f/overrides/event-backup/lbndx-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

462 lines
9.0 KiB
Plaintext

Date,Dividends
1995-03-09,0.073000
1998-04-07,0.065000
2009-07-31,0.039000
1982-10-15,0.270000
2000-02-07,0.063000
2001-05-09,0.063000
2018-07-31,0.069000
2022-08-31,0.031000
1999-10-06,0.063000
1997-07-08,0.065000
1996-11-07,0.070000
2006-04-07,0.043000
2006-05-09,0.043000
2011-10-31,0.040000
2026-06-30,0.037000
1981-10-16,0.270000
2014-12-22,0.165000
2005-11-09,0.043000
2006-11-08,0.043000
2011-08-31,0.040000
2019-12-31,0.025000
2021-02-26,0.024000
2003-11-07,0.043000
2024-05-31,0.036000
1985-01-11,0.300000
2007-05-08,0.043000
2014-09-30,0.033000
1982-04-16,0.270000
2005-10-07,0.043000
2010-10-29,0.039000
1995-12-07,0.073000
2018-03-29,0.030000
2021-07-30,0.023000
2022-05-31,0.032000
2012-11-30,0.039000
2007-02-06,0.043000
1986-07-11,0.300000
2005-09-08,0.043000
2011-02-28,0.040000
2012-09-28,0.040000
2013-01-31,0.037000
2015-07-31,0.088000
2016-08-31,0.035000
2022-04-29,0.027000
2005-03-09,0.043000
1994-06-07,0.073000
2006-02-08,0.043000
2011-01-31,0.038000
2011-09-30,0.041000
2015-05-29,0.028000
2022-10-31,0.024000
2004-08-20,0.050000
2020-08-31,0.026000
2002-09-06,0.050000
1996-02-06,0.073000
2013-09-30,0.036000
1989-10-13,0.260000
1989-01-13,0.260000
1999-08-06,0.063000
2009-08-31,0.038000
2011-06-30,0.041000
2014-12-31,0.031000
2016-05-31,0.030000
2025-08-29,0.036000
1988-04-15,0.260000
2002-04-05,0.056000
2004-05-07,0.043000
2008-03-06,0.043000
2012-12-31,0.039000
2017-03-31,0.031000
2017-06-30,0.029000
2020-02-28,0.025000
1984-01-13,0.290000
1996-08-07,0.070000
2002-02-07,0.056000
2008-10-07,0.043000
2011-12-30,0.040000
1984-04-13,0.290000
2018-12-18,0.084000
2024-07-31,0.035000
2025-05-30,0.036000
2008-11-06,0.043000
2010-08-31,0.042000
2014-03-31,0.033000
2004-12-08,0.043000
1999-11-08,0.063000
2003-04-09,0.046000
2012-08-31,0.039000
2017-05-31,0.030000
2022-07-28,0.013000
1991-04-12,0.240000
2000-03-07,0.063000
1998-02-06,0.065000
2008-07-08,0.043000
2025-04-30,0.036000
2004-01-09,0.043000
2008-08-06,0.043000
1996-07-09,0.073000
2010-01-29,0.038000
2021-06-30,0.024000
1993-07-15,0.220000
1996-04-04,0.073000
2007-04-10,0.043000
2009-04-07,0.043000
2017-08-31,0.029000
2020-11-30,0.025000
2023-12-29,0.033000
2024-02-29,0.034000
1993-04-23,0.240000
2002-08-08,0.050000
2008-04-08,0.043000
2017-04-28,0.030000
2000-05-08,0.063000
2013-12-31,0.035000
2002-11-07,0.050000
2010-09-30,0.041000
2019-07-31,0.027000
1982-01-15,0.270000
2001-02-07,0.063000
2005-07-08,0.043000
2013-07-31,0.054000
1995-11-07,0.073000
2004-08-06,0.043000
2025-06-30,0.035000
1999-05-06,0.063000
2001-11-07,0.056000
2002-07-11,0.050000
2003-05-08,0.046000
2012-06-29,0.041000
2024-04-30,0.035000
1996-12-06,0.070000
2013-11-29,0.034000
2016-04-29,0.029000
2007-10-09,0.043000
1990-04-16,0.260000
1992-10-23,0.240000
1997-04-08,0.065000
2000-06-06,0.063000
2009-12-31,0.036000
1984-10-12,0.300000
2016-01-29,0.029000
1997-11-06,0.065000
2015-02-27,0.030000
2016-02-29,0.030000
2023-10-31,0.032000
1987-04-10,0.280000
1996-01-05,0.073000
1991-07-19,0.240000
2015-12-31,0.030000
2018-04-30,0.029000
2009-05-07,0.043000
2003-03-07,0.046000
2016-09-30,0.031000
1999-12-13,0.063000
1987-07-10,0.280000
1995-02-07,0.073000
2008-01-08,0.043000
2022-01-31,0.022000
1985-10-11,0.300000
2015-06-30,0.029000
2025-12-31,0.036000
2000-08-07,0.063000
2005-06-08,0.043000
2023-08-31,0.031000
1995-05-09,0.073000
2014-01-31,0.033000
1999-04-06,0.063000
2005-01-07,0.043000
2018-09-28,0.030000
1988-10-14,0.260000
2019-06-28,0.027000
1998-03-06,0.065000
1998-10-07,0.063000
2009-05-29,0.032000
2025-01-31,0.036000
1998-12-04,0.063000
1997-03-07,0.070000
2009-07-06,0.037000
1996-05-09,0.073000
1986-01-10,0.440000
1994-12-06,0.073000
2007-03-09,0.043000
2010-02-26,0.035000
2013-08-30,0.036000
2017-01-31,0.030000
1981-01-16,0.240000
2000-12-06,0.063000
2016-03-31,0.030000
2020-12-31,0.023000
1998-11-06,0.063000
2001-04-05,0.063000
2023-07-31,0.030000
2005-12-08,0.043000
2017-12-29,0.029000
2023-11-30,0.032000
2010-03-31,0.036000
2006-03-09,0.043000
2019-05-31,0.027000
2021-03-31,0.023000
2025-03-31,0.037000
1991-10-11,0.240000
1997-12-08,0.065000
2007-06-08,0.043000
2015-09-30,0.028000
2020-01-31,0.026000
2021-08-31,0.023000
1997-06-09,0.065000
2004-10-07,0.043000
2008-05-07,0.043000
1994-08-05,0.073000
2024-03-28,0.034000
2012-01-31,0.039000
2003-06-06,0.043000
2006-10-06,0.043000
2015-01-30,0.030000
2020-05-29,0.028000
2025-07-31,0.036000
1988-01-15,0.260000
2010-12-31,0.040000
2024-06-28,0.035000
1988-07-15,0.260000
2004-07-08,0.043000
2010-11-30,0.041000
2014-07-31,0.066000
2015-03-31,0.029000
2016-12-30,0.032000
2002-12-06,0.046000
2009-01-06,0.043000
2007-07-10,0.043000
2017-09-29,0.028000
1997-09-08,0.065000
1992-04-20,0.240000
2007-12-07,0.043000
2012-10-31,0.039000
2022-02-28,0.024000
2023-01-31,0.027000
2024-08-30,0.035000
1990-07-27,0.260000
2017-12-15,0.049000
2017-07-31,0.029000
1996-06-07,0.073000
1998-07-07,0.063000
1998-12-07,0.063000
2020-04-30,0.029000
1996-03-07,0.073000
1987-01-16,0.290000
1993-10-22,0.220000
2003-08-07,0.043000
1981-04-10,0.250000
2011-11-30,0.042000
2020-09-30,0.025000
2026-07-31,0.036000
1983-10-14,0.280000
2000-07-06,0.063000
2020-06-30,0.027000
2024-12-31,0.036000
2026-04-30,0.037000
1992-07-16,0.240000
2026-05-29,0.037000
2008-02-06,0.043000
2001-03-07,0.063000
2017-02-28,0.030000
2019-02-28,0.029000
1998-08-07,0.063000
2021-05-28,0.025000
2026-01-30,0.037000
2004-02-06,0.043000
2010-06-30,0.035000
2012-03-30,0.041000
2012-04-30,0.038000
2015-08-31,0.029000
2023-06-30,0.029000
2024-11-29,0.035000
2002-06-06,0.050000
2013-06-28,0.037000
2020-03-31,0.028000
2001-10-10,0.056000
1999-01-08,0.063000
2009-12-03,0.037000
2011-05-31,0.041000
1989-04-14,0.260000
2001-12-06,0.056000
1995-01-10,0.073000
1990-10-12,0.260000
1999-07-07,0.063000
2001-09-06,0.056000
2018-11-30,0.031000
1983-01-14,0.270000
2010-05-28,0.040000
2014-02-28,0.033000
1996-10-07,0.070000
2003-12-11,0.043000
2016-10-31,0.029000
1998-09-08,0.063000
2002-03-07,0.056000
2013-03-28,0.037000
1999-03-08,0.063000
1989-07-14,0.260000
2007-01-05,0.043000
2007-08-07,0.043000
2019-08-30,0.027000
2013-04-30,0.037000
2018-05-31,0.030000
2021-09-30,0.023000
1987-10-16,0.270000
2010-04-30,0.036000
2011-04-29,0.038000
2025-02-28,0.037000
2005-02-08,0.043000
1999-06-08,0.063000
2000-04-05,0.063000
2000-09-06,0.063000
2000-11-07,0.063000
2018-01-31,0.028000
1980-01-11,0.240000
1996-12-05,0.070000
2002-10-10,0.050000
2022-03-31,0.027000
2023-04-28,0.029000
2025-10-31,0.036000
1982-07-16,0.270000
1994-11-04,0.073000
2006-01-06,0.043000
2016-07-29,0.032000
1984-07-13,0.300000
2001-08-08,0.059000
2006-08-08,0.043000
2013-10-31,0.035000
2015-04-30,0.029000
2018-10-31,0.032000
2022-09-30,0.026000
1996-09-06,0.070000
2003-01-09,0.046000
2003-10-09,0.043000
2008-12-05,0.043000
2011-07-29,0.040000
2014-06-30,0.034000
1986-10-17,0.290000
2001-06-06,0.059000
2007-09-07,0.043000
2013-05-31,0.036000
2026-02-27,0.037000
1994-04-07,0.073000
2003-09-11,0.043000
2004-04-08,0.043000
2008-09-05,0.043000
2021-12-31,0.022000
1998-05-06,0.063000
1983-07-14,0.280000
2016-11-30,0.031000
2005-04-08,0.043000
2025-09-30,0.035000
1980-10-10,0.230000
1995-06-08,0.073000
1981-07-10,0.260000
2012-07-31,0.039000
2013-12-18,0.155000
2014-05-30,0.032000
2017-10-31,0.028000
2018-02-28,0.029000
2020-07-31,0.026000
1993-01-22,0.240000
1995-08-08,0.073000
1990-01-12,0.260000
2014-11-28,0.029000
2009-03-06,0.043000
2014-08-29,0.033000
2020-10-30,0.024000
2024-01-31,0.034000
2001-07-11,0.059000
1998-01-06,0.065000
2006-06-08,0.043000
1995-04-07,0.073000
2004-11-05,0.043000
2014-04-30,0.033000
1997-08-07,0.065000
2018-12-31,0.031000
2009-09-30,0.035000
2014-10-31,0.030000
2018-08-31,0.029000
2023-09-29,0.031000
1992-01-10,0.240000
2007-11-07,0.043000
2021-12-17,0.030000
2004-03-09,0.043000
2004-09-08,0.043000
2012-05-31,0.040000
2022-12-30,0.029000
1995-12-06,0.073000
2009-02-05,0.043000
2023-02-28,0.028000
2026-03-31,0.038000
2001-01-04,0.063000
1994-10-06,0.073000
2009-11-04,0.037000
2015-10-30,0.028000
2017-11-30,0.027000
2021-01-29,0.023000
1985-04-12,0.300000
2006-12-08,0.043000
2009-11-30,0.038000
2021-11-30,0.024000
2023-05-31,0.030000
2006-07-07,0.043000
1999-02-08,0.063000
1999-09-08,0.063000
2002-05-09,0.056000
2011-03-31,0.041000
2013-02-28,0.038000
2016-06-30,0.030000
2019-04-30,0.028000
1983-04-14,0.270000
1995-09-07,0.073000
2015-11-30,0.030000
2019-03-29,0.029000
1991-01-11,0.260000
2019-11-29,0.025000
2004-06-08,0.043000
2022-06-30,0.028000
2024-09-30,0.035000
1997-01-07,0.070000
1999-12-06,0.063000
2003-07-09,0.043000
2008-06-05,0.043000
1994-01-21,0.220000
1997-10-07,0.065000
2002-01-04,0.056000
1997-05-08,0.065000
1998-06-05,0.063000
2021-04-30,0.024000
2022-11-30,0.027000
1994-05-06,0.073000
1997-02-06,0.070000
2005-05-10,0.043000
2010-07-30,0.038000
2021-10-29,0.023000
2023-03-31,0.030000
1980-04-11,0.230000
1986-04-11,0.300000
1994-07-07,0.073000
1995-10-06,0.073000
2005-08-09,0.043000
2006-09-07,0.043000
2019-01-31,0.030000
2024-10-31,0.034000
1985-07-12,0.300000
1997-12-05,0.065000
2000-10-06,0.063000
2003-02-06,0.046000
2012-02-29,0.040000
2019-10-31,0.026000
1995-07-07,0.073000
2000-01-05,0.063000
2018-06-29,0.029000
1994-09-06,0.073000
1994-12-07,0.073000
2019-09-30,0.026000
2022-07-29,0.030000
2025-11-28,0.035000
1980-07-11,0.230000