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Get Historical Financial Data For a Given Symbol

Source: R/get_yahoo_data.R
get_yahoo_data.Rd

Get historical financial values associated with a ticker symbol. The data includes open stock price, high, low, close, volume, along with timestamps.

Usage

get_yahoo_data(
  symbol = "AAPL",
  start_date = NULL,
  end_date = NULL,
  range = "1d",
  .verbose = T
)

Arguments

symbol

character - A character string representing the symbol for the financial instrument (e.g., "AAPL" for Apple).

start_date

character - A character string representing the start date in R date format (UTC time). If NULL, data starts from 1970-01-01.

end_date

character - A character string representing the end date in a valid R date format (UTC time). If NULL, data is retrieved up to the current date.

range

character - A character string representing the range for the returned datas : default will return daily values.

Valid range values
"1d", "5d", "1mo", "3mo", "6mo", "1y", "2y", "5y", "10y", "ytd" and "max"
.verbose

logical If TRUE, messages are displayed, e.g., when invalid symbols are detected.

Value

A data.frame containing the historical financial data with the following columns:

open

numeric The opening price for the period (default is each day).

close

numeric The closing price for the period (default is each day).

low

numeric The lowest price for the period (default is each day).

high

numeric The highest price for the period (default is each day).

volume

integer The traded volume.

timestamp

integer Unix timestamps corresponding to each data point.

date

POSIXct The day of the financial data point.

currency

character The currency in which the data is reported, depending on the marketplace.

symbol

character The stock or financial instrument symbol (e.g., "AAPL").

shortname

character The abbreviated name of the company or financial instrument.

longname

character The full name of the company or financial instrument.

exchangename

character The name of the exchange marketplace where the financial instrument is listed.

fullexchangename

character The full name of the exchange marketplace.

timezone

character The timezone in which the data is reported.

gmtoffset

integer The UNIX timestamp of difference between the market local time and the GMT time.

regularMarketPrice

numeric The actual price if market is open, or last closing price if not.

fiftyTwoWeekLow

numeric Lowest price for the last 52 weeks.

fiftyTwoWeekHigh

numeric Highest price for the last 52 weeks.

regularMarketDayHigh

numeric The highest price of the day (local exchange place day).

regularMarketDayLow

numeric The lowest price of the day (local exchange place day).

Details

The default data.frame have a line for each day. If the user provide another range than '1d' (one day), lines will be filtered out, in order to match the desired range. Valid ranges are: "1d", "5d", "1mo", "3mo", "6mo", "1y", "2y", "5y", "10y", "ytd", and "max".

The function allows the user to specify a date range using start and end dates. If no date range is specified, it retrieves all available data from the beginning of time (default for start) to the current date (default for end).

References

Source : https://query1.finance.yahoo.com/v8/finance/chart/

Examples

if (FALSE) { # \dontrun{
data <- get_yahoo_data(symbol = "SAAB-B.ST", start_date = "2020-01-01", range = "1d")
} # }