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상장일 초기 시세가 누락되어 있습니다. #27

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QuantKang opened this issue Jan 23, 2024 · 0 comments
Open

상장일 초기 시세가 누락되어 있습니다. #27

QuantKang opened this issue Jan 23, 2024 · 0 comments

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@QuantKang
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상당히 많은 종목의 상장 초기 시세가 누락되어 있습니다.

예를 들어, 동원금속(018500)의 상장일은 1995-11-10입니다. marcap 데이터셋에는 1995-11-15일부터 데이터가 포함되어 있습니다.

marcap_df[marcap_df.Code == '018500']
DatetimeIndex(['1995-11-15', '1995-11-16', '1995-11-17', '1995-11-23',
               '1995-11-24', '1995-11-25', '1995-11-27', '1995-11-30',
               '1995-12-01', '1995-12-04',
               ...
               '2023-12-14', '2023-12-15', '2023-12-18', '2023-12-19',
               '2023-12-20', '2023-12-21', '2023-12-22', '2023-12-26',
               '2023-12-27', '2023-12-28'],
              dtype='datetime64[ns]', name='Date', length=7049, freq=None)
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