f/overrides/event-backup/fdbax-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

374 lines
7.3 KiB
Plaintext

Date,Dividends
1996-04-24,0.059000
1998-08-24,0.059000
2000-05-24,0.059000
2007-10-24,0.038000
2022-04-25,0.025000
2026-03-24,0.026000
2015-10-26,0.031000
1995-11-24,0.061000
1998-11-24,0.057000
1999-03-24,0.057000
1999-08-24,0.057000
2008-12-24,0.082000
2011-07-25,0.040000
2013-07-24,0.034000
2017-09-25,0.027000
2019-02-25,0.030000
2020-01-24,0.028000
2024-05-24,0.024000
2025-08-25,0.026000
2004-12-27,0.044000
2007-01-24,0.040000
2020-10-26,0.025000
2025-04-24,0.026000
2009-02-24,0.041000
2011-08-24,0.040000
2011-10-24,0.036000
2017-11-24,0.029000
2011-05-24,0.040000
2022-12-27,0.025000
2024-08-26,0.025000
2005-10-24,0.042000
2009-01-26,0.043000
2018-04-24,0.026000
2019-11-25,0.027000
2023-02-24,0.024000
2025-06-24,0.026000
1996-10-24,0.058000
2000-08-24,0.060000
2006-10-24,0.040000
2019-04-24,0.029000
2011-06-24,0.042000
2014-12-26,0.056000
2005-02-24,0.045000
2006-11-24,0.040000
2012-09-24,0.033000
2016-03-24,0.030000
1997-04-24,0.058000
2001-05-24,0.058000
2007-08-24,0.039000
2023-07-24,0.024000
2024-02-26,0.025000
1996-01-24,0.060000
1999-02-24,0.057000
2001-09-24,0.055000
2013-10-24,0.036000
2013-11-25,0.036000
2016-04-25,0.030000
2022-05-24,0.024000
1999-11-24,0.057000
2000-01-24,0.057000
2002-11-25,0.049000
2016-02-24,0.030000
2017-08-24,0.027000
2021-08-24,0.026000
2022-01-24,0.026000
2001-04-24,0.059000
2002-07-31,0.001000
2012-04-24,0.036000
2018-12-24,0.031000
2019-01-24,0.030000
2023-03-24,0.024000
2016-06-24,0.029000
2001-01-24,0.060000
2005-04-25,0.042000
2006-09-25,0.040000
2008-06-24,0.041000
2012-10-24,0.035000
2014-05-27,0.032000
2014-08-25,0.030000
2019-07-24,0.029000
2008-01-24,0.041000
2010-01-25,0.041000
2015-07-24,0.030000
2017-06-26,0.027000
2020-12-24,0.026000
2024-09-24,0.025000
2015-06-24,0.031000
1995-09-25,0.063000
2000-02-24,0.059000
2003-07-24,0.047000
2005-09-26,0.042000
2008-10-24,0.042000
2013-01-24,0.033000
2015-01-26,0.031000
2017-07-24,0.028000
2019-06-24,0.028000
1997-08-25,0.058000
2002-01-24,0.052000
2024-07-24,0.025000
2001-07-24,0.057000
2003-06-24,0.047000
2004-08-24,0.046000
2006-03-24,0.042000
2008-04-24,0.041000
2009-06-24,0.040000
2023-12-26,0.025000
2003-11-24,0.047000
2014-10-24,0.031000
2016-08-24,0.028000
2018-01-24,0.029000
2021-06-24,0.026000
2023-08-24,0.024000
2015-12-28,0.157000
1995-07-24,0.063000
1998-04-24,0.058000
1999-07-26,0.057000
2002-04-24,0.050000
2002-05-24,0.049000
2003-04-24,0.050000
2011-01-24,0.042000
2016-09-26,0.027000
2016-11-25,0.031000
2020-08-24,0.026000
2022-03-24,0.026000
2022-08-24,0.024000
1996-06-24,0.058000
1998-05-26,0.059000
2022-02-24,0.026000
2004-04-26,0.046000
2008-07-24,0.039000
2010-12-27,0.083000
2000-03-24,0.059000
2006-12-26,0.041000
2008-03-24,0.042000
2015-08-24,0.030000
2001-12-19,0.052000
2009-03-24,0.040000
2013-03-25,0.032000
2013-05-24,0.031000
2017-03-24,0.028000
2019-09-24,0.028000
1996-02-26,0.060000
2011-03-24,0.040000
2014-03-24,0.033000
2007-07-24,0.038000
2010-02-24,0.041000
2013-04-24,0.032000
2014-07-24,0.031000
2025-02-24,0.025000
2025-11-24,0.028000
2001-03-26,0.059000
2014-09-24,0.031000
2016-10-24,0.028000
2020-04-24,0.028000
2001-02-26,0.059000
2004-03-24,0.046000
2006-04-24,0.043000
2012-08-24,0.036000
2015-05-26,0.030000
2026-06-24,0.029000
1996-12-20,0.058000
2009-12-24,0.068000
2013-02-25,0.030000
2013-12-26,0.063000
2015-02-24,0.031000
2021-05-24,0.026000
2021-10-25,0.026000
2001-06-25,0.057000
2001-08-24,0.054000
2007-02-26,0.040000
2007-03-26,0.039000
2007-09-24,0.039000
2012-02-24,0.039000
2021-04-26,0.026000
2026-01-26,0.025000
2002-10-31,0.001000
2005-01-24,0.044000
2008-11-24,0.048000
2013-09-24,0.034000
2016-12-27,0.060000
2019-03-25,0.030000
2021-07-26,0.026000
2018-07-24,0.026000
2021-01-25,0.026000
2022-06-24,0.022000
2003-10-24,0.047000
2004-07-26,0.046000
2006-05-24,0.040000
2008-08-25,0.040000
2018-03-26,0.026000
2018-09-24,0.025000
2021-03-24,0.026000
2019-05-24,0.033000
1997-06-24,0.058000
1998-02-24,0.060000
1999-10-25,0.057000
2004-01-26,0.048000
2009-05-26,0.040000
2017-10-24,0.027000
2018-05-24,0.026000
2020-09-24,0.026000
2022-10-24,0.025000
2002-09-24,0.049000
2012-03-26,0.039000
2019-12-24,0.029000
2025-12-24,0.027000
1998-06-24,0.060000
2003-09-24,0.048000
2010-10-25,0.044000
2018-02-26,0.029000
2018-08-24,0.026000
2023-05-24,0.024000
1998-10-26,0.057000
1999-04-26,0.057000
2002-03-25,0.050000
2002-12-26,0.050000
2003-02-24,0.049000
2005-05-24,0.042000
2005-07-25,0.043000
2025-10-24,0.026000
2026-07-24,0.029000
1996-05-24,0.058000
1998-07-24,0.059000
1999-06-24,0.057000
2004-10-25,0.047000
2012-05-24,0.037000
2018-11-26,0.029000
2023-11-24,0.025000
2007-11-26,0.039000
2010-08-24,0.044000
2025-01-24,0.025000
1995-10-24,0.063000
2000-04-24,0.059000
2002-08-26,0.049000
2004-05-24,0.047000
2009-10-26,0.043000
2025-05-27,0.026000
1996-09-24,0.059000
2010-03-24,0.042000
2014-11-24,0.033000
2019-08-26,0.028000
2011-04-25,0.042000
1995-08-24,0.063000
1997-05-27,0.059000
1997-09-24,0.060000
1999-05-24,0.057000
2007-04-24,0.040000
2008-02-25,0.040000
2009-08-24,0.042000
2014-01-24,0.034000
2021-12-27,0.026000
2023-04-24,0.024000
2000-11-24,0.060000
2010-05-24,0.043000
2016-01-25,0.030000
2023-06-26,0.024000
1998-12-18,0.057000
2004-09-24,0.046000
2024-04-24,0.025000
1996-07-24,0.058000
1998-03-24,0.057000
2006-06-26,0.040000
2007-12-24,0.042000
2011-12-27,0.061000
2016-05-24,0.029000
2023-09-25,0.025000
2003-08-25,0.047000
2003-12-24,0.047000
2020-03-24,0.029000
2022-07-25,0.024000
1997-02-24,0.058000
2004-02-24,0.047000
2009-04-24,0.040000
2016-07-25,0.028000
2024-10-24,0.025000
1997-10-24,0.059000
2008-09-24,0.040000
2011-02-24,0.041000
2011-09-26,0.039000
2024-01-24,0.025000
2025-09-24,0.026000
2009-11-24,0.043000
2010-11-24,0.048000
2011-11-25,0.040000
2013-08-26,0.034000
2000-10-24,0.060000
2005-03-24,0.042000
2006-02-24,0.042000
2021-02-24,0.026000
2024-03-25,0.024000
1997-11-24,0.060000
2001-11-26,0.052000
2003-01-24,0.049000
2012-01-24,0.040000
2015-03-24,0.031000
2018-10-24,0.027000
2021-09-24,0.026000
1996-11-25,0.058000
1997-01-24,0.059000
2004-06-24,0.046000
2012-06-25,0.038000
2015-09-24,0.031000
2017-05-24,0.027000
2020-06-24,0.025000
2004-11-24,0.044000
2022-11-23,0.024000
2014-04-24,0.032000
1997-03-24,0.058000
1999-12-17,0.057000
2001-10-24,0.052000
2002-02-25,0.051000
2005-12-27,0.042000
2008-05-27,0.043000
2010-09-24,0.044000
2017-04-24,0.028000
2017-12-26,0.064000
2020-05-26,0.027000
2007-06-25,0.038000
2012-12-26,0.057000
2017-02-24,0.028000
2024-06-24,0.025000
2005-06-24,0.042000
2005-11-25,0.043000
2020-02-24,0.029000
2026-04-24,0.026000
2017-01-24,0.028000
1995-12-22,0.062000
1996-08-26,0.058000
1997-12-19,0.061000
1999-09-24,0.057000
2006-01-24,0.042000
2006-08-24,0.041000
2013-06-24,0.033000
2020-07-24,0.026000
2024-11-25,0.025000
2024-12-24,0.026000
2003-03-24,0.049000
2009-07-24,0.041000
2025-07-24,0.026000
2023-01-24,0.024000
1997-07-24,0.058000
1999-01-25,0.057000
2000-07-24,0.059000
2003-05-27,0.047000
2010-06-24,0.043000
2012-07-24,0.039000
2014-06-24,0.031000
2000-06-26,0.059000
2000-12-19,0.061000
1998-09-24,0.057000
2002-06-28,0.001000
2006-07-24,0.040000
2020-11-24,0.025000
2022-09-26,0.024000
2018-06-25,0.026000
1996-03-25,0.060000
2000-09-25,0.060000
2005-08-24,0.042000
2007-05-24,0.038000
2009-09-24,0.042000
2014-02-24,0.033000
2015-04-24,0.030000
2019-10-24,0.028000
2021-11-24,0.025000
2023-10-24,0.025000
1998-01-26,0.060000
2010-07-26,0.043000
2012-11-26,0.040000
2015-11-24,0.033000
2025-03-24,0.025000
2026-02-24,0.026000
2026-05-26,0.027000