f/overrides/event-backup/anagx-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

432 lines
8.4 KiB
Plaintext

Date,Dividends
2000-05-19,0.047000
2001-12-20,0.041000
2005-06-20,0.039000
2012-12-07,0.086000
1995-02-28,0.081000
1997-08-20,0.052000
2018-06-29,0.016000
1992-12-31,0.090000
2025-10-31,0.022000
2015-02-27,0.012000
2024-08-30,0.023000
2000-09-20,0.044000
2001-04-20,0.041000
2019-03-29,0.014000
2021-01-29,0.011000
2004-12-31,0.015000
2014-03-31,0.019000
2016-04-29,0.015000
2024-04-30,0.020000
1994-03-31,0.065000
2005-01-20,0.023000
2006-04-20,0.038000
2007-10-19,0.035000
2014-06-30,0.017000
2022-07-29,0.013000
2023-02-28,0.015000
1992-10-30,0.086000
2000-07-20,0.047000
2010-08-31,0.026000
2012-06-29,0.020000
2016-12-30,0.016000
2019-11-29,0.013000
2001-06-20,0.041000
2011-12-30,0.017000
2015-12-31,0.013000
2022-09-30,0.013000
2007-12-20,0.031000
2009-02-20,0.034000
2018-08-31,0.016000
2025-04-30,0.020000
2001-07-20,0.039000
2011-05-31,0.028000
2022-10-31,0.013000
2014-07-31,0.023000
2000-06-20,0.045000
2021-12-03,0.210000
2004-10-20,0.044000
2008-10-20,0.031000
2008-12-31,0.011000
2024-05-31,0.022000
2015-06-30,0.014000
1993-10-29,0.090000
1996-12-31,0.029000
2007-01-19,0.019000
2021-07-30,0.011000
2024-02-29,0.017000
1997-04-18,0.052000
2007-09-20,0.032000
2013-06-28,0.014000
2019-12-31,0.014000
2016-02-29,0.012000
2022-01-31,0.008000
2004-08-20,0.044000
1994-12-30,0.081000
2018-07-31,0.017000
2018-09-28,0.013000
2012-03-30,0.020000
2014-01-31,0.019000
2017-02-28,0.013000
2015-03-31,0.012000
1996-06-20,0.052000
2024-03-28,0.020000
2016-10-31,0.015000
1999-11-19,0.045000
2008-08-20,0.032000
2013-11-29,0.017000
2014-09-30,0.015000
2022-08-31,0.015000
2022-12-30,0.017000
2011-03-31,0.027000
2016-08-31,0.017000
2001-09-19,0.039000
2018-05-31,0.017000
2023-12-29,0.019000
2000-03-20,0.048000
2002-12-20,0.032000
2012-10-31,0.018000
2014-12-05,0.177000
1995-10-20,0.081000
2023-01-31,0.016000
2025-12-31,0.021000
1999-12-20,0.047000
1994-01-31,0.072000
2003-08-21,0.032000
2000-01-20,0.045000
2007-07-20,0.032000
2018-04-30,0.018000
2024-01-31,0.017000
1999-08-20,0.045000
2009-04-20,0.031000
2024-11-29,0.020000
2005-11-18,0.041000
2006-11-20,0.034000
2011-04-29,0.027000
2013-03-28,0.016000
1994-06-30,0.065000
2017-07-31,0.014000
2008-05-20,0.035000
1992-12-30,0.017000
1999-09-20,0.045000
1993-08-31,0.090000
1994-05-31,0.065000
2016-11-30,0.015000
1998-09-21,0.052000
2008-07-18,0.030000
2019-04-30,0.016000
2003-10-20,0.028000
2015-11-30,0.012000
2017-10-31,0.017000
1997-01-20,0.052000
2000-10-20,0.043000
2007-08-20,0.030000
2007-12-31,0.012000
2018-02-28,0.014000
2020-03-31,0.013000
2023-09-29,0.019000
1996-09-20,0.052000
2010-10-29,0.026000
2016-01-29,0.016000
1995-09-20,0.081000
1997-11-20,0.052000
1999-12-31,0.025000
2002-01-18,0.039000
2009-06-19,0.038000
2019-01-31,0.016000
1996-03-20,0.081000
1998-11-20,0.052000
2015-05-29,0.017000
2021-06-30,0.011000
1992-03-31,0.013000
2010-06-30,0.024000
2015-07-31,0.016000
1994-10-31,0.065000
2005-07-20,0.042000
2011-06-30,0.027000
2023-05-31,0.018000
2003-03-20,0.032000
2003-08-20,0.049000
2004-01-22,0.029000
2015-08-31,0.014000
2016-05-31,0.014000
2020-07-31,0.014000
2021-12-31,0.009000
1992-07-31,0.086000
2004-07-22,0.029000
2010-07-30,0.025000
2017-01-31,0.014000
1999-05-20,0.054000
2000-02-18,0.045000
2013-08-30,0.017000
1992-06-30,0.077000
1996-05-20,0.081000
1997-05-20,0.054000
1998-02-20,0.052000
2017-08-31,0.015000
2001-08-20,0.039000
2009-12-18,0.029000
2010-02-26,0.025000
2022-11-30,0.016000
2007-04-20,0.038000
2026-01-30,0.020000
2012-04-30,0.020000
2016-06-30,0.015000
1993-09-30,0.090000
1993-12-31,0.090000
1998-12-18,0.054000
2000-08-21,0.043000
2006-01-20,0.027000
2012-09-28,0.017000
2018-10-31,0.017000
1995-06-30,0.081000
1997-12-19,0.054000
1997-03-20,0.058000
2002-07-22,0.032000
2014-12-31,0.014000
2021-05-28,0.012000
1993-07-30,0.090000
1998-10-20,0.054000
1992-09-30,0.086000
2022-12-02,0.409000
2023-11-30,0.018000
2007-02-20,0.028000
1994-09-30,0.065000
2025-07-31,0.018000
2009-05-20,0.032000
1996-08-20,0.052000
2000-12-29,0.024000
2001-11-20,0.039000
2003-05-20,0.033000
2022-06-30,0.012000
1994-11-30,0.065000
1999-06-18,0.052000
2011-07-29,0.027000
2014-08-29,0.017000
1992-11-30,0.090000
2001-01-19,0.043000
2001-12-31,0.022000
2013-02-28,0.015000
2017-11-30,0.018000
2020-09-30,0.012000
2024-12-31,0.019000
1993-02-26,0.090000
2008-03-20,0.037000
2013-12-31,0.018000
2021-09-30,0.010000
2024-10-31,0.020000
1997-02-20,0.052000
2006-09-20,0.032000
2012-01-31,0.019000
2018-01-31,0.016000
2022-02-28,0.008000
2009-10-20,0.031000
2019-07-31,0.013000
2026-04-30,0.021000
2017-04-28,0.015000
1993-04-30,0.090000
2006-10-20,0.037000
1998-08-20,0.052000
2004-09-20,0.044000
2009-03-23,0.031000
2025-08-29,0.020000
2005-04-20,0.049000
2010-11-30,0.025000
2012-12-31,0.016000
2024-09-30,0.019000
2002-04-19,0.039000
2004-02-20,0.033000
2023-03-31,0.021000
1992-04-30,0.077000
1998-05-20,0.054000
2005-02-18,0.039000
2018-11-30,0.017000
2020-11-30,0.011000
2003-11-21,0.030000
2008-02-20,0.033000
2008-11-20,0.032000
2006-08-18,0.034000
2025-03-31,0.020000
2015-09-30,0.013000
1994-07-29,0.065000
2001-03-20,0.044000
2004-12-20,0.041000
2013-09-30,0.016000
2020-04-30,0.013000
1995-08-18,0.081000
2002-06-20,0.033000
2006-07-20,0.035000
2011-12-08,0.099000
2020-10-30,0.012000
2021-10-29,0.010000
1993-03-31,0.090000
1999-10-20,0.047000
2009-11-23,0.034000
2025-09-30,0.019000
1996-01-19,0.052000
1998-01-20,0.052000
1998-07-20,0.054000
2002-08-20,0.032000
2008-09-19,0.033000
2012-08-31,0.018000
1992-05-29,0.077000
2023-06-30,0.020000
2023-07-31,0.018000
1995-05-31,0.081000
2012-07-31,0.020000
2014-02-28,0.018000
1997-06-20,0.052000
1999-04-20,0.052000
2003-06-20,0.035000
2004-11-19,0.041000
2010-01-29,0.029000
2011-11-30,0.018000
2007-06-20,0.033000
2008-04-18,0.034000
2013-07-31,0.018000
2019-12-04,0.103000
1992-08-31,0.086000
2002-05-20,0.032000
2005-09-20,0.038000
2009-07-20,0.034000
2020-05-29,0.013000
2005-12-20,0.039000
2016-09-30,0.015000
2019-09-30,0.012000
2022-03-31,0.010000
2003-12-22,0.029000
2009-09-18,0.034000
2002-02-20,0.039000
2012-05-31,0.021000
2025-06-30,0.019000
2026-06-30,0.022000
2006-06-20,0.035000
2018-12-06,0.033000
2021-08-31,0.010000
1993-06-30,0.090000
1997-10-20,0.054000
1999-03-19,0.058000
2006-02-17,0.037000
2007-05-18,0.032000
2018-12-31,0.016000
2020-02-28,0.011000
2013-01-31,0.016000
2019-08-30,0.014000
2021-02-26,0.010000
2005-08-19,0.040000
2003-12-31,0.015000
2005-03-18,0.040000
2021-03-31,0.011000
2002-12-31,0.017000
2016-07-29,0.017000
2020-08-31,0.012000
1994-08-31,0.065000
1997-12-31,0.029000
2010-03-31,0.026000
2014-05-30,0.018000
2017-05-31,0.016000
2021-11-30,0.009000
2006-12-20,0.032000
1993-01-29,0.090000
2017-09-29,0.015000
2020-12-31,0.012000
1998-06-19,0.052000
2003-07-21,0.032000
2006-05-19,0.031000
2015-01-30,0.012000
2016-03-31,0.015000
2020-06-30,0.011000
2006-03-20,0.035000
2013-04-30,0.017000
2015-04-30,0.014000
2025-11-28,0.019000
1997-09-19,0.052000
2000-12-20,0.044000
2013-05-31,0.016000
2001-05-21,0.039000
2005-10-20,0.037000
2019-10-31,0.014000
1995-03-31,0.081000
1999-01-20,0.052000
2003-04-21,0.033000
2022-05-31,0.012000
2026-02-27,0.018000
2014-10-31,0.015000
2014-11-28,0.014000
1995-01-31,0.081000
1996-04-19,0.081000
1999-07-20,0.054000
2011-08-31,0.026000
2024-06-28,0.019000
1997-07-18,0.054000
1999-02-19,0.052000
2018-03-29,0.022000
1993-05-28,0.090000
1996-12-20,0.054000
2000-04-20,0.045000
2007-03-20,0.027000
2012-02-29,0.018000
2023-10-31,0.019000
2001-02-20,0.043000
2003-09-19,0.034000
2008-12-17,0.117000
2017-03-31,0.018000
2017-12-29,0.015000
2019-06-28,0.014000
1996-11-20,0.052000
2008-06-20,0.038000
2009-08-20,0.036000
2016-12-07,0.065000
2021-04-30,0.010000
2025-05-30,0.020000
1995-04-28,0.081000
2003-02-20,0.035000
2011-02-28,0.026000
2013-10-31,0.018000
2015-10-30,0.012000
2019-05-31,0.017000
2003-01-21,0.032000
1995-11-20,0.081000
2002-03-28,0.061000
2002-09-20,0.033000
2007-11-20,0.030000
2010-09-30,0.025000
2025-01-31,0.021000
2017-06-30,0.018000
2020-12-04,0.060000
2023-04-28,0.017000
1994-04-29,0.065000
1995-12-20,0.081000
1996-07-19,0.054000
2022-04-29,0.010000
1994-02-28,0.072000
1998-12-31,0.029000
2008-01-18,0.024000
2011-09-30,0.023000
1996-02-20,0.081000
2010-12-31,0.027000
2011-10-31,0.021000
2001-10-19,0.041000
2002-11-20,0.033000
2005-05-20,0.050000
2009-01-20,0.021000
2020-01-31,0.014000
2000-11-20,0.043000
2015-12-09,0.140000
2024-07-31,0.021000
1996-10-18,0.054000
1998-03-20,0.058000
2019-02-28,0.013000
2011-01-31,0.028000
2025-02-28,0.018000
2010-05-28,0.024000
2012-11-30,0.017000
2014-04-30,0.018000
2023-08-31,0.019000
2026-05-29,0.023000
1993-11-30,0.090000
1995-07-20,0.052000
1995-12-29,0.029000
1998-04-20,0.052000
2026-03-31,0.020000