f/overrides/event-backup/mmufx-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

366 lines
7.1 KiB
Plaintext

Date,Dividends
2011-12-30,0.090000
2014-06-30,0.053000
2017-05-31,0.036000
1995-10-31,0.023000
1997-12-02,1.391000
2003-12-31,0.028000
2008-07-31,0.035000
2000-08-31,0.060000
2002-12-31,0.029000
2013-04-30,0.035000
2015-07-31,0.035000
2013-07-31,0.050000
2020-07-31,0.037000
2021-03-31,0.022000
2025-03-25,0.105000
1998-08-31,0.024000
1999-09-30,0.018000
2003-08-29,0.010000
2005-11-30,0.017000
2012-04-30,0.040000
1997-05-30,0.024000
2001-04-30,0.017000
2003-11-28,0.013000
2004-06-30,0.010000
1996-12-03,0.786000
2005-09-30,0.017000
2024-06-25,0.128000
2005-04-29,0.010000
1994-10-31,0.027000
1999-05-28,0.020000
2004-01-30,0.010000
2004-12-31,0.010000
2000-09-29,0.060000
2012-09-28,0.040000
2013-08-30,0.050000
2018-12-31,0.053000
2011-02-28,0.033000
2018-09-28,0.047000
1999-12-02,1.094000
2002-11-29,0.020000
2005-07-29,0.017000
2007-06-29,0.022000
2017-10-31,0.040000
2019-04-30,0.037000
2002-01-31,0.017000
2002-02-28,0.010000
2013-06-28,0.035000
2013-11-29,0.055000
2009-02-27,0.033000
2012-08-31,0.040000
2016-02-29,0.034000
2019-05-31,0.037000
1994-05-31,0.027000
1998-01-30,0.026000
1998-02-27,0.022000
2004-05-28,0.010000
2015-04-30,0.035000
2018-05-31,0.037000
2018-08-31,0.047000
1999-01-29,0.024000
2005-12-30,0.017000
2006-08-31,0.029000
2013-10-31,0.055000
1993-09-30,0.086000
1998-10-30,0.025000
2001-11-30,0.017000
2003-09-30,0.010000
2004-10-29,0.013000
2009-06-30,0.030000
2011-05-31,0.038000
2026-06-25,0.076000
1995-12-29,0.022000
1997-01-31,0.031000
1999-11-30,0.018000
2000-06-30,0.060000
2010-10-29,0.048000
2021-09-23,0.068000
2023-12-14,0.875000
1995-08-31,0.026000
1996-04-30,0.025000
2001-05-31,0.017000
2004-07-30,0.010000
2004-02-27,0.010000
2011-09-30,0.050000
1997-12-31,0.026000
2001-07-31,0.017000
2001-09-28,0.017000
2006-01-31,0.012000
2005-08-31,0.017000
2013-02-28,0.035000
2004-04-30,0.010000
2020-06-30,0.037000
1993-12-31,0.105000
1995-01-31,0.027000
1996-03-29,0.027000
2000-07-31,0.060000
1995-04-28,0.025000
1999-04-30,0.024000
2015-12-22,1.068000
2020-10-30,0.032000
2020-12-31,0.031000
1995-02-28,0.027000
1995-05-31,0.029000
1998-06-30,0.024000
2014-12-31,0.061000
2010-07-30,0.037000
2011-03-31,0.033000
2014-07-31,0.053000
2020-03-31,0.037000
1994-12-30,0.030000
2002-03-28,0.010000
2003-03-31,0.010000
2006-12-29,0.046000
2021-01-29,0.022000
2025-06-26,0.111000
2014-02-28,0.040000
2002-10-31,0.020000
2012-01-31,0.040000
2012-10-31,0.040000
2012-12-31,0.102000
1995-07-31,0.028000
2014-08-29,0.053000
2014-12-22,1.341000
2015-09-30,0.035000
2020-01-31,0.037000
2000-12-29,0.040000
2002-08-30,0.011000
2006-04-28,0.012000
2017-03-31,0.036000
1999-06-30,0.020000
1999-08-31,0.018000
2001-08-31,0.017000
2003-06-30,0.010000
1993-06-30,0.090000
1997-04-30,0.028000
1997-08-29,0.023000
1998-05-29,0.024000
2005-05-31,0.017000
2010-03-31,0.032000
2017-07-31,0.036000
2008-02-29,0.020000
2017-09-29,0.040000
2021-12-16,1.172000
2018-04-30,0.037000
2023-06-22,0.136000
2005-01-31,0.010000
2009-03-31,0.033000
2012-02-29,0.040000
2016-09-30,0.038000
1994-07-29,0.025000
1999-02-26,0.024000
2000-03-31,0.017000
2010-12-31,0.073000
2020-04-30,0.037000
1992-12-28,0.086000
1995-11-30,0.023000
2000-02-29,0.017000
2005-10-31,0.017000
1998-07-31,0.024000
1999-12-31,0.017000
2006-02-28,0.012000
2011-07-29,0.042000
1998-03-31,0.024000
2008-12-11,0.073000
2017-06-30,0.036000
2020-12-17,0.920000
1996-02-29,0.023000
1999-07-30,0.020000
2000-10-31,0.060000
2007-11-30,0.050000
2015-12-31,0.066000
2016-10-31,0.038000
2019-09-30,0.045000
2025-12-11,0.709000
1998-12-31,0.024000
2001-03-30,0.017000
2002-04-30,0.010000
2011-11-30,0.050000
2014-05-30,0.053000
2015-08-31,0.035000
2016-08-31,0.038000
1997-09-30,0.021000
2000-04-28,0.017000
2007-05-31,0.017000
2011-04-29,0.038000
2010-02-26,0.030000
2010-09-30,0.048000
2011-10-31,0.050000
2016-06-30,0.034000
1994-11-30,0.027000
1996-09-30,0.033000
1999-03-31,0.024000
2008-01-31,0.020000
2019-12-31,0.116000
2004-11-30,0.015000
2010-05-28,0.037000
2011-06-30,0.042000
2015-10-30,0.040000
1995-06-30,0.029000
2001-02-28,0.017000
2003-07-31,0.010000
2004-09-30,0.013000
2007-09-28,0.040000
2011-08-31,0.050000
2015-01-30,0.035000
2016-05-31,0.034000
1995-03-31,0.027000
1996-08-30,0.031000
1998-11-30,0.024000
2007-02-28,0.020000
2022-12-15,1.639000
2026-03-26,0.101000
1994-08-31,0.027000
2003-10-31,0.010000
2007-07-31,0.026000
2019-03-29,0.037000
1996-01-31,0.023000
2016-07-29,0.038000
2022-06-23,0.119000
2007-08-31,0.040000
2012-05-31,0.040000
2022-03-24,0.097000
2024-09-26,0.106000
1993-03-31,0.087000
1997-10-31,0.026000
2001-01-31,0.017000
2005-06-30,0.017000
1994-06-30,0.027000
2006-09-29,0.033000
2014-04-30,0.050000
2013-05-31,0.040000
2013-12-31,0.100000
2016-12-30,0.273000
2017-12-29,0.046000
1997-06-30,0.026000
2005-02-28,0.010000
2009-10-30,0.055000
2013-01-31,0.035000
2020-02-28,0.037000
2004-08-31,0.010000
2006-10-31,0.033000
2008-09-30,0.035000
2015-02-27,0.035000
2006-11-30,0.046000
2012-06-29,0.040000
2018-07-31,0.042000
2019-11-29,0.050000
2019-10-31,0.045000
1997-03-31,0.027000
2000-05-31,0.017000
2010-01-29,0.030000
2012-11-30,0.050000
2020-08-31,0.037000
1996-12-31,0.051000
2008-10-31,0.035000
2014-11-28,0.058000
2019-08-30,0.042000
2018-10-31,0.047000
2008-05-30,0.035000
2009-08-31,0.040000
2017-01-31,0.036000
2017-04-28,0.036000
2002-09-30,0.017000
2009-04-30,0.030000
2015-03-31,0.035000
2018-11-30,0.047000
1994-03-31,0.105000
1996-11-29,0.031000
1999-10-29,0.018000
2001-12-31,0.020000
2012-12-11,0.008000
2013-09-30,0.050000
2016-11-30,0.045000
2020-09-30,0.010000
2002-05-31,0.010000
2003-05-30,0.010000
2009-12-31,0.079000
2010-08-31,0.042000
2020-11-30,0.032000
2014-09-30,0.053000
2015-05-29,0.035000
2021-02-26,0.022000
2023-09-21,0.106000
2002-07-31,0.010000
2009-05-29,0.030000
2014-01-31,0.040000
2014-03-31,0.040000
2007-10-31,0.040000
2012-07-31,0.040000
2013-03-28,0.035000
2018-01-31,0.037000
1994-09-30,0.027000
1998-04-30,0.024000
2000-01-31,0.017000
2007-01-31,0.020000
2019-01-31,0.037000
2018-06-29,0.040000
1992-09-30,0.068000
2006-06-30,0.024000
2009-07-31,0.035000
2018-03-29,0.037000
2021-06-24,0.067000
2024-12-12,0.508000
2006-07-31,0.024000
2008-08-29,0.035000
2010-11-30,0.048000
2018-12-20,0.331000
2015-11-30,0.040000
2016-03-31,0.034000
2022-09-22,0.109000
1992-06-30,0.055000
2008-06-30,0.035000
2009-09-30,0.040000
2013-12-10,0.897000
2005-03-31,0.010000
2007-03-30,0.020000
2007-12-31,0.050000
2017-08-31,0.036000
1995-09-29,0.025000
1996-07-31,0.028000
1996-10-31,0.031000
1998-12-02,0.612000
2024-03-26,0.094000
2012-03-30,0.040000
1994-04-29,0.026000
1996-05-31,0.025000
1997-07-31,0.026000
2009-11-30,0.055000
2018-02-28,0.037000
2023-03-23,0.100000
2025-09-25,0.125000
2008-04-30,0.035000
2011-01-31,0.033000
2014-10-31,0.053000
2015-06-30,0.035000
2007-04-30,0.017000
2008-12-31,0.056000
2016-01-29,0.031000
2019-06-28,0.037000
2017-11-30,0.045000
1996-06-28,0.030000
2001-06-29,0.017000
2002-06-28,0.010000
2009-01-30,0.033000
2019-12-19,1.000000
2004-03-31,0.010000
2006-05-31,0.012000
2016-04-29,0.034000
2019-07-31,0.040000
2008-03-31,0.020000
2010-06-30,0.037000
2017-02-28,0.036000
2019-02-28,0.037000
1998-09-30,0.024000
2001-10-31,0.017000
2006-03-31,0.012000
2007-12-11,1.068000
2008-11-28,0.055000
2017-12-21,0.080000
2020-05-29,0.037000
1997-02-28,0.027000
1997-11-28,0.026000
2000-11-30,1.283000
2003-04-30,0.010000