f/overrides/event-backup/evn-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

329 lines
6.4 KiB
Plaintext

Date,Dividends
2015-09-09,0.075000
2022-11-09,0.041000
2023-12-08,0.038000
2002-02-07,0.084000
2002-10-07,0.093000
2008-05-08,0.066000
2008-06-06,0.066000
2009-05-07,0.070000
2024-01-11,0.046000
2021-05-12,0.048000
2001-09-06,0.068000
2006-03-08,0.075000
2007-05-08,0.066000
2010-06-08,0.079000
2021-01-13,0.048000
2001-12-06,0.077000
2005-09-07,0.084000
2008-04-08,0.066000
2016-11-09,0.060000
2024-04-10,0.046000
2016-09-08,0.060000
2018-01-11,0.054000
2020-06-10,0.048000
2000-05-04,0.069000
2004-10-06,0.099000
2006-01-06,0.075000
2006-11-08,0.066000
2007-03-08,0.066000
2023-03-10,0.041000
2009-09-08,0.076000
2011-08-08,0.083000
2012-02-08,0.083000
2020-12-10,0.048000
2025-10-14,0.051000
2014-06-06,0.075000
2014-07-08,0.075000
2018-03-09,0.054000
2002-01-07,0.077000
2002-05-07,0.086000
2007-06-07,0.066000
2010-09-08,0.079000
2011-12-08,0.083000
2022-01-12,0.048000
2023-11-10,0.038000
2006-10-05,0.066000
2024-06-13,0.046000
2001-07-05,0.063000
2009-04-08,0.070000
2010-08-06,0.079000
2019-05-10,0.047000
2024-07-11,0.051000
2026-07-14,0.051000
2002-04-05,0.083000
2003-09-04,0.096000
2010-03-08,0.079000
2020-07-10,0.048000
2020-08-12,0.048000
2025-02-13,0.051000
2001-11-07,0.071000
2011-03-08,0.083000
2019-02-08,0.047000
2019-10-10,0.047000
2020-04-09,0.043000
2014-12-09,0.075000
2017-12-08,0.054000
2002-07-03,0.086000
2004-11-04,0.099000
2006-02-08,0.075000
2010-05-06,0.079000
2014-02-06,0.075000
2022-09-09,0.048000
2023-07-12,0.038000
2000-08-08,0.062000
2004-03-04,0.099000
2011-02-08,0.083000
2016-03-09,0.071000
2017-03-09,0.058000
2005-06-07,0.094000
2014-10-08,0.075000
2015-04-09,0.075000
2021-09-10,0.048000
2026-03-13,0.051000
2021-04-09,0.048000
2004-06-04,0.099000
2008-01-08,0.066000
2015-05-07,0.075000
2017-11-10,0.054000
2019-01-11,0.047000
2003-07-07,0.093000
2005-08-08,0.084000
2009-12-08,0.076000
2023-08-10,0.038000
2024-02-12,0.046000
1999-07-01,0.069000
2003-10-07,0.099000
2012-06-07,0.078000
2004-01-07,0.099000
2007-04-05,0.066000
2015-03-10,0.075000
2016-05-10,0.063000
2025-08-13,0.051000
1999-09-03,0.069000
2001-04-05,0.062000
2007-09-06,0.066000
2009-01-08,0.070000
2025-11-13,0.051000
2024-05-10,0.046000
2025-03-13,0.051000
2025-07-11,0.051000
1999-11-05,0.069000
2003-02-06,0.093000
2015-02-10,0.075000
2017-09-08,0.054000
2022-06-10,0.048000
2004-02-06,0.099000
2011-11-08,0.083000
2025-06-13,0.051000
2004-08-05,0.099000
2005-02-07,0.099000
2018-10-10,0.047000
2026-06-12,0.051000
2003-08-07,0.096000
2005-10-06,0.084000
2008-08-07,0.070000
2014-03-06,0.075000
2018-02-09,0.054000
2010-01-07,0.076000
2020-11-10,0.048000
2005-03-07,0.099000
2007-10-05,0.066000
2015-10-08,0.071000
2017-06-08,0.054000
2019-07-10,0.047000
2019-11-08,0.047000
2020-09-10,0.048000
2021-12-10,0.048000
2006-09-07,0.066000
2012-03-08,0.083000
2013-01-08,0.078000
2014-08-07,0.075000
2018-04-11,0.054000
2025-09-12,0.051000
2001-10-03,0.071000
2006-05-08,0.075000
2014-05-08,0.075000
2019-06-12,0.047000
2020-10-09,0.048000
2023-05-10,0.041000
2001-06-07,0.063000
2006-12-07,0.066000
2009-02-06,0.070000
2019-08-09,0.047000
2022-03-10,0.048000
2021-06-10,0.048000
2024-09-13,0.051000
2024-12-12,0.051000
2003-01-07,0.093000
2005-07-07,0.084000
2006-04-06,0.075000
2012-11-08,0.078000
2020-01-10,0.047000
2010-02-08,0.079000
2007-11-07,0.066000
2017-07-11,0.054000
1999-05-05,0.069000
2002-03-07,0.084000
2009-10-07,0.076000
2011-04-07,0.083000
2012-05-08,0.078000
2019-12-11,0.047000
2000-07-06,0.062000
2010-11-08,0.079000
2012-01-06,0.083000
2012-07-06,0.078000
2016-02-09,0.071000
2026-08-13,0.051000
2000-04-06,0.069000
2016-07-07,0.063000
2018-08-10,0.054000
2023-04-12,0.041000
2026-04-14,0.051000
2003-04-07,0.093000
2017-02-09,0.058000
2017-08-09,0.054000
2020-03-11,0.047000
2000-12-07,0.062000
2001-03-07,0.062000
2013-04-08,0.078000
2021-02-10,0.048000
2002-09-05,0.093000
2017-10-11,0.054000
2018-11-08,0.047000
2022-08-10,0.048000
2010-12-08,0.083000
2013-06-06,0.078000
2015-07-09,0.075000
2015-11-10,0.071000
2022-04-08,0.048000
2002-12-05,0.093000
2013-05-08,0.078000
2002-11-07,0.093000
2003-11-06,0.099000
2005-04-07,0.099000
2009-07-08,0.070000
2022-12-09,0.041000
2017-01-11,0.058000
2009-03-06,0.070000
2011-06-08,0.083000
2012-09-06,0.078000
2013-03-07,0.078000
2014-04-08,0.075000
2003-03-06,0.093000
2010-04-08,0.079000
2013-07-08,0.078000
2017-05-09,0.054000
2001-05-07,0.062000
2013-12-06,0.075000
2018-06-08,0.054000
2023-06-09,0.041000
2001-08-08,0.068000
2005-01-06,0.099000
2020-02-12,0.047000
2021-03-10,0.048000
2022-05-11,0.048000
2003-12-05,0.099000
2008-11-06,0.070000
2012-08-08,0.078000
2023-10-11,0.038000
2013-11-07,0.075000
2023-02-10,0.041000
2018-07-11,0.054000
2022-07-08,0.048000
2025-04-11,0.051000
2000-06-07,0.062000
2000-11-08,0.062000
2007-12-06,0.066000
2011-05-06,0.083000
2016-01-12,0.071000
2018-12-12,0.047000
2004-12-07,0.099000
2008-02-07,0.066000
2013-09-06,0.075000
2015-01-08,0.075000
2015-12-09,0.071000
2004-07-07,0.099000
2009-08-06,0.076000
2010-07-08,0.079000
2019-03-08,0.047000
2000-02-08,0.069000
2011-07-07,0.083000
2013-02-07,0.078000
2014-01-08,0.075000
2025-12-12,0.051000
2015-08-11,0.075000
2023-01-12,0.041000
2000-03-08,0.069000
2001-02-07,0.062000
2004-09-08,0.099000
2006-08-08,0.075000
2012-04-09,0.078000
2014-11-10,0.075000
2019-04-10,0.047000
2019-09-12,0.047000
1999-10-01,0.069000
1999-12-08,0.069000
2000-10-04,0.062000
2005-11-08,0.084000
2008-10-08,0.070000
2021-07-09,0.048000
2007-07-06,0.066000
2008-07-08,0.066000
2024-08-12,0.051000
2026-02-13,0.051000
2026-05-14,0.051000
2008-09-08,0.070000
2009-11-06,0.076000
2011-09-08,0.083000
2012-12-06,0.078000
2020-05-08,0.043000
2016-08-09,0.060000
2016-10-11,0.060000
2017-04-11,0.058000
2026-01-14,0.051000
2009-05-21,0.070000
2024-03-08,0.046000
2024-10-11,0.051000
2003-05-07,0.093000
2021-10-08,0.048000
2007-01-08,0.066000
2007-08-08,0.066000
2016-04-07,0.063000
2018-05-10,0.054000
2021-08-11,0.048000
2011-10-06,0.083000
2012-10-09,0.078000
2014-09-10,0.075000
2002-06-06,0.086000
2005-12-08,0.084000
2006-06-08,0.075000
2006-07-06,0.075000
2007-02-08,0.066000
2000-09-07,0.062000
2005-05-05,0.094000
2013-08-08,0.078000
2024-11-08,0.051000
2025-01-13,0.051000
2025-05-13,0.051000
2003-06-05,0.093000
2011-01-06,0.083000
2015-06-09,0.075000
2021-11-10,0.048000
2022-10-12,0.041000
2016-06-09,0.063000
2018-09-13,0.047000
2022-02-10,0.048000
1999-08-04,0.069000
2000-01-06,0.069000
2004-04-07,0.099000
2004-05-06,0.099000
2008-12-08,0.070000
2023-09-08,0.038000
2016-12-08,0.058000
2001-01-05,0.063000
2002-08-07,0.091000
2008-03-06,0.066000
2010-10-06,0.079000
2013-10-08,0.075000