Smaller bar sizes have more strict limitations, and only 7 days of 1-minute data can be retrieved. interval: Defines the size of each bar.The following are the valid values: 1d,5d,1mo,3mo,6mo,1y,2y,5y,10y,ytd,max. period: As seen before, especially useful is the value “max”.The “history” function includes lots of parameters, and knowing them is important in order to correctly interpret the data you’re receiving: # THIS CODE SNIPPET SAVES THE ENTIRE DATAFRAME IN A CSV FILE

This is not only due to request limits imposed by the server but also to loading/requesting times (it is much faster to load the data stored locally). Last but not least, it is sometimes convenient to store the retrieved data locally instead of requesting it multiple times from Yahoo.

Except for the additional “Ticker” column, the remaining columns preserves the same structure as the single asset case. It is worth mentioning that different barsizes have different limitations regarding how far back we can go in time.Īs can be seen, this resulted in a DataFrame with a single row for each symbol and minute of data available. Running the script will result in the following pandas DataFrame:īy default, yahoo returns daily data, but we can also parametrize the barsize. # GET TODAYS DATE AND CONVERT IT TO A STRING WITH YYYY-MM-DD FORMAT (YFINANCE EXPECTS THAT FORMAT)Įnd_date = datetime.now().strftime('%Y-%m-%d')Īmzn_hist = amzn.history(start='',end=end_date)

In order to get started, we have to create a Ticker instance and pass the symbol of the asset that we are interested in getting data from. These include OHLCV (Open, High, Low, Close, Volume) bars, and also dividend payments, and stock splits. One of the most critical use cases of yfinance is the possibility to access stocks (and some cryptocurrencies’) historical data. Now you should be able to follow along during the next sections! Fetch Historical Prices using yfinance You just need to open a terminal and write the following command: pip install yfinance You’ll notice that the tutorial installs “Anaconda” which is a Python distribution that comes with all the most important bells and whistles included, and PIP is among them.Īssuming that you followed the previous steps, the remainder of the installation is trivial.

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