f/overrides/event-backup/fhaix-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

369 lines
7.2 KiB
Plaintext

Date,Dividends
2012-02-01,0.012000
2018-11-30,0.009000
2007-05-01,0.013000
2007-07-02,0.013000
2005-11-01,0.013000
2009-11-02,0.012000
2011-12-01,0.017000
2013-06-03,0.011000
2015-04-01,0.010000
2026-07-28,0.010000
1996-10-01,0.022000
2004-12-01,0.013000
2021-07-30,0.007000
2000-04-03,0.022000
2014-09-02,0.010000
2002-07-15,0.030000
2011-10-03,0.012000
2015-06-01,0.010000
1997-02-03,0.022000
2001-12-03,0.017000
2008-12-01,0.018000
2024-06-25,0.009000
2008-01-03,0.013000
2011-03-01,0.012000
2013-09-03,0.011000
2016-02-01,0.009000
2016-03-01,0.009000
2016-08-01,0.009000
2017-06-01,0.008000
2000-09-01,0.022000
2004-02-02,0.013000
2022-04-26,0.008000
1997-09-02,0.022000
2008-07-01,0.013000
2017-07-03,0.008000
2022-05-25,0.007000
2023-09-26,0.009000
2024-01-26,0.010000
1995-10-02,0.022000
1995-12-01,0.022000
2014-08-01,0.010000
2015-02-02,0.010000
2016-09-01,0.009000
2017-01-04,0.008000
2020-04-30,0.009000
2022-03-28,0.007000
2002-10-15,0.028000
2004-08-02,0.013000
2025-08-26,0.009000
2013-02-01,0.012000
2013-04-01,0.011000
2014-12-01,0.010000
2016-06-01,0.009000
2016-11-01,0.008000
2023-01-26,0.008000
2001-03-01,0.020000
2003-07-01,0.012000
2016-04-01,0.009000
2020-11-30,0.008000
2021-01-29,0.007000
2021-08-31,0.008000
2004-11-01,0.013000
2015-08-03,0.010000
2006-12-01,0.018000
1996-06-03,0.022000
2005-12-01,0.013000
2001-11-01,0.017000
2006-11-01,0.013000
2009-05-01,0.012000
2017-02-01,0.008000
2022-12-27,0.008000
1999-06-01,0.022000
2000-05-01,0.022000
1998-02-02,0.022000
2001-06-01,0.020000
2009-09-01,0.012000
2012-01-04,0.012000
2020-10-30,0.008000
1996-03-01,0.022000
1996-08-01,0.022000
2016-12-01,0.008000
2023-08-28,0.009000
2014-07-01,0.010000
2015-10-01,0.010000
1998-08-03,0.022000
2002-02-01,0.017000
2018-03-29,0.008000
1997-01-03,0.022000
1997-08-01,0.022000
2014-11-03,0.010000
2017-09-01,0.008000
2023-02-23,0.009000
2025-10-28,0.009000
2010-08-02,0.012000
2013-12-02,0.011000
2000-11-01,0.020000
2005-04-01,0.013000
2008-11-03,0.013000
2013-08-01,0.011000
2015-03-02,0.010000
2015-11-02,0.010000
2019-03-29,0.009000
2022-11-25,0.010000
2005-01-04,0.013000
2006-08-01,0.013000
2024-11-25,0.009000
2025-01-28,0.009000
2014-01-03,0.011000
2025-09-25,0.009000
2001-02-01,0.020000
2011-02-01,0.012000
2023-12-26,0.009000
2019-12-30,0.008000
2020-01-31,0.009000
2003-08-01,0.012000
2005-10-03,0.013000
2009-06-01,0.012000
1997-06-02,0.022000
1998-07-01,0.022000
2018-12-28,0.009000
2022-01-26,0.007000
2025-02-25,0.009000
1997-05-01,0.022000
2014-06-02,0.011000
2002-12-02,0.013000
2011-11-01,0.012000
2016-01-05,0.009000
2020-02-28,0.008000
2021-10-29,0.008000
1996-11-01,0.022000
2000-02-01,0.022000
2008-10-01,0.013000
2010-11-01,0.012000
2013-10-01,0.011000
2016-05-03,0.009000
2019-10-31,0.008000
2000-10-02,0.020000
2003-01-03,0.013000
2017-12-28,0.004000
2001-08-01,0.017000
2003-12-01,0.013000
2009-04-01,0.012000
1996-07-01,0.022000
2008-05-01,0.013000
1999-04-01,0.022000
2003-10-01,0.013000
2014-10-01,0.010000
2026-03-26,0.009000
1996-05-01,0.022000
1997-10-01,0.022000
2013-05-01,0.011000
2017-11-01,0.008000
2020-06-30,0.007000
2021-05-28,0.008000
2008-06-02,0.013000
2009-07-01,0.012000
2001-01-03,0.020000
2005-07-01,0.013000
1995-11-01,0.022000
1999-07-01,0.022000
2008-08-01,0.013000
2009-02-02,0.013000
2011-01-04,0.012000
2013-01-03,0.012000
2019-02-28,0.009000
2022-07-26,0.008000
2002-04-01,0.015000
2007-12-03,0.019000
2002-09-03,0.015000
2006-09-01,0.013000
2007-02-01,0.013000
2010-02-01,0.012000
2013-11-01,0.011000
2014-04-01,0.011000
1996-02-01,0.022000
2002-03-01,0.017000
2021-09-30,0.007000
2004-04-01,0.013000
2010-05-03,0.012000
2025-03-26,0.009000
2000-07-03,0.022000
2001-09-04,0.017000
2000-08-01,0.022000
2004-09-01,0.013000
2016-10-03,0.008000
2018-07-31,0.008000
2023-07-26,0.009000
1998-06-01,0.022000
1998-12-01,0.022000
2015-12-01,0.009000
2017-10-02,0.008000
1998-09-01,0.022000
2008-04-01,0.013000
2003-02-03,0.013000
2005-08-01,0.013000
2011-04-01,0.012000
2020-07-31,0.010000
2024-05-28,0.009000
2024-10-28,0.010000
1996-04-01,0.022000
1999-10-01,0.022000
2012-11-01,0.012000
2021-04-30,0.009000
2023-06-27,0.009000
2025-04-25,0.010000
2007-03-01,0.013000
2011-05-02,0.012000
2007-09-04,0.013000
2019-06-28,0.009000
2020-03-31,0.008000
1998-11-02,0.022000
2006-07-03,0.013000
2011-08-01,0.012000
2018-04-30,0.009000
2021-06-30,0.008000
2024-04-25,0.011000
2024-08-27,0.009000
2003-03-03,0.011000
2008-02-01,0.013000
2006-06-01,0.013000
2008-03-03,0.013000
2010-06-01,0.012000
2023-10-26,0.010000
2024-09-25,0.009000
2026-02-24,0.010000
2002-11-01,0.015000
2006-03-01,0.013000
1998-04-01,0.022000
1999-12-01,0.022000
2012-06-01,0.012000
2018-01-31,0.009000
2021-02-26,0.007000
2021-11-30,0.007000
1997-12-01,0.022000
1998-01-05,0.022000
2025-11-24,0.011000
2026-06-25,0.009000
2007-08-01,0.013000
2013-07-01,0.011000
1997-03-03,0.022000
1999-08-02,0.022000
2009-10-01,0.012000
2010-07-01,0.012000
2011-06-01,0.012000
2012-03-01,0.012000
2017-03-01,0.008000
2021-12-30,0.008000
2004-10-01,0.013000
2006-10-02,0.013000
2023-03-28,0.008000
2024-02-26,0.009000
2022-06-27,0.010000
2022-08-26,0.008000
2009-08-03,0.012000
2021-03-31,0.009000
2010-09-01,0.012000
2019-01-31,0.008000
2020-12-30,0.009000
2001-05-01,0.020000
2006-04-03,0.013000
2005-06-01,0.013000
2019-07-31,0.009000
2020-08-31,0.008000
1999-01-05,0.022000
2000-12-01,0.020000
2012-05-01,0.012000
2015-07-01,0.010000
2017-04-03,0.008000
2018-05-31,0.009000
2022-09-27,0.008000
1998-03-02,0.022000
2007-01-04,0.013000
2011-07-01,0.012000
1999-05-03,0.022000
2004-03-01,0.013000
2005-05-02,0.013000
2009-03-02,0.012000
2010-01-05,0.012000
2001-07-02,0.017000
2002-08-01,0.015000
2015-09-01,0.010000
2024-12-26,0.009000
2003-11-03,0.013000
2012-10-01,0.012000
2024-03-25,0.008000
2025-07-28,0.009000
1997-11-03,0.022000
2010-10-01,0.012000
2014-05-01,0.011000
2018-02-28,0.008000
2018-10-31,0.009000
2019-09-30,0.008000
2005-03-01,0.013000
2012-09-04,0.012000
2001-04-02,0.020000
2002-06-17,0.033000
2008-09-02,0.013000
2015-05-01,0.010000
2019-05-31,0.009000
1996-09-03,0.022000
2000-01-04,0.022000
2005-02-01,0.013000
2020-05-29,0.006000
1999-11-01,0.022000
2004-06-01,0.013000
2007-06-01,0.013000
2014-03-03,0.011000
2023-05-25,0.009000
2023-11-27,0.009000
2026-04-27,0.009000
1996-01-03,0.022000
1998-10-01,0.022000
2017-08-01,0.008000
2020-09-30,0.008000
1997-07-01,0.022000
2003-09-02,0.012000
2010-03-01,0.012000
2011-09-01,0.012000
2012-08-01,0.012000
2018-09-28,0.009000
2025-06-25,0.009000
2006-01-04,0.013000
2006-02-01,0.013000
1999-09-01,0.022000
2004-07-01,0.013000
2013-03-01,0.011000
2019-11-29,0.008000
2022-10-26,0.009000
2024-07-26,0.009000
2025-12-26,0.009000
2000-06-01,0.022000
2003-04-01,0.011000
2026-01-27,0.009000
2007-11-01,0.013000
2012-12-03,0.012000
2016-07-01,0.009000
2019-04-30,0.009000
2025-05-23,0.009000
1996-12-02,0.022000
2007-10-01,0.013000
2012-07-02,0.012000
2014-02-03,0.011000
2022-02-23,0.008000
2023-04-25,0.008000
2002-01-03,0.017000
2005-09-01,0.013000
2001-10-01,0.017000
2002-05-01,0.015000
2009-12-01,0.024000
2010-12-01,0.022000
2026-05-26,0.009000
1997-04-01,0.022000
2000-03-01,0.022000
1999-03-01,0.022000
2006-05-01,0.013000
2009-01-05,0.013000
2012-04-02,0.012000
2015-01-05,0.010000
2017-05-01,0.008000
1998-05-01,0.022000
1999-02-01,0.022000
2019-08-30,0.008000
2017-12-01,0.008000
2018-08-31,0.009000
2018-06-29,0.008000
2004-05-03,0.013000
2007-04-02,0.013000