Protective Put

What Is a Protective Put?

A protective put is an options strategy in which an investor who owns shares of a stock also buys a put option on that same stock. The put gives the holder the right, but not the obligation, to sell the shares at a set price, called the strike price, before the option expires. Its purpose is to limit how much the investor can lose if the stock falls, much as an insurance policy limits losses from an unexpected event.

How It Works

Owning the stock exposes the investor to downside: if the price drops, the shares lose value. The put offsets this. If the stock falls below the strike price, the put gains value as the stock declines, so losses below the strike are largely offset. If the stock stays above the strike, the put expires worthless, and the investor keeps the gain from the shares, minus the cost of the put.

The cost of the put is the option premium, which the buyer pays upfront. This premium is the main drawback. It reduces returns in every scenario, including when the stock rises or stays flat.

An Illustrative Example

Consider a hypothetical investor who owns 100 shares bought at 50 per share and buys one put contract covering those shares, with a strike of 45 and a premium of 2 per share. The most the investor can lose on the position is about 7 per share (the 5-point drop from purchase price to strike, plus the 2-point premium), no matter how far the stock falls. The breakeven price is 52 per share, the purchase price plus the premium. Above that level, the position earns a profit after the premium is accounted for.

These numbers are for illustration only and do not reflect any actual market conditions.

Why It Matters to Investors

A protective put is often discussed as a way of hedging a position against a sharp decline while keeping the potential for upside. Its advantages are a defined maximum loss and continued participation in gains. Its disadvantages are the recurring cost of premiums, which can add up over time, and the fact that protection lasts only until the option expires. To keep it, the investor must buy a new put. Understanding these trade-offs is central to evaluating the strategy.