f/overrides/event-backup/fstkx-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

202 lines
3.9 KiB
Plaintext

Date,Dividends
1989-03-27,0.170000
1991-12-20,1.749000
1992-12-18,2.173000
1998-12-22,0.090000
2003-12-26,0.108000
2016-12-05,0.999000
2022-06-24,0.073000
1982-06-23,0.210000
1985-03-22,0.152000
2001-03-26,0.093000
2002-12-24,0.095000
2007-06-25,0.101000
2012-06-25,0.058000
2020-12-18,0.117000
1987-12-23,0.521000
2011-09-26,0.051000
2015-03-24,0.083000
2016-12-19,0.116000
2024-12-16,0.112000
1990-12-21,0.947000
1994-03-24,0.105000
2000-12-26,0.095000
2006-11-27,4.154000
2012-03-26,0.046000
2013-03-25,0.069000
2023-09-18,0.084000
1993-06-24,0.120000
2003-06-24,0.104000
2004-09-24,0.108000
2005-11-23,7.451000
2006-12-26,0.145000
2022-03-24,0.071000
2023-12-18,0.120000
1996-09-24,0.125000
2009-12-24,0.075000
2025-06-16,0.054000
2025-09-16,0.073000
2026-06-16,0.038000
2018-03-26,0.092000
1986-09-23,0.178000
1993-12-20,0.885000
1995-09-25,0.115000
1996-12-17,4.118000
2008-03-24,0.068000
2012-12-05,1.318000
2017-12-18,0.065000
1983-12-23,0.115000
1998-09-24,0.095000
2003-12-24,0.108000
2006-03-24,0.087000
2010-09-24,0.018000
2014-12-18,0.096000
2015-09-24,0.089000
2019-03-25,0.080000
1986-03-21,0.838000
1992-09-24,0.140000
2002-06-24,0.068000
2004-06-24,0.098000
2009-03-24,0.117000
2009-12-28,0.075000
2014-06-24,0.063000
1994-12-19,0.831000
1996-03-25,0.130000
1999-09-24,0.090000
2001-06-25,0.070000
2002-09-24,0.073000
2015-12-03,1.913000
2019-12-05,0.364000
1990-06-25,0.185000
1994-06-24,0.105000
1995-03-24,0.115000
2005-03-24,0.113000
2008-12-24,0.160000
2011-12-22,0.090000
2013-09-24,0.078000
2022-12-06,3.480000
1992-06-24,0.140000
1993-03-24,0.120000
2011-06-24,0.042000
2018-09-24,0.070000
2025-12-11,1.919000
1998-11-24,3.894000
2007-09-24,0.097000
2019-06-24,0.085000
2024-09-16,0.062000
1997-03-24,0.095000
2023-12-12,0.176000
2018-06-25,0.086000
1983-03-23,0.170000
1983-06-23,0.130000
1984-09-21,0.176000
1986-06-23,0.165000
1986-12-23,0.900000
1989-12-21,2.378000
2000-09-25,0.095000
2018-12-06,2.001000
2020-06-24,0.076000
1990-03-26,0.185000
2004-12-27,0.150000
1982-09-23,0.150000
1983-09-23,0.140000
1990-09-24,0.170000
2005-06-24,0.113000
2005-12-27,0.128000
2016-06-24,0.094000
2023-06-16,0.084000
1994-09-26,0.115000
1996-06-24,0.130000
1997-06-24,0.085000
2000-03-24,0.090000
2007-03-26,0.090000
2015-12-18,0.136000
1987-09-23,0.179000
1988-03-28,0.255000
1999-06-24,0.090000
2003-09-24,0.116000
2006-06-26,0.070000
2009-06-24,0.072000
2013-06-24,0.068000
1989-06-26,0.170000
2000-11-21,2.722000
2019-12-18,0.107000
2023-03-16,0.073000
2025-12-16,0.050000
1987-06-23,0.172000
1988-09-23,0.155000
1993-09-24,0.110000
1999-12-21,0.090000
2016-09-26,0.087000
2017-06-26,0.092000
2020-09-24,0.090000
1999-03-24,0.090000
1999-11-24,2.554000
2011-03-24,0.030000
2015-06-24,0.082000
2017-12-05,2.477000
2018-12-18,0.144000
2021-03-24,0.074000
2001-09-24,0.065000
2007-12-24,0.080000
2014-03-24,0.064000
2024-06-17,0.066000
2024-12-12,4.343000
1987-03-23,0.209000
1998-03-24,0.085000
2012-09-24,0.056000
2020-03-24,0.096000
1984-03-23,0.223000
1984-12-21,0.159000
1988-03-23,0.190000
1989-09-25,0.170000
2008-09-24,0.080000
2009-09-24,0.050000
2013-12-20,0.079000
2021-12-17,0.096000
2025-03-17,0.082000
2001-12-24,0.070000
2003-03-24,0.104000
2010-06-24,0.024000
2014-09-24,0.072000
2014-12-03,2.064000
2019-09-24,0.102000
2022-12-16,0.140000
1991-03-25,0.110000
1991-06-24,0.110000
2000-06-26,0.095000
2017-03-24,0.088000
2017-09-25,0.101000
1997-12-17,7.318000
2007-11-26,5.380000
2012-12-20,0.139000
2013-12-04,3.233000
2021-06-24,0.082000
2022-09-26,0.061000
2024-03-18,0.066000
1985-12-23,0.160000
1988-06-23,0.175000
1997-09-24,0.085000
2002-03-25,0.068000
2004-03-24,0.098000
2006-09-25,0.081000
2010-12-27,0.022000
1982-12-23,0.170000
1992-03-24,0.130000
1995-06-26,0.115000
2005-09-26,0.113000
2008-06-24,0.070000
1985-09-23,0.179000
1988-12-20,0.214000
1991-09-24,0.130000
2010-03-24,0.036000
2021-12-06,5.450000
1984-06-22,0.155000
1985-06-21,0.154000
1995-12-18,2.260000
1998-06-24,0.085000
2011-12-05,2.869000
2016-03-24,0.099000
2021-09-24,0.088000
2026-03-16,0.069000