f/overrides/event-backup/ip-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

230 lines
4.5 KiB
Plaintext

Date,Dividends
2014-05-21,0.326863
2019-08-14,0.473485
1990-11-16,0.196118
1992-02-14,0.196118
2006-05-17,0.233474
2008-11-13,0.233474
1976-02-18,0.116737
2020-11-13,0.485795
2022-08-12,0.463000
2001-02-21,0.233474
2018-08-14,0.449811
2009-05-14,0.023347
2020-02-20,0.485795
1984-08-20,0.140084
1988-02-12,0.140084
1998-05-20,0.233474
2000-05-17,0.233474
2005-02-16,0.233474
2010-05-13,0.116737
1975-08-18,0.116737
2015-08-12,0.378788
2014-02-12,0.326863
1974-05-20,0.087553
1976-05-17,0.116737
2006-02-15,0.233474
2008-05-21,0.233474
1973-11-16,0.087553
1974-11-18,0.116737
2003-05-21,0.233474
2003-08-19,0.233474
2007-02-14,0.233474
2016-05-25,0.416667
1987-11-16,0.140084
1992-11-16,0.196118
2021-11-12,0.463000
1999-08-18,0.233474
2019-05-24,0.473485
1975-02-18,0.116737
1978-05-15,0.116737
1980-05-19,0.140084
1988-11-14,0.151758
1973-02-20,0.087553
1981-02-17,0.140084
1981-05-18,0.140084
1971-02-16,0.087553
1977-05-16,0.116737
2025-02-24,0.463000
1977-11-14,0.116737
1982-11-15,0.140084
2017-05-24,0.438447
1980-02-19,0.140084
1984-02-21,0.140084
2009-02-11,0.233474
2013-05-22,0.280169
2026-05-22,0.463000
1977-02-14,0.116737
2014-11-13,0.378788
2017-11-14,0.449811
1972-05-15,0.087553
1995-08-16,0.233474
1970-05-19,0.087553
2007-08-13,0.233474
2008-02-13,0.233474
2012-08-13,0.245614
2018-11-14,0.473485
2020-08-13,0.485795
1978-02-21,0.116737
2000-02-16,0.233474
2001-05-16,0.233474
2010-08-12,0.116737
2002-08-21,0.233474
2018-02-20,0.449811
2023-05-25,0.463000
1983-11-14,0.140084
2005-08-17,0.233474
2011-02-11,0.175572
1972-08-14,0.087553
1973-05-14,0.087553
1993-11-15,0.196118
2016-08-11,0.416667
2022-05-26,0.463000
1990-05-14,0.196118
1991-05-20,0.196118
2002-11-20,0.233474
1970-02-16,0.087553
1985-02-19,0.140084
1988-05-16,0.151758
1988-08-15,0.151758
2024-02-21,0.463000
1987-04-21,0.011674
1994-08-15,0.196118
2002-05-22,0.233474
2019-02-20,0.473485
2021-08-13,0.485795
2023-08-14,0.463000
1986-05-19,0.140084
1994-05-16,0.196118
1996-02-21,0.233474
2012-05-22,0.245614
2012-02-13,0.245614
1971-08-16,0.087553
1979-02-20,0.128411
2003-02-19,0.233474
2009-08-13,0.023347
2011-05-13,0.245614
1976-08-16,0.116737
1985-11-18,0.140084
1990-08-20,0.196118
2007-05-16,0.233474
1980-11-17,0.140084
1989-08-14,0.172771
2016-02-11,0.416667
2024-08-15,0.463000
1989-02-17,0.172771
1991-11-18,0.196118
2004-11-17,0.233474
2010-11-12,0.116737
1997-11-19,0.233474
1999-11-17,0.233474
2012-11-13,0.280169
1980-08-18,0.140084
1993-02-12,0.196118
1993-05-17,0.196118
1997-08-20,0.233474
1987-08-17,0.140084
1970-08-17,0.087553
1970-11-16,0.087553
1971-05-18,0.087553
1979-08-20,0.128411
1971-11-15,0.087553
1995-02-17,0.196118
1995-05-15,0.196118
1974-02-19,0.087553
1990-02-16,0.196118
2026-02-23,0.463000
1979-05-14,0.128411
1995-11-21,0.233474
2006-08-16,0.233474
1983-05-16,0.140084
2010-02-11,0.023347
2023-02-16,0.463000
2024-11-15,0.463000
1976-11-15,0.116737
1992-08-17,0.196118
1996-11-20,0.233474
1986-02-14,0.140084
1992-05-18,0.196118
1998-08-19,0.233474
2002-02-20,0.233474
2008-08-14,0.233474
2003-11-19,0.233474
2011-08-11,0.245614
2013-08-13,0.280169
2015-11-12,0.416667
1973-08-20,0.087553
1975-05-19,0.116737
1978-11-20,0.116737
1984-11-19,0.140084
1972-11-17,0.087553
1986-11-17,0.140084
1989-05-15,0.172771
2013-02-13,0.280169
1974-08-19,0.116737
1979-11-19,0.128411
2017-08-11,0.438447
2020-05-26,0.485795
1997-02-19,0.233474
1998-02-18,0.233474
2021-02-17,0.485795
2025-08-15,0.463000
1978-08-14,0.116737
1982-08-16,0.140084
1984-05-14,0.140084
2022-11-14,0.463000
1977-08-15,0.116737
2000-08-16,0.233474
1986-08-18,0.140084
2000-11-21,0.233474
2007-11-14,0.233474
2015-05-21,0.378788
2001-08-22,0.233474
1981-08-17,0.140084
1982-02-11,0.140084
1983-08-15,0.140084
1989-11-17,0.196118
1994-02-14,0.196118
2004-08-18,0.233474
2023-11-14,0.463000
1999-02-17,0.233474
2011-11-14,0.245614
2014-08-13,0.331439
2015-02-11,0.378788
1981-11-16,0.140084
1983-02-14,0.140084
1993-08-16,0.196118
1996-05-22,0.233474
2019-11-14,0.485795
1998-11-17,0.233474
1972-02-14,0.087553
2009-11-12,0.023347
2013-11-13,0.326863
1987-05-27,0.140084
1991-02-15,0.196118
1996-08-21,0.233474
2021-05-26,0.485795
2025-11-14,0.463000
2026-08-14,0.463000
1982-05-17,0.140084
1985-05-20,0.140084
1991-08-19,0.196118
1994-11-14,0.196118
2022-02-17,0.463000
2024-05-23,0.463000
2025-05-23,0.463000
1975-11-17,0.116737
1997-05-21,0.233474
1999-05-19,0.233474
2005-11-16,0.233474
2004-02-18,0.233474
2004-05-19,0.233474
2017-02-13,0.438447
1985-08-19,0.140084
2001-11-20,0.233474
2005-05-18,0.233474
1987-02-13,0.140084
2006-11-15,0.233474
2016-11-10,0.438447
2018-05-24,0.449811