Returns a list or data frame of dates suitable for structuring an option table display. The dates are used to group option data (returned by the option chains method) for a specified underlier, creating a table display.
etrd_option_expiration(
symbol = "SPY",
output = c("df", "list"),
access_tokens = NULL,
etrade_cred = NULL,
sandbox = FALSE
)The symbol in the request
Indicate whether the output should be in the form of a data frame ('df') or list ('list'). Data frame is returned by default.
Access tokens are created using
etrd_auth_access_token. This entry is not required because
the output is saved and retrieved from R options automatically.
The output created from
etrd_auth_credentials when a valid ETRADE key and secret have
been passed. This entry is not required because the output is saved and
retrieved from R options automatically.
ETRADE offers a sandbox environment for validating API calls and responses. If using the sandbox environment, this must be set to TRUE in each function called throughout etrader. ETRADE states "Sandbox responses use stored data that's intended to provide typical responses for basic use cases. So the responses you receive will not contain current data, and may not exactly match your requests in other ways." Essentially, the responses will not match the requests entered but successful pull will indicate whether the entry was valid or not.
a data frame of expiration dates for the symbol requested
if (FALSE) {
# Get SPY Expirations
etrd_option_expiration('SPY')
}