Put Return Calculation Ameritrade

Put return calculation is essential for evaluating the potential profit from selling put options on Ameritrade. This guide explains the formula, provides a calculator, and offers practical interpretation of results.

What is Put Return?

Put return measures the percentage gain from selling a put option. It compares the premium received to the strike price of the option. A higher put return indicates better profitability for the seller.

Put options give the buyer the right to sell an asset at a specified price, while the seller collects the premium. The put return helps traders assess whether the premium is worth the risk of the underlying asset declining.

How to Calculate Put Return

To calculate put return, you need three key pieces of information:

Premium received from selling the put option
Strike price of the option
Number of contracts sold

The calculation involves dividing the total premium by the total strike price value, then multiplying by 100 to get a percentage.

Put Return Formula

Put Return = (Total Premium / (Strike Price × Number of Contracts)) × 100

Where:

Total Premium = Premium per contract × Number of contracts
Strike Price = The price at which the put option can be exercised
Number of Contracts = Total number of put options sold

The formula shows that put return is directly proportional to the premium received and inversely proportional to the strike price and number of contracts.

Example Calculation

Let's calculate the put return for selling 5 put options with these details:

Premium per contract: $2.50
Strike price: $150
Number of contracts: 5

Using the formula:

Total Premium = $2.50 × 5 = $12.50

Put Return = ($12.50 / ($150 × 5)) × 100 = (12.50 / 750) × 100 ≈ 1.67%

This means the put return is approximately 1.67% based on these parameters.

Interpretation of Results

A put return of 1.67% in our example suggests that for every $100 invested in strike price value, the trader earns $1.67 in premium. This is a moderate return that may be acceptable depending on market conditions and risk tolerance.

Traders should compare this return with other investment opportunities and consider factors like:

Implied volatility of the underlying asset
Time decay (theta) of the option
Probability of the stock declining to the strike price
Transaction costs and commissions

FAQ

What is a good put return percentage?

A good put return depends on market conditions. Generally, returns above 2% are considered good, while those below 1% may indicate poor profitability.

How does put return differ from put option premium?

Put option premium is the price paid to buy a put or received when selling a put. Put return converts this premium into a percentage of the strike price value, making it easier to compare profitability across different options.

Can put return be negative?

Yes, if the premium received is less than the strike price value, the put return can be negative, indicating a loss rather than a gain.