發覺VCP有啲怪,原來 yahoo finance api 依幾日唔見左10日data

但網站又齊數. yfinance API 問題?
>>> df = pdr.get_data_yahoo('AAPL', start='2021-09-02')
[*********************100%***********************] 1 of 1 completed
>>>
>>> df
Open High ... Adj Close Volume
Date ...
2021-09-01 152.830002 154.979996 ... 152.509995 8031370000
2021-09-02 153.869995 154.720001 ... 153.649994 7117130000
2021-09-03 153.759995 154.630005 ... 154.300003 5780870000
2021-09-13 150.630005 151.410004 ... 149.550003 102404329
[4 rows x 6 columns]