f/overrides/event-backup/nxp-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

411 lines
8.0 KiB
Plaintext

Date,Dividends
2008-03-12,0.057000
1996-03-13,0.077000
2000-09-13,0.075000
2006-04-11,0.057000
2006-09-13,0.057000
2012-09-12,0.057000
2014-12-11,0.051000
2004-08-11,0.059000
2005-08-11,0.057000
2008-04-11,0.057000
2014-03-12,0.053000
2001-05-11,0.073000
2005-10-12,0.057000
2008-02-13,0.057000
2012-07-11,0.060000
2018-08-14,0.046000
2018-10-12,0.046000
1992-08-10,0.079000
2000-05-11,0.075000
2023-06-14,0.049000
2023-11-14,0.049000
2001-11-13,0.071000
2004-05-12,0.061000
2005-11-10,0.057000
2013-11-13,0.052000
2015-11-10,0.046000
2017-01-11,0.046000
1993-05-10,0.079000
2001-03-13,0.073000
1995-12-13,0.077000
1998-05-13,0.075000
2006-02-13,0.057000
2011-12-13,0.063000
2020-03-12,0.046000
1994-07-11,0.079000
1994-10-07,0.079000
2002-12-11,0.234000
1995-01-09,0.079000
1999-02-10,0.075000
2016-10-12,0.046000
2017-06-13,0.046000
2017-07-12,0.046000
2025-06-13,0.052000
2026-04-15,0.054000
1996-01-10,0.077000
2013-03-13,0.053000
2006-10-11,0.057000
2022-07-14,0.046000
2025-11-14,0.054000
1996-04-11,0.077000
2006-03-13,0.057000
2015-04-13,0.048000
2019-04-12,0.046000
2024-08-15,0.052000
2025-05-15,0.052000
2025-12-15,0.054000
1993-09-09,0.079000
2004-11-10,0.059000
2008-05-13,0.057000
2012-04-11,0.060000
2012-08-13,0.060000
2017-03-13,0.046000
2023-02-14,0.049000
1998-03-11,0.075000
2007-09-12,0.057000
2013-08-13,0.052000
2017-10-12,0.046000
1999-05-12,0.075000
2010-07-13,0.060000
2007-07-11,0.057000
2009-07-13,0.057000
2009-09-11,0.060000
2011-07-13,0.060000
2016-02-10,0.046000
2016-12-13,0.050000
1992-11-06,0.079000
1997-04-11,0.077000
2017-11-14,0.046000
2024-05-14,0.049000
1995-06-13,0.079000
1999-03-11,0.075000
1999-04-13,0.075000
2001-08-13,0.073000
2001-10-11,0.071000
2005-01-12,0.057000
1993-06-09,0.079000
1993-07-09,0.079000
2009-06-11,0.057000
2014-01-13,0.053000
1999-08-11,0.075000
1999-09-13,0.075000
2005-04-13,0.057000
2011-03-11,0.060000
2015-06-11,0.048000
2020-07-14,0.046000
1996-06-12,0.077000
1997-08-13,0.075000
2023-10-12,0.049000
2020-09-14,0.046000
2022-02-14,0.046000
2004-02-11,0.061000
2013-01-11,0.052000
2014-04-11,0.053000
2014-09-11,0.053000
2015-10-13,0.046000
2025-07-15,0.052000
2001-02-13,0.075000
2001-07-11,0.073000
2025-08-15,0.052000
1994-11-08,0.079000
2000-08-11,0.075000
2010-02-10,0.060000
2010-11-10,0.060000
2013-04-11,0.052000
2020-04-14,0.046000
1993-03-09,0.079000
1994-04-11,0.079000
2004-04-13,0.061000
2018-07-12,0.046000
2022-11-14,0.046000
2002-05-13,0.071000
2002-06-12,0.071000
2012-01-11,0.060000
2012-06-13,0.060000
1997-09-11,0.075000
2011-04-13,0.060000
1997-02-12,0.077000
1999-07-13,0.076000
2016-06-13,0.046000
2017-12-14,0.054000
2020-05-14,0.046000
1994-02-09,0.079000
1994-03-09,0.079000
2009-08-12,0.057000
2013-06-12,0.052000
1995-04-07,0.079000
1998-09-11,0.075000
1998-12-11,0.075000
2014-10-10,0.053000
2014-11-12,0.053000
2015-02-11,0.049000
2019-07-12,0.046000
2022-08-12,0.046000
1995-03-09,0.079000
1998-10-13,0.075000
2024-10-15,0.052000
2024-06-14,0.052000
2024-09-13,0.052000
2007-04-11,0.057000
2007-12-12,0.057000
2009-05-13,0.057000
2011-02-11,0.060000
2016-07-13,0.046000
2017-09-14,0.046000
1996-09-11,0.077000
2003-12-11,0.167000
2019-02-14,0.046000
2026-02-13,0.054000
1996-08-13,0.077000
2002-09-11,0.068000
2006-05-11,0.057000
2010-10-13,0.060000
2012-11-13,0.057000
2016-01-13,0.046000
1992-06-09,0.079000
1993-10-08,0.079000
2019-11-14,0.046000
2007-10-11,0.057000
2008-01-11,0.057000
2008-09-11,0.057000
2016-09-13,0.046000
2018-01-11,0.046000
2021-01-14,0.046000
2000-12-13,0.075000
2001-12-12,0.094000
2003-04-11,0.062000
2007-06-13,0.057000
2013-09-11,0.053000
2022-01-14,0.046000
2023-03-14,0.049000
1997-11-12,0.075000
2002-02-13,0.071000
2004-03-11,0.061000
2012-03-13,0.060000
2020-02-13,0.046000
2021-09-14,0.046000
2021-11-12,0.046000
2025-02-14,0.052000
1995-07-12,0.079000
1996-05-13,0.077000
2004-01-13,0.061000
2007-01-10,0.057000
2012-10-11,0.057000
2026-05-15,0.054000
1998-08-12,0.075000
2002-10-10,0.068000
2005-02-11,0.057000
2009-12-11,0.076000
2011-11-10,0.060000
2018-02-14,0.046000
2026-01-15,0.054000
1997-12-11,0.075000
2000-01-12,0.075000
1998-06-11,0.075000
1998-11-10,0.075000
2009-11-10,0.060000
2018-05-14,0.046000
1995-11-13,0.077000
1996-07-11,0.077000
2004-06-14,0.059000
2004-10-13,0.059000
2011-08-11,0.060000
1993-02-08,0.079000
1999-10-13,0.075000
1999-11-10,0.075000
2003-07-11,0.062000
2003-09-11,0.061000
2014-07-11,0.053000
2019-06-13,0.046000
2023-04-13,0.049000
1992-09-09,0.079000
1995-08-11,0.079000
2008-06-11,0.057000
2011-01-12,0.060000
2013-10-10,0.052000
2025-10-15,0.054000
1993-12-09,0.079000
1999-01-13,0.075000
2003-02-12,0.065000
2007-05-11,0.057000
2009-02-11,0.057000
2021-03-12,0.046000
1995-05-09,0.079000
1997-03-12,0.077000
1998-01-13,0.075000
2000-11-13,0.075000
2005-05-11,0.057000
2005-07-13,0.057000
2009-03-11,0.057000
2017-08-11,0.046000
1993-04-08,0.079000
1997-06-11,0.075000
2024-04-12,0.049000
2007-08-13,0.057000
2008-11-12,0.057000
2015-07-13,0.048000
2019-09-12,0.046000
2019-10-11,0.046000
2021-07-14,0.046000
2001-01-10,0.075000
2007-02-13,0.057000
2022-04-13,0.046000
2023-01-12,0.049000
2010-04-13,0.060000
2018-06-14,0.046000
2002-04-11,0.071000
2002-08-13,0.071000
2021-10-14,0.046000
1993-01-11,0.079000
2003-10-10,0.061000
2022-12-14,0.046000
2009-10-13,0.060000
2012-02-13,0.060000
2015-09-11,0.046000
2016-08-11,0.046000
2021-08-12,0.046000
2023-07-13,0.049000
1999-12-13,0.075000
2002-11-13,0.068000
2025-03-14,0.052000
2014-02-12,0.053000
2003-08-13,0.062000
2006-07-12,0.057000
2022-03-14,0.046000
2024-02-14,0.049000
2000-10-11,0.075000
2011-10-12,0.060000
2011-06-13,0.060000
2011-09-13,0.060000
2014-05-13,0.053000
2017-04-11,0.046000
2020-06-12,0.046000
2021-02-11,0.046000
2006-06-13,0.057000
2006-11-13,0.057000
2026-07-15,0.054000
2003-01-13,0.065000
2004-09-13,0.059000
2005-03-11,0.057000
2007-03-13,0.057000
2010-12-13,0.060000
2016-05-11,0.046000
1994-01-10,0.079000
1994-05-09,0.079000
2021-04-14,0.046000
2010-01-13,0.060000
2020-11-12,0.046000
2021-12-02,0.046000
2024-07-15,0.052000
1997-07-11,0.075000
2003-05-13,0.062000
2005-06-13,0.057000
2010-09-13,0.060000
2012-12-12,0.067000
2020-08-13,0.046000
2021-05-13,0.046000
2025-01-15,0.052000
1993-11-08,0.079000
2000-06-13,0.075000
2026-08-14,0.054000
2020-01-14,0.046000
2022-05-12,0.046000
1992-10-08,0.078000
1996-02-13,0.077000
1994-06-09,0.079000
2008-12-11,0.057000
1997-01-13,0.077000
2005-09-13,0.057000
2018-11-14,0.046000
2024-12-13,0.052000
1994-08-09,0.079000
1994-12-09,0.079000
2024-01-11,0.049000
2024-11-15,0.052000
1996-11-13,0.077000
2006-08-11,0.057000
2008-10-10,0.057000
2013-07-11,0.052000
2019-08-14,0.046000
1992-12-09,0.079000
1995-10-11,0.079000
2002-01-11,0.071000
2022-06-14,0.046000
2026-03-13,0.054000
1995-09-13,0.079000
2000-04-12,0.075000
2017-02-13,0.046000
2006-12-13,0.057000
2010-05-12,0.060000
2014-06-11,0.053000
2014-08-13,0.053000
2015-12-11,0.052000
2016-11-10,0.046000
1998-04-13,0.075000
2001-06-13,0.073000
2023-08-14,0.049000
2023-12-14,0.049000
2026-06-15,0.054000
2018-04-12,0.046000
2022-10-13,0.046000
2003-06-11,0.062000
2004-07-13,0.059000
2004-12-13,0.159000
2006-01-11,0.057000
2008-07-11,0.057000
2012-05-11,0.060000
1997-10-10,0.075000
2002-07-11,0.071000
2018-12-13,0.046000
2022-09-14,0.046000
2013-05-13,0.052000
2015-05-13,0.048000
2023-05-12,0.049000
2023-09-14,0.049000
1992-07-09,0.079000
1995-02-09,0.079000
2015-01-13,0.049000
2019-05-14,0.046000
1996-12-11,0.077000
1999-06-11,0.075000
2010-03-11,0.060000
2013-12-11,0.058000
2016-03-11,0.046000
2025-04-15,0.052000
1993-08-09,0.079000
1996-10-10,0.077000
2013-02-13,0.052000
2000-03-13,0.075000
2002-03-13,0.071000
2019-12-12,0.046000
2020-12-14,0.046000
2000-07-12,0.075000
2019-03-14,0.046000
2003-11-12,0.061000
2007-11-13,0.057000
2015-03-11,0.048000
2015-08-12,0.048000
2016-04-13,0.046000
2020-10-14,0.046000
1998-02-11,0.075000
2001-04-10,0.073000
2024-03-14,0.049000
2018-03-14,0.046000
2019-01-14,0.046000
2025-09-15,0.054000
1998-07-13,0.075000
2008-08-13,0.057000
2005-12-13,0.057000
2009-01-13,0.057000
2017-05-11,0.046000
2018-09-13,0.046000
2021-06-14,0.046000
1997-05-13,0.075000
2003-03-12,0.062000
2010-06-11,0.060000
2010-08-11,0.060000
2011-05-11,0.060000
2000-02-11,0.075000
2009-04-13,0.057000