f/overrides/event-backup/crf-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

353 lines
6.9 KiB
Plaintext

Date,Dividends
2020-06-12,0.176471
2003-06-11,1.294118
2012-09-12,0.384314
2013-12-11,0.356863
2018-10-12,0.225490
2009-08-12,0.619608
2014-01-13,0.341176
2021-12-14,0.150980
2022-07-14,0.169608
2004-05-12,1.380392
2010-05-12,0.474510
2014-11-12,0.341176
2017-02-13,0.224510
1993-07-19,2.274510
2010-02-10,0.474510
2012-08-13,0.384314
2017-06-13,0.224510
1989-12-18,3.058824
2002-11-13,1.294118
2007-03-13,1.396078
2007-09-12,1.396078
2022-05-13,0.169608
2023-06-14,0.114706
2000-12-20,2.352941
2001-10-17,1.960784
2012-11-13,0.384314
2016-09-13,0.273529
2013-03-13,0.356863
2015-03-12,0.325490
2019-08-14,0.195098
1992-10-19,2.431373
1994-10-17,1.960784
1997-04-16,2.196078
2003-01-13,1.294118
2019-10-11,0.195098
2023-08-14,0.114706
2006-09-13,1.380392
2006-12-13,1.380392
2010-04-13,0.474510
2012-01-11,0.384314
2003-03-12,1.294118
2005-05-11,1.380392
2017-12-14,0.224510
1998-04-15,1.803922
2005-01-12,1.380392
2012-02-13,0.384314
2025-02-14,0.114706
2001-07-18,1.960784
2011-06-13,0.435294
1994-12-19,2.196078
2010-10-13,0.474510
2017-03-13,0.224510
2022-06-09,0.169608
2011-09-13,0.435294
2017-08-16,0.224510
2020-12-14,0.176471
2012-06-13,0.384314
2015-10-13,0.325490
2019-09-13,0.195098
1993-10-18,2.196078
2004-04-13,1.380392
2007-04-11,1.396078
2008-11-12,1.270588
1991-04-12,2.745098
2010-07-13,0.474510
2019-12-13,0.195098
2024-12-16,0.101961
2025-11-14,0.117000
2003-08-13,1.294118
2010-11-10,0.474510
2014-06-11,0.341176
2018-02-14,0.225490
2005-12-13,1.380392
2008-04-11,1.270588
2015-12-11,0.325490
2022-12-14,0.169608
1997-07-16,2.039216
2002-04-11,1.294118
2007-10-11,1.396078
1998-07-22,2.117647
2020-03-13,0.176471
2008-03-12,1.270588
2009-12-11,0.619608
2014-08-13,0.341176
2017-07-12,0.224510
2011-04-13,0.435294
2023-11-14,0.114706
2024-01-12,0.101961
2024-03-14,0.101961
1993-04-19,2.431373
1999-04-21,1.960784
2005-11-10,1.380392
2007-02-13,1.396078
2025-08-15,0.117000
1994-07-18,1.960784
2004-10-13,1.380392
2011-11-10,0.435294
2013-06-12,0.356863
2015-01-13,0.325490
1990-04-12,2.666667
2004-06-14,1.380392
2005-07-13,1.380392
2011-07-13,0.435294
2006-11-13,1.380392
2008-02-13,1.270588
2010-08-11,0.474510
2013-08-13,0.356863
1997-12-17,2.901961
2002-06-12,1.294118
2005-04-13,1.380392
2006-08-11,1.380392
2016-02-10,0.273529
2016-11-10,0.273529
2025-05-15,0.117000
2021-09-14,0.150980
2023-01-13,0.114706
1991-07-12,2.745098
2003-09-11,1.294118
2006-06-13,1.380392
2007-06-13,1.396078
2017-01-11,0.224510
2017-10-12,0.224510
2018-05-14,0.225490
2023-12-14,0.114706
1996-04-17,2.196078
2003-04-11,1.294118
2009-04-13,0.619608
2013-04-11,0.356863
2025-07-15,0.117000
2026-01-15,0.118000
1995-07-19,2.039216
2016-04-13,0.273529
2025-04-15,0.114706
2013-09-12,0.356863
2014-12-11,0.341176
2017-09-14,0.224510
2023-10-13,0.114706
2018-09-13,0.225490
2026-03-16,0.118000
2013-10-10,0.356863
2014-04-11,0.341176
2014-07-11,0.341176
2017-04-11,0.224510
2014-10-10,0.341176
2018-07-13,0.225490
2019-04-12,0.195098
2020-09-14,0.176471
1992-12-21,3.764706
1995-04-17,2.039216
2002-09-12,1.294118
2003-05-13,1.294118
2024-05-14,0.101961
2011-08-11,0.435294
2012-04-11,0.384314
2024-02-14,0.101961
1996-12-18,2.980392
2005-06-13,1.380392
2006-10-11,1.380392
2007-05-11,1.396078
2024-06-14,0.101961
2026-02-17,0.118000
2014-09-11,0.341176
2021-06-14,0.150980
2021-11-12,0.150980
2022-03-14,0.169608
2010-01-13,0.474510
2010-03-11,0.474510
2013-07-11,0.356863
2021-02-12,0.150980
1996-07-17,2.039216
2007-07-11,1.396078
2008-10-10,1.270588
2009-10-13,0.619608
2021-10-14,0.150980
2011-05-11,0.435294
2015-06-11,0.325490
2016-10-13,0.273529
2019-01-14,0.195098
1987-12-04,3.529412
2002-10-10,1.294118
2003-02-12,1.294118
2009-09-11,0.619608
2022-01-13,0.169608
2025-12-15,0.117000
2014-03-12,0.341176
2020-10-14,0.176471
2021-01-14,0.150980
2026-06-15,0.118000
2003-10-10,1.301961
2005-08-11,1.380392
2005-09-13,1.380392
2007-11-13,1.396078
2014-05-13,0.341176
2022-08-12,0.169608
2025-10-15,0.117000
2000-04-18,1.960784
2002-07-11,1.294118
2008-05-13,1.270588
2008-12-11,1.270588
1997-10-22,2.039216
2019-07-12,0.195098
2026-04-15,0.118000
2020-05-14,0.176471
2025-06-16,0.117000
1988-06-06,2.196078
1998-10-21,2.039216
2018-01-12,0.225490
2018-04-12,0.225490
2025-01-15,0.114706
2006-03-13,1.380392
2008-08-13,1.270588
2015-07-13,0.325490
2015-09-11,0.325490
2025-03-14,0.114706
1988-12-12,2.823529
1989-10-13,2.666667
1991-12-19,3.137255
2007-08-13,1.396078
2020-04-14,0.176471
2022-10-13,0.169608
2008-01-11,1.270588
2012-03-13,0.384314
2013-02-13,0.356863
2013-11-20,0.356863
1990-12-19,3.529412
2008-07-11,1.270588
2010-09-13,0.474510
2013-05-13,0.356863
2020-08-13,0.176471
1990-10-12,2.745098
1999-10-20,1.960784
2011-03-11,0.435294
2020-07-14,0.176471
2016-07-13,0.273529
2017-11-14,0.224510
2019-02-14,0.195098
2021-07-14,0.150980
1994-04-18,1.960784
2002-02-13,1.294118
2009-01-13,0.619608
2009-07-13,0.619608
2026-08-14,0.118000
1989-03-13,2.588235
2009-11-10,0.619608
2015-08-12,0.325490
2026-07-15,0.118000
1992-07-20,2.431373
2006-02-13,1.380392
2012-12-12,0.384314
2024-04-12,0.101961
2024-09-16,0.101961
1999-12-21,2.039216
2000-10-18,1.960784
2015-04-13,0.325490
2023-04-13,0.114706
2012-07-12,0.384314
2015-05-13,0.325490
2016-03-11,0.273529
2018-08-16,0.225490
1999-07-21,2.062745
2002-12-11,1.294118
2005-10-12,1.380392
2006-05-11,1.380392
2024-08-15,0.101961
1989-06-12,2.588235
1992-04-20,2.666667
2014-02-12,0.341176
2023-03-14,0.114706
2021-05-13,0.150980
2021-08-13,0.150980
2022-11-14,0.169608
1995-12-20,2.588235
2010-12-13,0.474510
2015-11-10,0.325490
2016-08-11,0.273529
2012-05-11,0.384314
2018-03-14,0.225490
2023-05-12,0.114706
2012-10-11,0.384314
2020-02-13,0.176471
2021-04-09,0.150980
2023-02-14,0.114706
2001-04-25,1.960784
2004-09-13,1.380392
2004-12-13,1.380392
2011-12-13,0.435294
2002-08-13,1.294118
2005-03-11,1.380392
2008-06-11,1.270588
2021-03-12,0.150980
2006-07-12,1.380392
2009-03-11,0.619608
2010-06-11,0.474510
2011-01-12,0.435294
1988-09-12,2.431373
1993-12-20,4.470588
2002-05-13,1.294118
2006-01-11,1.380392
2011-10-12,0.435294
2018-11-14,0.225490
2019-05-14,0.195098
2023-07-13,0.114706
2020-01-14,0.176471
2024-07-15,0.101961
2024-10-15,0.101961
1990-07-13,2.666667
2016-05-12,0.273529
2016-06-13,0.273529
2016-12-13,0.273529
2009-02-11,0.619608
2011-02-11,0.435294
2022-02-14,0.169608
2000-07-19,1.960784
2003-11-12,1.294118
2004-07-13,1.380392
2007-01-10,1.396078
2016-01-13,0.273529
2023-09-14,0.114706
2003-07-11,1.294118
2004-01-13,1.380392
2004-03-11,1.380392
2009-06-11,0.619608
1998-12-16,2.117647
2002-03-13,1.294118
2020-11-13,0.176471
2009-05-13,0.619608
2022-09-14,0.169608
1988-03-07,2.588235
2004-02-11,1.380392
2004-11-10,1.380392
2006-04-11,1.380392
2015-02-11,0.325490
2017-05-11,0.224510
2024-11-15,0.101961
2026-05-15,0.118000
2005-02-11,1.380392
2008-09-11,1.270588
2013-01-11,0.356863
2025-09-15,0.117000
2018-12-13,0.225490
2019-03-14,0.195098
2019-11-14,0.195098
2003-12-11,1.380392
2004-08-11,1.380392
2007-12-12,1.396078
2018-06-14,0.225490
2022-04-08,0.169608
1991-10-11,2.745098
1995-10-18,2.117647
1996-10-16,2.039216
2019-06-13,0.195098