Есть ли ошибка в данных Yahoo Finance Eurostoxx?

Question

Open, Close, Adj Close одинаковы для более ранних дат

    import yfinance as yf

    # Choose inputs
    #assets = '^FTSE ^STOXX50E ^GSPC HISFX'
    assets = '^STOXX50E'
    start_date = '2019-01-01'
    end_date = '2019-10-24'

    # Import data
    data = yf.download(assets, start_date, end_date)

    # Review data
    print('Data Shape: ', data.shape)
    print('Data Head', data.head(3))
    print('Data Tail', data.tail(30))

    data