f/overrides/event-backup/imntx-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

493 lines
9.6 KiB
Plaintext

Date,Dividends
2007-12-17,0.048000
2011-10-31,0.076000
2016-02-29,0.060000
2016-08-31,0.060000
1992-06-25,0.108000
1991-06-24,0.112000
1995-06-26,0.116000
2008-03-27,0.064000
1991-01-25,0.108000
2018-03-29,0.056000
2023-11-30,0.050000
1999-11-23,0.096000
2021-11-30,0.038000
1991-08-26,0.116000
2003-05-23,0.064000
2004-02-25,0.060000
2007-11-26,0.076000
2013-02-28,0.060000
2020-03-31,0.048000
2025-09-30,0.051000
1990-08-24,0.108000
2026-06-30,0.051000
1992-10-23,0.100000
2004-06-25,0.060000
2008-05-28,0.068000
2024-06-28,0.051000
1999-03-24,0.084000
2017-01-31,0.056000
2021-07-30,0.040000
2022-02-28,0.034000
2024-10-31,0.053000
2004-03-26,0.060000
1993-12-27,0.116000
1996-08-26,0.100000
1999-09-22,0.084000
1990-09-24,0.112000
1999-12-22,0.096000
2002-10-25,0.060000
2012-05-31,0.072000
1995-02-23,0.104000
1993-03-25,0.096000
1997-04-28,0.112000
2006-01-26,0.072000
2024-05-31,0.053000
1990-05-25,0.104000
2024-01-31,0.052000
2022-11-30,0.049000
1991-11-25,0.112000
1989-05-30,0.116000
1990-10-25,0.112000
1988-10-31,0.108000
2006-05-25,0.060000
2008-12-17,0.056000
2012-10-31,0.072000
2018-09-28,0.056000
2020-01-31,0.044000
1988-03-31,0.112000
2002-12-20,0.064000
2007-09-21,0.068000
2008-07-28,0.076000
2011-06-30,0.068000
2023-05-31,0.049000
2023-12-29,0.052000
2000-10-24,0.088000
2011-05-31,0.072000
2012-04-30,0.068000
2007-05-25,0.064000
2001-04-26,0.092000
2003-09-22,0.064000
1992-07-24,0.100000
2005-12-22,0.088000
2007-07-24,0.064000
2015-07-31,0.068000
1992-09-24,0.108000
2014-04-30,0.068000
2021-12-31,0.039000
2024-07-31,0.050000
1993-06-24,0.104000
2001-05-25,0.084000
2002-11-25,0.080000
2003-07-24,0.064000
2012-07-31,0.072000
2023-03-31,0.049000
1994-11-28,0.112000
1998-04-28,0.112000
2013-07-31,0.068000
2017-02-28,0.052000
1997-12-26,0.100000
2017-12-29,0.056000
2016-10-31,0.060000
2023-02-28,0.043000
2025-03-31,0.052000
1993-08-23,0.104000
2013-06-28,0.064000
2017-06-30,0.048000
2019-10-31,0.052000
2005-08-29,0.064000
1990-12-26,0.108000
2005-01-27,0.072000
2026-07-31,0.051000
1989-01-31,0.112000
2025-04-30,0.052000
2007-10-26,0.072000
2011-01-31,0.072000
2024-03-28,0.053000
1992-03-26,0.108000
1996-10-28,0.108000
2024-02-29,0.050000
1994-03-25,0.100000
1990-04-25,0.108000
2000-11-21,0.088000
2004-11-24,0.060000
2007-08-24,0.064000
1988-08-30,0.120000
2025-05-30,0.054000
1992-11-23,0.112000
2002-03-26,0.076000
2010-06-30,0.072000
2019-01-31,0.056000
2024-12-31,0.053000
1990-01-26,0.104000
2007-10-25,0.072000
2001-09-27,0.084000
2016-03-31,0.064000
1994-01-26,0.096000
2013-12-03,0.052000
1994-07-26,0.096000
1989-08-31,0.112000
2002-02-26,0.084000
2009-12-31,0.076000
2025-02-28,0.046000
1989-02-28,0.112000
2002-05-24,0.076000
2003-01-22,0.084000
2003-04-24,0.068000
2016-06-30,0.056000
2018-02-28,0.048000
2001-08-27,0.088000
2019-06-28,0.052000
1996-01-25,0.092000
2000-03-23,0.088000
1995-01-25,0.092000
1999-05-27,0.096000
2014-06-30,0.068000
2014-11-28,0.064000
2019-02-28,0.048000
2022-10-31,0.046000
1987-07-29,0.108000
1993-10-22,0.100000
1995-05-25,0.092000
1998-01-28,0.108000
2007-06-25,0.068000
2010-05-28,0.064000
2014-08-29,0.068000
2015-06-30,0.064000
1987-05-29,0.096000
2022-05-31,0.045000
2009-04-24,0.072000
2018-08-31,0.056000
2020-12-31,0.042000
2023-10-31,0.051000
1997-03-26,0.096000
2007-03-26,0.068000
2011-07-29,0.072000
2012-06-29,0.068000
2004-09-24,0.060000
2011-08-31,0.072000
2009-09-24,0.072000
1987-12-31,0.116000
1995-11-27,0.108000
2006-03-27,0.056000
2016-12-30,0.056000
2025-01-31,0.051000
1987-10-30,0.112000
1997-09-25,0.096000
2003-06-25,0.064000
2006-09-25,0.060000
2010-09-30,0.072000
2014-02-28,0.064000
2022-09-30,0.045000
1995-10-26,0.100000
1997-10-28,0.108000
2013-05-31,0.068000
1988-01-29,0.104000
2001-11-26,0.092000
2003-08-29,0.004000
2018-04-30,0.052000
1989-11-30,0.112000
2013-01-31,0.068000
2007-09-24,0.068000
2003-10-23,0.064000
2016-09-30,0.052000
2020-11-30,0.042000
1995-09-25,0.100000
1990-07-25,0.108000
1993-09-22,0.108000
1998-06-25,0.096000
2007-11-23,0.076000
2014-05-30,0.068000
1989-07-31,0.112000
2018-11-30,0.056000
1988-12-30,0.104000
2009-10-26,0.076000
2008-09-25,0.064000
2004-05-26,0.060000
2011-12-30,0.072000
2013-11-29,0.068000
1994-06-24,0.112000
1991-10-25,0.108000
2005-06-29,0.064000
2006-04-26,0.060000
2006-08-28,0.068000
2025-07-31,0.053000
1988-02-29,0.116000
2015-11-30,0.060000
1993-11-23,0.108000
1998-08-26,0.096000
1998-12-22,0.092000
1999-06-23,0.084000
2016-05-31,0.064000
1991-04-24,0.112000
1988-09-30,0.116000
1989-12-29,0.104000
1988-07-29,0.104000
1993-04-23,0.100000
2021-08-31,0.038000
2023-09-29,0.048000
1989-04-28,0.104000
2006-12-18,0.048000
2008-08-27,0.068000
2012-11-30,0.096000
2021-06-30,0.038000
2001-06-26,0.100000
1992-01-24,0.100000
1999-04-23,0.100000
2000-02-24,0.100000
2010-10-29,0.072000
1991-12-26,0.108000
2012-09-28,0.068000
2022-06-30,0.045000
1996-12-26,0.100000
2020-06-30,0.044000
2026-05-29,0.050000
2001-01-26,0.112000
2007-07-25,0.064000
2016-01-29,0.064000
2000-04-24,0.096000
2005-11-29,0.068000
2010-08-31,0.072000
1996-11-26,0.096000
2009-06-24,0.068000
2010-01-29,0.076000
2015-02-27,0.060000
2015-04-30,0.064000
2017-09-29,0.052000
2024-08-30,0.051000
2000-12-20,0.088000
1997-06-26,0.088000
1998-11-24,0.096000
2006-02-27,0.064000
2007-05-24,0.064000
1996-05-24,0.100000
2017-04-28,0.056000
2007-01-23,0.076000
1997-08-27,0.108000
2011-03-31,0.072000
2022-04-29,0.042000
1987-02-26,0.112000
2006-10-26,0.068000
2010-02-26,0.068000
2019-09-30,0.048000
1989-06-30,0.112000
2003-08-22,0.064000
1996-04-26,0.100000
2026-03-31,0.052000
2026-04-30,0.050000
1987-06-29,0.080000
2000-01-21,0.104000
2002-08-26,0.084000
2008-11-25,0.072000
2011-02-28,0.068000
2013-03-28,0.068000
2019-08-30,0.052000
2020-02-28,0.040000
1990-03-26,0.112000
2025-11-28,0.051000
1994-02-24,0.108000
2021-02-26,0.037000
2021-03-31,0.039000
2024-09-30,0.050000
1990-11-26,0.120000
2011-09-30,0.068000
2020-09-30,0.042000
2021-04-30,0.038000
2009-11-24,0.068000
1992-04-24,0.104000
2007-08-23,0.064000
2013-08-30,0.068000
2015-08-31,0.068000
1992-02-24,0.112000
1998-10-23,0.104000
2019-04-30,0.052000
2025-06-30,0.051000
1994-10-25,0.100000
2023-08-31,0.049000
2007-02-23,0.068000
2010-07-30,0.072000
2014-10-31,0.068000
1993-05-24,0.100000
1991-05-24,0.108000
1994-09-26,0.108000
2002-04-30,0.084000
2009-03-25,0.072000
2019-12-31,0.044000
1988-04-29,0.108000
1989-09-29,0.108000
1991-03-25,0.112000
1996-02-26,0.112000
2001-03-26,0.084000
1987-04-29,0.080000
2007-06-22,0.068000
2015-05-29,0.064000
2019-03-29,0.052000
2002-06-26,0.088000
1994-08-23,0.104000
2004-04-26,0.064000
2021-10-29,0.039000
1993-01-26,0.100000
2013-04-30,0.064000
2017-03-31,0.056000
2008-04-28,0.072000
1999-08-26,0.096000
2009-07-24,0.072000
1995-03-27,0.108000
1999-02-25,0.096000
2001-12-20,0.068000
2011-11-30,0.228000
2019-07-31,0.052000
1995-04-26,0.100000
2020-05-29,0.044000
1992-08-25,0.112000
1994-04-25,0.108000
2005-04-28,0.056000
2017-07-31,0.052000
2018-07-31,0.056000
1991-02-22,0.108000
1997-07-25,0.092000
2004-08-25,0.060000
2008-02-27,0.072000
2014-03-31,0.068000
2020-10-30,0.045000
2022-12-30,0.050000
1991-09-25,0.112000
2014-09-30,0.064000
1996-03-27,0.100000
2004-07-26,0.060000
2004-10-25,0.060000
2004-12-22,0.124000
2006-07-26,0.064000
2015-03-31,0.064000
1988-06-30,0.112000
2003-06-23,0.064000
2009-05-26,0.076000
2025-10-31,0.052000
1989-03-31,0.112000
1998-09-24,0.108000
2002-07-26,0.080000
2002-09-26,0.084000
2006-11-27,0.072000
2008-01-28,0.092000
2010-12-31,0.076000
2014-01-31,0.068000
1996-09-25,0.108000
2018-06-29,0.052000
2016-11-30,0.064000
2018-05-31,0.056000
1994-05-24,0.100000
2013-12-31,0.068000
1995-07-26,0.100000
2009-02-23,0.076000
2021-12-03,0.039000
1993-07-23,0.096000
2013-10-31,0.068000
2014-12-31,0.064000
2018-12-31,0.060000
2010-11-30,0.068000
2000-06-21,0.088000
2012-08-31,0.068000
1987-08-28,0.112000
2012-01-31,0.072000
2019-11-29,0.048000
2022-07-29,0.047000
2002-01-25,0.092000
2007-04-25,0.064000
2018-01-31,0.052000
2020-08-31,0.044000
2024-11-29,0.052000
1997-01-29,0.112000
2017-08-31,0.056000
2003-02-21,0.072000
1987-09-29,0.112000
2015-10-30,0.064000
2023-01-31,0.047000
1987-01-29,0.104000
2000-08-25,0.096000
2001-02-26,0.096000
2005-07-28,0.056000
2008-10-27,0.072000
2017-10-31,0.056000
2020-07-31,0.044000
1998-05-27,0.092000
2024-04-30,0.052000
1993-02-24,0.104000
2003-12-22,0.064000
2025-08-29,0.052000
1992-12-28,0.116000
2000-05-24,0.092000
2008-06-26,0.068000
2011-04-29,0.068000
2022-01-31,0.038000
2022-03-31,0.041000
1995-12-27,0.112000
2003-03-24,0.076000
2003-11-21,0.060000
2005-03-30,0.068000
2015-01-30,0.064000
2023-06-30,0.048000
1990-02-23,0.108000
2019-05-31,0.052000
1995-08-25,0.096000
2006-06-26,0.068000
2009-01-23,0.092000
1992-05-26,0.112000
2025-12-31,0.053000
2005-05-26,0.056000
1989-10-31,0.112000
2012-02-29,0.068000
2015-09-30,0.064000
2020-04-30,0.044000
1987-11-30,0.116000
2014-07-31,0.068000
2021-01-29,0.041000
1998-03-26,0.092000
2021-09-30,0.036000
2023-04-28,0.047000
2026-01-30,0.051000
2018-10-31,0.060000
2004-01-26,0.068000
2005-09-29,0.064000
2012-03-30,0.072000
2013-09-30,0.068000
1998-07-27,0.104000
2001-07-31,0.088000
2016-07-29,0.060000
2017-05-31,0.056000
2017-11-30,0.148000
1998-02-26,0.104000
1999-10-25,0.104000
2001-10-26,0.080000
1994-12-28,0.100000
1997-02-26,0.104000
2000-07-24,0.104000
2010-03-31,0.076000
2010-12-16,0.004000
1988-11-30,0.108000
2016-04-29,0.060000
1999-07-26,0.100000
2000-09-21,0.088000
2009-08-24,0.072000
2009-12-17,0.056000
1988-05-27,0.112000
1987-03-30,0.112000
1999-01-29,0.104000
2005-02-24,0.056000
2026-02-27,0.045000
1986-12-31,0.092000
2015-12-31,0.064000
2021-05-28,0.039000
1996-07-26,0.096000
1997-11-25,0.092000
1996-06-26,0.092000
2004-01-27,0.072000
2007-04-24,0.064000
2012-12-31,0.068000
2020-12-02,0.014000
2022-08-31,0.045000
1991-07-25,0.108000
1997-05-28,0.100000
2005-10-27,0.056000
2023-07-31,0.053000
1990-06-25,0.112000