f/overrides/event-backup/dnp-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

477 lines
9.3 KiB
Plaintext

Date,Dividends
2009-09-28,0.065000
2012-09-24,0.065000
2017-03-29,0.065000
1995-07-27,0.060000
1999-06-28,0.065000
2000-11-28,0.065000
2015-03-27,0.065000
1998-12-29,0.065000
2005-10-27,0.065000
2016-10-27,0.065000
2019-05-30,0.065000
1996-10-29,0.060000
1998-09-28,0.065000
2000-05-26,0.065000
2004-09-28,0.065000
2006-11-28,0.065000
1989-11-24,0.060000
2002-12-27,0.065000
2020-07-30,0.065000
2021-03-30,0.065000
1987-11-23,0.060000
1988-04-25,0.060000
2004-06-28,0.065000
2012-07-27,0.065000
2012-11-28,0.065000
2015-01-28,0.065000
2003-05-28,0.065000
2003-12-29,0.080000
1992-10-23,0.060000
2019-04-29,0.065000
2021-11-29,0.065000
2023-10-30,0.065000
1988-12-23,0.180000
1999-08-27,0.065000
2005-02-24,0.065000
2014-08-27,0.065000
2020-08-28,0.065000
2021-08-30,0.065000
1995-05-24,0.060000
2007-09-26,0.065000
2025-08-29,0.065000
1995-06-28,0.060000
1995-08-29,0.060000
1996-08-28,0.060000
2011-06-28,0.065000
2019-06-27,0.065000
2016-03-29,0.065000
2018-02-27,0.065000
1991-01-25,0.060000
2012-02-27,0.065000
2023-12-28,0.065000
1997-02-26,0.060000
1999-12-29,0.075000
2004-02-25,0.065000
2007-11-28,0.065000
2010-03-29,0.065000
2020-01-30,0.065000
1996-09-26,0.060000
1996-11-26,0.060000
1998-10-28,0.065000
2006-04-26,0.065000
1990-04-24,0.060000
2008-07-29,0.065000
2024-01-30,0.065000
1991-05-24,0.060000
1998-11-25,0.065000
2003-06-26,0.065000
2005-06-28,0.065000
1992-02-24,0.060000
1995-01-25,0.060000
1996-07-29,0.060000
2001-11-28,0.065000
2015-06-26,0.065000
1988-06-24,0.060000
2016-02-25,0.065000
1987-09-24,0.060000
2022-04-28,0.065000
2026-05-29,0.065000
1992-03-25,0.060000
2003-10-29,0.065000
2022-07-28,0.065000
1997-08-27,0.065000
2000-10-27,0.065000
2004-01-28,0.065000
1998-01-28,0.065000
2006-01-27,0.065000
2008-01-29,0.065000
2010-01-27,0.065000
2010-07-28,0.065000
2019-03-28,0.065000
1990-01-25,0.060000
2006-02-24,0.065000
2001-04-26,0.065000
2003-08-27,0.065000
2002-09-26,0.065000
2004-05-26,0.065000
2013-11-26,0.065000
2018-04-27,0.065000
2018-05-30,0.065000
2022-05-27,0.065000
1997-12-29,0.065000
2015-02-25,0.065000
2026-07-31,0.065000
1994-05-24,0.060000
2005-01-27,0.065000
2019-09-27,0.065000
1997-11-25,0.065000
2005-09-28,0.065000
2010-10-27,0.065000
2018-03-28,0.065000
1998-06-26,0.065000
2009-10-28,0.065000
2002-05-29,0.065000
2007-03-28,0.065000
1992-04-24,0.060000
2003-04-28,0.065000
2007-07-27,0.065000
2012-06-27,0.065000
2014-12-29,0.065000
1993-06-24,0.060000
1997-09-26,0.065000
2001-09-26,0.065000
1991-12-24,0.110000
2020-06-29,0.065000
2021-07-29,0.065000
2023-02-27,0.065000
1987-04-24,0.050000
2002-04-26,0.065000
2003-11-25,0.065000
2006-06-28,0.065000
2012-05-29,0.065000
1994-11-23,0.060000
1997-04-28,0.060000
2000-04-26,0.065000
1998-02-25,0.065000
2011-11-28,0.065000
2000-02-25,0.065000
2021-02-25,0.065000
2000-12-27,0.075000
2004-11-26,0.065000
2013-05-29,0.065000
2018-12-28,0.065000
1990-02-22,0.060000
1997-03-26,0.060000
2024-09-30,0.065000
1993-09-24,0.060000
2009-05-27,0.065000
2013-09-26,0.065000
1989-04-24,0.060000
1990-07-25,0.060000
2000-03-29,0.065000
1989-07-25,0.060000
1991-07-25,0.060000
2008-06-26,0.065000
2009-02-25,0.065000
2019-01-30,0.065000
2021-04-29,0.065000
1990-10-25,0.060000
1991-04-24,0.060000
2009-08-27,0.065000
2006-07-27,0.065000
2016-12-28,0.065000
1992-05-22,0.060000
1998-04-28,0.065000
2009-07-29,0.065000
2010-05-26,0.065000
2012-04-26,0.065000
2013-02-26,0.065000
1997-06-26,0.060000
2015-07-29,0.065000
1991-02-22,0.060000
1995-12-27,0.070000
1988-08-25,0.180000
1989-08-25,0.060000
2000-08-29,0.065000
2011-09-28,0.065000
2025-10-31,0.065000
2026-01-30,0.065000
2009-06-26,0.065000
1990-03-26,0.060000
1993-02-22,0.060000
2022-11-29,0.065000
2025-03-31,0.065000
1994-09-26,0.060000
1999-01-27,0.065000
2001-07-27,0.065000
2012-03-28,0.065000
2012-10-31,0.065000
1996-04-26,0.060000
2001-01-29,0.065000
2014-05-28,0.065000
2020-03-30,0.065000
2025-06-30,0.065000
2020-04-29,0.065000
2022-09-29,0.065000
2024-10-31,0.065000
2011-04-27,0.065000
2015-11-25,0.065000
1990-11-26,0.060000
1992-07-27,0.060000
1995-04-24,0.060000
1999-02-24,0.065000
2002-07-29,0.065000
2009-11-25,0.065000
2004-07-28,0.065000
2000-07-27,0.065000
2016-08-29,0.065000
2017-04-26,0.065000
2010-02-24,0.065000
1987-07-27,0.060000
1996-01-29,0.060000
1998-05-27,0.065000
2006-08-29,0.065000
2014-10-29,0.065000
1991-03-22,0.060000
2010-11-26,0.065000
2023-03-30,0.065000
2013-03-26,0.065000
2017-08-29,0.065000
2026-06-30,0.065000
2022-12-29,0.065000
1988-10-25,0.180000
1992-06-24,0.060000
1994-01-25,0.060000
2001-10-29,0.065000
2020-05-28,0.065000
2021-01-28,0.065000
2011-12-28,0.065000
2018-09-27,0.065000
1991-06-24,0.060000
1996-06-26,0.060000
2002-02-26,0.065000
2003-09-26,0.065000
2005-05-26,0.065000
2007-04-26,0.065000
2019-02-27,0.065000
2023-05-30,0.065000
1990-12-24,0.100000
2014-07-29,0.065000
2016-07-27,0.065000
2018-07-30,0.065000
2023-08-30,0.065000
1999-05-26,0.065000
2010-04-28,0.065000
2017-07-27,0.065000
1992-12-24,0.120000
1993-11-23,0.060000
2007-05-29,0.065000
2013-10-29,0.065000
2024-12-31,0.065000
2025-05-30,0.065000
1996-05-29,0.060000
2016-01-27,0.065000
2008-12-29,0.065000
2009-12-29,0.065000
2016-04-27,0.065000
2021-12-30,0.065000
2024-05-31,0.065000
2022-08-30,0.065000
1987-02-23,0.040000
1990-05-24,0.060000
1990-09-24,0.060000
2000-06-28,0.065000
2002-08-28,0.065000
2011-05-26,0.065000
1988-07-25,0.180000
1993-07-27,0.060000
2001-06-27,0.065000
2008-08-27,0.065000
2013-01-29,0.065000
2022-02-25,0.065000
1992-01-27,0.060000
1994-12-23,0.060000
1997-10-29,0.065000
2006-12-27,0.065000
2007-10-29,0.065000
2014-01-29,0.065000
1995-10-27,0.060000
2006-03-29,0.065000
1987-03-25,0.045000
1987-10-26,0.060000
1990-08-27,0.060000
1993-04-26,0.060000
1993-12-27,0.080000
1994-02-22,0.060000
2014-02-26,0.065000
2014-09-26,0.065000
1998-03-27,0.065000
2005-04-27,0.065000
1994-07-25,0.060000
2004-04-28,0.065000
2024-03-27,0.065000
1993-01-25,0.060000
1999-09-28,0.065000
2004-03-29,0.065000
2007-01-29,0.065000
2015-10-28,0.065000
2020-12-30,0.065000
1993-11-22,0.098000
2001-05-29,0.065000
2009-04-28,0.065000
2010-09-28,0.065000
2013-07-29,0.065000
2017-11-29,0.065000
2014-11-25,0.065000
2021-09-29,0.065000
2025-04-30,0.065000
1989-06-26,0.060000
1989-09-25,0.060000
2001-03-28,0.065000
2017-02-24,0.065000
2009-03-27,0.065000
2020-09-29,0.065000
1988-01-25,0.060000
1994-04-25,0.060000
2001-02-26,0.065000
2018-08-30,0.065000
2026-02-27,0.065000
2000-09-27,0.065000
2022-10-28,0.065000
1990-06-25,0.060000
2001-12-27,0.075000
2021-10-28,0.065000
2024-04-29,0.065000
2000-01-27,0.065000
1987-12-24,0.060000
1993-10-25,0.060000
2012-12-27,0.065000
2015-08-27,0.065000
2017-06-28,0.065000
2018-01-30,0.065000
2006-10-27,0.065000
2018-11-29,0.065000
2020-02-27,0.065000
2023-11-29,0.065000
2002-06-26,0.065000
2010-08-27,0.065000
2025-11-28,0.065000
1987-08-25,0.060000
2008-10-29,0.065000
2008-11-25,0.065000
1997-01-31,0.060000
1998-08-27,0.065000
2003-03-27,0.065000
2015-09-28,0.065000
2016-05-26,0.065000
2014-04-28,0.065000
2019-12-30,0.065000
2024-06-28,0.065000
1994-08-25,0.060000
1995-02-22,0.060000
2002-11-26,0.065000
2005-11-28,0.065000
2011-03-29,0.065000
2018-10-30,0.065000
2024-02-28,0.065000
1988-11-23,0.180000
1989-10-25,0.060000
1991-11-22,0.060000
2003-01-29,0.065000
2008-04-28,0.065000
2023-07-28,0.065000
2002-03-26,0.065000
2003-02-26,0.065000
2007-08-29,0.065000
2007-12-27,0.065000
2019-07-30,0.065000
1989-12-22,0.100000
2014-06-26,0.065000
2022-03-30,0.065000
2022-06-29,0.065000
2008-02-27,0.065000
2011-10-27,0.065000
1993-03-25,0.060000
2011-07-27,0.065000
2012-01-27,0.065000
2013-12-27,0.065000
1993-05-24,0.060000
1994-06-24,0.060000
1997-07-29,0.065000
2014-03-27,0.065000
2015-05-27,0.065000
2020-11-27,0.065000
2022-01-28,0.065000
2023-09-28,0.065000
1988-02-23,0.060000
1995-03-27,0.060000
1995-11-28,0.060000
1996-03-27,0.060000
2006-05-26,0.065000
2017-12-28,0.065000
1993-08-25,0.060000
1996-02-27,0.060000
2007-02-26,0.065000
2015-12-29,0.065000
2026-04-30,0.065000
1992-09-24,0.060000
2010-12-29,0.065000
2011-02-24,0.065000
2025-02-28,0.065000
1995-09-27,0.060000
1997-05-28,0.060000
1999-10-27,0.065000
2010-06-28,0.065000
2019-11-27,0.065000
2024-08-30,0.065000
1992-11-23,0.060000
1999-03-29,0.065000
1999-07-28,0.065000
1999-11-26,0.065000
2006-09-27,0.065000
2008-05-28,0.065000
2019-10-30,0.065000
2025-12-31,0.065000
1991-09-24,0.060000
1991-10-25,0.060000
1999-01-13,0.065000
2017-01-27,0.065000
2021-05-27,0.065000
2002-10-29,0.065000
2023-01-30,0.065000
2026-03-31,0.065000
1988-03-25,0.060000
1989-03-27,0.060000
2008-03-27,0.065000
2009-01-28,0.065000
2011-01-27,0.065000
2013-08-28,0.065000
1988-05-24,0.060000
1989-05-24,0.060000
2005-12-28,0.070000
2008-09-26,0.065000
1989-01-25,0.060000
2005-07-27,0.065000
2007-06-27,0.065000
2016-09-28,0.065000
2018-06-28,0.065000
2025-01-31,0.065000
1992-08-25,0.060000
2013-04-26,0.065000
2017-05-26,0.065000
2023-04-27,0.065000
1998-07-29,0.065000
2004-10-27,0.065000
2015-04-28,0.065000
2017-09-28,0.065000
2024-07-31,0.065000
1989-02-22,0.060000
2002-01-29,0.065000
2020-10-29,0.065000
2024-11-29,0.065000
1987-06-24,0.060000
1987-05-22,0.055000
2001-08-29,0.065000
2004-08-27,0.065000
2005-03-29,0.065000
2013-06-26,0.065000
2016-11-28,0.065000
2005-08-29,0.065000
2012-08-29,0.065000
2016-06-28,0.065000
2019-08-29,0.065000
2025-07-31,0.065000
2003-07-29,0.065000
2004-12-29,0.080000
2021-06-29,0.065000
2025-09-30,0.065000
1994-03-25,0.060000
1994-10-25,0.060000
1996-12-27,0.080000
2017-10-30,0.065000
2023-06-29,0.065000
1991-08-26,0.060000
1999-04-28,0.065000
2011-08-29,0.065000