Data Correction History and Known issues

Data Correction History

Correction DateTarget APIAffected PeriodDescription
June 29, 2026Stock Prices (OHLC)-

Following the addition of rights issues to the price adjustment targets, adjusted prices and trading volumes that were not correctly adjusted for past rights issues have been corrected.


Affected issue codes: 17730, 33180, 37500, 38320, 38560, 45410, 57210, 63970, 69930, 77780, 94780

January 23, 2026Outstanding Short Selling Positions ReportedNovember 7, 2013 - January 13, 2026

Minor errors caused by floating-point operations have been corrected, and the values have been normalized to four decimal places.

  • ShrtPosToSO(Ratio of Short Positions to Shares Outstanding)
  • PrevRptRatio(Ratio of Short Positions in Previous Reporting)
May 2, 2025Financial Data (Summary only)-Corrected the data overall.
September 20, 2024Options (OHLC)January 4, 2010 - March 20, 2014Corrected morning/afternoon session OHLC values for index options
September 20, 2024Futures (OHLC)From 2010 onwardsCorrected Day Session OHLC values for index futures

Known Issues

This section describes currently known issues and problems.

Date AddedTarget APIDescriptionWorkaroundDate Resolved
None

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