Strikes

Get a list of current or historical option strike prices for an underlying symbol.

Making Requests

Use the strikes() method on the options resource to fetch strike prices:

Output Format	Return Type	Description
JSON	Strikes	Returns a Strikes object containing strike prices (default).
CSV	Strikes	Returns a Strikes object with CSV data accessible via getCsv().
HTML	Strikes	Returns a Strikes object with HTML data accessible via getHtml().

HTML Not Yet Available

Format::HTML is included for forward compatibility, but HTML responses are not currently implemented by the Market Data API.

strikes

public function strikes(
    string $symbol,
    ?string $expiration = null,
    ?string $date = null,
    ?Parameters $parameters = null
): Strikes

Get a list of current or historical option strike prices for an underlying symbol. If no optional parameters are used, the endpoint returns strikes for every expiration in the chain.

Parameters

• symbol (string)

  The underlying ticker symbol for the options chain (e.g., "AAPL", "SPY").

• expiration (string, optional)

  Limit the lookup of strikes to options that expire on a specific date. Accepted formats: ISO 8601, Unix timestamp, spreadsheet serial number.

• date (string, optional)

  Look up a historical list of strikes from a specific previous trading day. If omitted, returns current trading day strikes (or last trading day when market is closed). Accepted formats: ISO 8601, Unix timestamp, spreadsheet serial number.

• parameters (Parameters, optional)

  Universal parameters for customizing the output format. See Parameters for details.

Returns

• Strikes

  A Strikes response object containing the list of strike prices.

Example (All Strikes)

<?php

use MarketDataApp\Client;

$client = new Client();

// Get all strikes for AAPL options
$strikes = $client->options->strikes('AAPL');

echo "AAPL Option Strikes:\n";
echo "====================\n";

// Strikes are returned for all expirations
echo "Total strikes available: " . count($strikes->strikes) . "\n\n";

// Show unique strike values
$uniqueStrikes = array_unique($strikes->strikes);
sort($uniqueStrikes);
echo "Sample strikes: " . implode(', ', array_slice($uniqueStrikes, 0, 10)) . "...\n";

Example (By Expiration)

<?php

use MarketDataApp\Client;

$client = new Client();

// Get strikes for a specific expiration date
$strikes = $client->options->strikes(
    symbol: 'AAPL',
    expiration: '2025-01-17'
);

echo "AAPL strikes for Jan 17, 2025 expiration:\n";

// Sort and display strikes
$values = $strikes->strikes;
sort($values);

foreach ($values as $strike) {
    echo "$" . number_format($strike, 2) . "\n";
}

Output

AAPL strikes for Jan 17, 2025 expiration:
$100.00
$105.00
$110.00
$115.00
...
$200.00
$205.00
$210.00

Example (Historical)

<?php

use MarketDataApp\Client;

$client = new Client();

// Get strikes as of a historical date
$strikes = $client->options->strikes(
    symbol: 'AAPL',
    expiration: '2024-01-19',
    date: '2024-01-02'
);

echo "Strikes available on 2024-01-02 for Jan 19, 2024 expiration:\n";

$values = $strikes->strikes;
sort($values);
echo implode(', ', array_map(fn($s) => '$' . $s, $values)) . "\n";

Example (CSV)

<?php

use MarketDataApp\Client;
use MarketDataApp\Endpoints\Requests\Parameters;
use MarketDataApp\Enums\Format;

$client = new Client();

// Get strikes as CSV
$strikes = $client->options->strikes(
    symbol: 'AAPL',
    expiration: '2025-01-17',
    parameters: new Parameters(format: Format::CSV)
);

echo $strikes->getCsv();

Strikes

class Strikes extends ResponseBase
{
    public string $status;
    public array $strikes;
}

Represents a list of option strike prices.

Properties

• status (string): Response status ("ok" or "no_data").
• strikes (float[]): Array of strike prices as floating-point numbers.

Methods

• getCsv(): Returns the raw CSV data (when using Format::CSV).
• getHtml(): Returns the raw HTML data (when using Format::HTML).
• isJson(): Returns true if the response contains JSON data.