transaction costs, bid-ask spreads, margin, tax, and accounting treatment can still apply.
A zero-cost collar can make hedging more affordable, but it is not risk-free. The business gains protection within a defined range but gives up upside beyond the cap. Treasury teams should evaluate whether the cap is acceptable, whether the exposure timing matches the option maturity, and whether the structure creates collateral, accounting, or disclosure obligations. It is best used when certainty is more valuable than unlimited upside.