# Loading Option Prices and Volatilities

#### Option Valuation Inputs <a href="#option_valuation_inputs" id="option_valuation_inputs"></a>

For the inputs into Molecule's option valuations models, you can either choose to:

* Load option prices and underlying prices, then system calculates implied volatilities
* Load volatilities and underlying prices

In either case, Molecule is able to interpolate linearly between strike prices.

#### Loading Option Price Surfaces <a href="#loading_option_price_surfaces" id="loading_option_price_surfaces"></a>

You can load price surfaces for the option and Molecule will calculate the implied volatilities to be used in the valuation models.

#### Via Spreadsheet

The format for loading option prices via spreadsheet is seen here.

Cell A1 is the `as_of date`

Each row below contains a single `contract start`, `put or call`, `strike price` and `option price` (settle column).

<figure><img src="https://files.helpdocs.io/56bu62syz9/articles/48xvq4904d/1752097757072/image.png" alt=""><figcaption></figcaption></figure>

#### Via API

The API endpoint for loading option price surfaces is the same as other market data:

Batch loading is available and is more efficient than multiple API calls.

Sample payload:

<figure><img src="https://files.helpdocs.io/56bu62syz9/articles/48xvq4904d/1752098010830/image.png" alt=""><figcaption></figcaption></figure>

See <https://developer.molecule.io/reference/createmark-1> for further information.

#### Loading Option Volatilties <a href="#loading_option_volatilties" id="loading_option_volatilties"></a>

Loaded vols are in the form of percentages, to be ready for input into Black-Scholes.

Data must be based on absolute strike price, not distance in or out of the money.

#### Via Spreadsheet

The format for loading option prices via spreadsheet is seen here.

Cell A1 is the `as_of date`, and cell A2 is the Molecule `product code`.

The `strikes` are across the top, the `contract start` dates are down column A, and the `volatilities` are in the body of the table.

<figure><img src="https://files.helpdocs.io/56bu62syz9/articles/48xvq4904d/1752098299765/image.png" alt=""><figcaption></figcaption></figure>

#### Via API

See <https://developer.molecule.io/reference/createvol-1> for more info