f/overrides/event-backup/dte-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

229 lines
4.4 KiB
Plaintext

Date,Dividends
1988-03-10,0.357447
2006-03-16,0.438298
1971-06-16,0.297872
2020-12-18,0.923404
2014-06-12,0.557447
2000-12-20,0.438298
2023-06-15,0.953000
1974-06-14,0.308936
1975-03-21,0.308936
1982-12-10,0.357447
2024-12-16,1.090000
1973-09-19,0.308936
1981-12-14,0.357447
1999-09-16,0.438298
2012-12-17,0.527660
2025-03-17,1.090000
2025-12-15,1.165000
1970-12-14,0.297872
1978-06-14,0.323404
1981-09-18,0.357447
1987-12-10,0.357447
2019-12-13,0.862128
1985-06-14,0.357447
1989-03-10,0.357447
2010-06-17,0.451064
2009-12-17,0.451064
2013-12-12,0.557447
1973-12-13,0.308936
2000-03-16,0.438298
2018-06-15,0.751489
1979-12-12,0.340426
2002-06-26,0.438298
2011-06-16,0.500426
2024-06-17,1.020000
2001-12-21,0.438298
2009-09-17,0.451064
2018-03-16,0.751489
2023-09-15,0.953000
2025-06-16,1.090000
1974-09-20,0.308936
1976-03-19,0.308085
1998-03-18,0.438298
1972-06-16,0.297872
1988-12-14,0.357447
1994-06-15,0.438298
1988-09-14,0.357447
2005-03-17,0.438298
2016-09-15,0.655319
1974-12-02,0.308936
1978-03-10,0.323404
1978-12-13,0.323404
2015-03-12,0.587234
2022-12-16,0.953000
1986-06-12,0.357447
1990-12-13,0.378723
2017-12-15,0.751489
2010-09-16,0.476596
2020-09-18,0.862128
2021-03-12,0.923404
2024-09-16,1.020000
1979-03-14,0.340426
1989-09-14,0.357447
2004-12-16,0.438298
1986-09-17,0.357447
1997-09-18,0.438298
2015-09-17,0.621277
1991-06-13,0.400000
1992-09-15,0.421277
1996-06-18,0.438298
2007-09-17,0.451064
1984-09-14,0.357447
1985-03-15,0.357447
1989-06-09,0.357447
2009-06-11,0.451064
1996-03-19,0.438298
2007-03-15,0.451064
1983-06-10,0.357447
2002-12-19,0.438298
2023-03-17,0.953000
1970-03-20,0.297872
2009-03-12,0.451064
2018-09-14,0.751489
1994-03-15,0.438298
1998-06-18,0.438298
2004-06-17,0.438298
1977-12-12,0.323404
1985-11-29,0.357447
2014-09-11,0.587234
1998-12-17,0.438298
2011-12-15,0.500426
2017-09-15,0.702128
1976-12-10,0.308085
1980-12-12,0.340426
1996-09-18,0.438298
1992-06-12,0.421277
2003-06-19,0.438298
2017-06-15,0.702128
1972-12-21,0.297872
1982-06-16,0.357447
1982-09-17,0.357447
2006-12-14,0.451064
1979-06-14,0.340426
1980-06-12,0.340426
1993-09-15,0.438298
1973-03-23,0.308936
1996-12-12,0.438298
1975-06-13,0.308936
1983-09-16,0.357447
1987-06-10,0.357447
1993-03-12,0.438298
2001-06-21,0.438298
2008-12-11,0.451064
1972-03-20,0.297872
1983-12-01,0.357447
1987-03-10,0.357447
2014-12-11,0.587234
2025-09-15,1.090000
1979-09-14,0.340426
1980-03-14,0.340426
1991-12-12,0.400000
1997-03-18,0.438298
2010-03-18,0.451064
1976-06-16,0.308085
1983-03-10,0.357447
1994-09-15,0.438298
1973-06-14,0.308936
2005-06-16,0.438298
1992-12-11,0.421277
2013-06-13,0.557447
2017-03-16,0.702128
2000-09-21,0.438298
2015-12-17,0.621277
1977-06-10,0.308085
1999-12-16,0.438298
2000-06-16,0.438298
2026-06-22,1.165000
1998-09-17,0.438298
2011-09-15,0.500426
2012-03-15,0.500426
2005-12-15,0.438298
2020-03-13,0.862128
2026-03-16,1.165000
1972-09-21,0.297872
1977-03-10,0.308085
2002-09-24,0.438298
1990-06-13,0.378723
2004-09-17,0.438298
2022-09-16,0.885000
1976-09-22,0.308085
1984-03-16,0.357447
1990-03-09,0.378723
1995-12-13,0.438298
2003-09-18,0.438298
2020-06-12,0.862128
1970-06-19,0.297872
1980-09-18,0.340426
2015-06-11,0.587234
2003-12-18,0.438298
2019-09-13,0.804255
1971-12-15,0.297872
1978-09-20,0.323404
1999-03-25,0.438298
2024-03-15,1.020000
1981-06-12,0.340426
1992-03-13,0.421277
1993-06-11,0.438298
1990-09-14,0.378723
2004-03-18,0.438298
2012-09-13,0.527660
2018-12-14,0.804255
1971-09-24,0.297872
1988-06-10,0.665532
1997-06-18,0.438298
2019-03-15,0.804255
2022-03-18,0.885000
2023-12-15,1.020000
1986-03-20,0.357447
2006-09-14,0.438298
2007-06-14,0.451064
2021-06-18,0.923404
1983-12-09,0.357447
1991-03-13,0.400000
2016-03-17,0.621277
1975-12-10,0.308085
1997-12-17,0.438298
2002-03-21,0.438298
1984-06-14,0.357447
1989-12-13,0.357447
2001-09-20,0.438298
2007-12-13,0.451064
2008-06-12,0.451064
2014-03-13,0.557447
1971-03-19,0.297872
1986-12-10,0.357447
2001-03-20,0.438298
1994-12-13,0.438298
2013-03-14,0.527660
1993-12-10,0.438298
1995-09-19,0.438298
2005-09-15,0.438298
2008-03-17,0.451064
2013-09-12,0.557447
1977-09-12,0.308085
1985-09-18,0.357447
1991-09-13,0.400000
2022-06-16,0.885000
2006-06-15,0.438298
2016-12-15,0.702128
1982-03-12,0.357447
1995-03-16,0.438298
1999-06-17,0.439149
2008-09-11,0.451064
2016-06-16,0.621277
2011-03-17,0.476596
2012-06-18,0.500426
1974-03-15,0.308936
2003-03-20,0.438298
1981-03-13,0.340426
1975-09-19,0.308085
1995-06-19,0.438298
1970-09-25,0.297872
2021-09-17,0.825000
1987-09-17,0.357447
2021-12-17,0.885000
1984-12-11,0.357447
2010-12-22,0.476596
2019-06-14,0.804255