f/overrides/event-backup/hcn-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

214 lines
7.8 KiB
Plaintext

Date,Dividends,ctime
1992-10-28,0.47,2017-08-22 22:17:53
1985-04-30,0.3468,2018-02-07 09:51:24
1989-04-26,0.4,2017-08-22 22:17:53
1993-07-28,0.485,2017-08-22 22:17:53
2005-01-27,0.6,2017-08-22 22:17:53
2006-07-27,0.64,2017-08-22 22:17:53
1998-05-01,0.545,2017-08-22 22:17:53
1985-07-30,0.3802,2018-02-07 09:51:24
2015-05-08,0.825,2017-08-22 22:17:53
1988-01-27,0.44,2017-08-22 22:17:53
1989-07-26,0.42,2017-08-22 22:17:53
1993-10-27,0.49,2017-08-22 22:17:53
1998-07-31,0.55,2017-08-22 22:17:53
2011-05-06,0.715,2017-08-22 22:17:53
2015-08-07,0.825,2017-08-22 22:17:53
1989-10-25,0.42,2017-08-22 22:17:53
2001-01-29,0.585,2017-08-22 22:17:53
2002-07-29,0.585,2017-08-22 22:17:53
1996-10-30,0.52,2017-08-22 22:17:53
2011-02-04,0.69,2017-08-22 22:17:53
1992-04-29,0.46,2017-08-22 22:17:53
1996-07-31,0.52,2017-08-22 22:17:53
1985-10-29,0.38,2018-02-07 09:51:24
1992-07-29,0.465,2017-08-22 22:17:53
1985-01-29,0.3468,2018-02-07 09:51:24
1989-01-25,0.38,2017-08-22 22:17:53
2001-10-29,0.585,2017-08-22 22:17:53
2005-10-27,0.62,2017-08-22 22:17:53
1993-04-30,0.48,2017-08-22 22:17:53
1998-01-30,0.54,2017-08-22 22:17:53
2015-02-06,0.825,2017-08-22 22:17:53
1991-04-26,0.44,2017-08-22 22:17:53
2008-04-30,0.68,2017-08-22 22:17:53
1999-10-29,0.575,2017-08-22 22:17:53
2012-02-03,0.74,2017-08-22 22:17:53
2012-08-03,0.74,2017-08-22 22:17:53
2016-11-04,0.86,2017-08-22 22:17:53
1991-01-25,0.435,2017-08-22 22:17:53
1991-07-26,0.445,2017-08-22 22:17:53
2008-07-30,0.68,2017-08-22 22:17:53
2012-11-02,0.74,2017-08-22 22:17:53
1986-10-28,0.39,2018-02-07 09:51:24
1987-04-28,0.42,2017-08-22 22:17:53
1991-10-25,0.45,2017-08-22 22:17:53
1998-10-30,0.555,2017-08-22 22:17:53
2000-04-28,0.585,2017-08-22 22:17:53
1986-01-28,0.38,2018-02-07 09:51:24
1987-07-28,0.42,2017-08-22 22:17:53
2015-11-06,0.825,2017-08-22 22:17:53
2017-05-05,0.87,2017-08-22 22:17:53
2007-01-29,0.299,2017-08-22 22:17:53
2004-04-28,0.6,2017-08-22 22:17:53
1999-01-29,0.56,2017-08-22 22:17:53
2000-07-28,0.585,2017-08-22 22:17:53
2009-05-07,0.68,2017-08-22 22:17:53
2013-05-03,0.765,2017-08-22 22:17:53
2016-02-05,0.86,2017-08-22 22:17:53
2017-08-04,0.87,2017-08-22 22:17:53
2003-01-29,0.585,2017-08-22 22:17:53
2004-07-28,0.6,2017-08-22 22:17:53
2007-05-02,0.66,2017-08-22 22:17:53
2006-12-20,0.341,2017-10-20 09:54:16
2009-02-05,0.68,2017-08-22 22:17:53
2011-08-05,0.715,2017-08-22 22:17:53
2013-02-01,0.765,2017-08-22 22:17:53
1992-01-24,0.455,2017-08-22 22:17:53
2007-08-01,0.66,2017-08-22 22:17:53
2011-11-04,0.715,2017-08-22 22:17:53
1986-04-29,0.38,2018-02-07 09:51:24
2007-10-31,0.66,2017-08-22 22:17:53
1999-04-30,0.565,2017-08-22 22:17:53
1986-07-29,0.39,2018-02-07 09:51:24
1987-01-27,0.39,2017-08-22 22:17:53
2016-05-06,0.86,2017-08-22 22:17:53
2003-04-28,0.585,2017-08-22 22:17:53
1999-07-30,0.57,2017-08-22 22:17:53
2000-01-28,0.58,2017-08-22 22:17:53
2008-11-06,0.68,2017-08-22 22:17:53
2012-05-04,0.74,2017-08-22 22:17:53
2016-08-05,0.86,2017-08-22 22:17:53
2017-02-03,0.87,2017-08-22 22:17:53
2004-01-28,0.585,2017-08-22 22:17:53
2010-02-04,0.68,2017-08-22 22:17:53
2010-08-05,0.69,2017-08-22 22:17:53
2010-11-04,0.69,2017-08-22 22:17:53
1993-01-26,0.475,2017-08-22 22:17:53
2002-04-26,0.585,2017-08-22 22:17:53
2013-11-07,0.765,2017-08-22 22:17:53
2006-04-26,0.64,2017-08-22 22:17:53
1997-01-30,0.52,2017-08-22 22:17:53
2006-10-27,0.64,2017-08-22 22:17:53
2009-11-05,0.68,2017-08-22 22:17:53
2014-02-06,0.795,2017-08-22 22:17:53
1994-05-02,0.5,2017-08-22 22:17:53
2000-10-27,0.585,2017-08-22 22:17:53
2009-08-06,0.68,2017-08-22 22:17:53
2013-08-02,0.765,2017-08-22 22:17:53
1994-01-31,0.495,2017-08-22 22:17:53
1988-04-26,0.44,2017-08-22 22:17:53
1997-05-01,0.525,2017-08-22 22:17:53
1997-10-30,0.535,2017-08-22 22:17:53
2001-04-27,0.585,2017-08-22 22:17:53
2006-01-27,0.62,2017-08-22 22:17:53
2014-05-08,0.795,2017-08-22 22:17:53
2014-11-06,0.795,2017-08-22 22:17:53
1988-07-26,0.44,2017-08-22 22:17:53
2005-04-27,0.62,2017-08-22 22:17:53
1997-07-31,0.53,2017-08-22 22:17:53
2001-07-27,0.585,2017-08-22 22:17:53
2010-05-06,0.68,2017-08-22 22:17:53
2014-08-07,0.795,2017-08-22 22:17:53
1988-10-25,0.38,2017-08-22 22:17:53
2002-01-29,0.585,2017-08-22 22:17:53
2005-07-27,0.62,2017-08-22 22:17:53
1995-01-30,0.515,2017-08-22 22:17:53
1995-08-02,0.52,2017-08-22 22:17:53
2003-10-30,0.585,2017-08-22 22:17:53
2002-10-29,0.585,2017-08-22 22:17:53
1990-01-25,0.43,2017-08-22 22:17:53
2004-10-28,0.6,2017-08-22 22:17:53
1994-10-31,0.51,2017-08-22 22:17:53
1996-05-01,0.52,2017-08-22 22:17:53
1994-08-01,0.505,2017-08-22 22:17:53
1996-01-31,0.52,2017-08-22 22:17:53
1987-10-28,0.42,2017-08-22 22:17:53
1990-04-26,0.43,2017-08-22 22:17:53
1990-07-26,0.43,2017-08-22 22:17:53
2008-01-29,0.66,2017-08-22 22:17:53
1995-05-01,0.52,2017-08-22 22:17:53
1990-10-25,0.43,2017-08-22 22:17:53
2003-07-29,0.585,2017-08-22 22:17:53
1995-11-01,0.52,2017-08-22 22:17:53
2017-11-06,0.87,2017-11-07 10:58:03
1987-10-28,0.42,2017-11-07 10:58:03
1990-04-26,0.43,2017-11-07 10:58:03
1990-07-26,0.43,2017-11-07 10:58:03
2008-01-29,0.66,2017-11-07 10:58:03
1995-05-01,0.52,2017-11-07 10:58:03
1990-10-25,0.43,2017-11-07 10:58:03
1995-08-04,0.52,2018-02-07 09:51:24
1995-05-01,0.52,2018-02-07 09:51:24
1990-10-25,0.43,2018-02-07 09:51:24
2003-07-29,0.585,2017-11-07 10:58:03
1995-11-01,0.52,2017-11-07 10:58:03
2018-02-12,0.87,2018-02-26 21:44:31
2011-11-04,0.715,2018-02-26 21:44:31
1986-04-29,0.38,2018-02-26 21:44:31
2007-10-31,0.66,2018-02-26 21:44:31
1999-04-30,0.565,2018-02-26 21:44:31
1986-07-29,0.39,2018-02-26 21:44:31
1987-01-27,0.39,2018-02-26 21:44:31
2016-05-06,0.86,2018-02-26 21:44:31
2003-04-28,0.585,2018-02-26 21:44:31
1999-07-30,0.57,2018-02-26 21:44:31
2000-01-28,0.58,2018-02-26 21:44:31
2008-11-06,0.68,2018-02-26 21:44:31
2012-05-04,0.74,2018-02-26 21:44:31
2016-08-05,0.86,2018-02-26 21:44:31
2017-02-03,0.87,2018-02-26 21:44:31
2004-01-28,0.585,2018-02-26 21:44:31
2010-02-04,0.68,2018-02-26 21:44:31
2010-08-05,0.69,2018-02-26 21:44:31
2010-11-04,0.69,2018-02-26 21:44:31
1993-01-26,0.475,2018-02-26 21:44:31
2002-04-26,0.585,2018-02-26 21:44:31
2013-11-07,0.765,2018-02-26 21:44:31
2006-04-26,0.64,2018-02-26 21:44:31
1997-01-30,0.52,2018-02-26 21:44:31
2006-10-27,0.64,2018-02-26 21:44:31
2009-11-05,0.68,2018-02-26 21:44:31
2014-02-06,0.795,2018-02-26 21:44:31
1994-05-02,0.5,2018-02-26 21:44:31
2000-10-27,0.585,2018-02-26 21:44:31
2009-08-06,0.68,2018-02-26 21:44:31
2013-08-02,0.765,2018-02-26 21:44:31
1994-01-31,0.495,2018-02-26 21:44:31
1988-04-26,0.44,2018-02-26 21:44:31
1997-05-01,0.525,2018-02-26 21:44:31
1997-10-30,0.535,2018-02-26 21:44:31
2001-04-27,0.585,2018-02-26 21:44:31
2006-01-27,0.62,2018-02-26 21:44:31
2014-05-08,0.795,2018-02-26 21:44:31
2014-11-06,0.795,2018-02-26 21:44:31
1988-07-26,0.44,2018-02-26 21:44:31
2005-04-27,0.62,2018-02-26 21:44:31
1997-07-31,0.53,2018-02-26 21:44:31
2001-07-27,0.585,2018-02-26 21:44:31
2010-05-06,0.68,2018-02-26 21:44:31
2014-08-07,0.795,2018-02-26 21:44:31
1988-10-25,0.38,2018-02-26 21:44:31
2002-01-29,0.585,2018-02-26 21:44:31
2005-07-27,0.62,2018-02-26 21:44:31
1995-01-30,0.515,2018-02-26 21:44:31
1995-08-02,0.52,2018-02-26 21:44:31
2003-10-30,0.585,2018-02-26 21:44:31
2002-10-29,0.585,2018-02-26 21:44:31
1990-01-25,0.43,2018-02-26 21:44:31
2004-10-28,0.6,2018-02-26 21:44:31
1994-10-31,0.51,2018-02-26 21:44:31
1996-05-01,0.52,2018-02-26 21:44:31
1994-08-01,0.505,2018-02-26 21:44:31
1996-01-31,0.52,2018-02-26 21:44:31
2017-11-06,0.87,2018-02-26 21:44:31
1987-10-28,0.42,2018-02-26 21:44:31
1990-04-26,0.43,2018-02-26 21:44:31
1990-07-26,0.43,2018-02-26 21:44:31
2008-01-29,0.66,2018-02-26 21:44:31
1995-08-04,0.52,2018-02-26 21:44:31
1995-05-01,0.52,2018-02-26 21:44:31
1990-10-25,0.43,2018-02-26 21:44:31
2003-07-29,0.585,2018-02-26 21:44:31
1995-11-01,0.52,2018-02-26 21:44:31