f/overrides/event-backup/hpq-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

214 lines
4.2 KiB
Plaintext

Date,Dividends
2011-12-12,0.054496
2020-09-08,0.176000
2019-03-12,0.160000
2020-12-08,0.194000
1976-03-18,0.001064
1981-09-17,0.001703
1983-03-17,0.002129
2023-12-12,0.276000
2024-06-12,0.276000
1977-09-19,0.001419
1973-09-18,0.000710
2003-09-15,0.036331
1997-03-24,0.027248
2003-12-15,0.036331
2008-03-10,0.036331
2015-06-08,0.079927
1983-06-16,0.002129
2000-06-19,0.036331
2009-12-14,0.036331
2012-09-10,0.059946
1999-09-20,0.036331
2013-12-09,0.065849
1987-09-17,0.003690
2005-03-14,0.036331
2005-12-12,0.036331
1970-03-25,0.001419
2015-09-04,0.079927
2022-06-07,0.250000
2024-03-12,0.276000
2023-06-13,0.263000
2008-09-08,0.036331
1982-12-16,0.002129
1999-06-21,0.036331
2009-09-14,0.036331
1982-09-16,0.001703
1984-03-15,0.002554
1990-12-19,0.005960
1996-06-17,0.027248
2000-12-18,0.036331
2010-09-13,0.036331
2021-03-09,0.194000
1992-06-18,0.011353
2002-09-16,0.036331
1991-12-20,0.007096
2010-12-13,0.036331
2023-09-12,0.263000
1970-09-25,0.000710
2000-09-18,0.036331
2001-03-19,0.036331
2005-09-12,0.036331
1975-09-18,0.001064
1987-03-19,0.003122
2010-06-14,0.036331
2016-06-13,0.124000
1985-09-12,0.003122
1984-06-14,0.002554
2007-12-10,0.036331
2025-06-11,0.289000
1979-03-22,0.001064
2009-06-08,0.036331
1979-09-20,0.001419
2015-12-07,0.124000
2021-06-08,0.194000
1991-09-19,0.007096
1986-09-18,0.003122
1992-09-17,0.011353
1993-09-16,0.014192
1999-12-20,0.036331
2001-06-18,0.036331
1999-03-22,0.036331
1994-06-16,0.017030
2012-12-10,0.059946
1982-06-17,0.001703
1993-03-18,0.011353
2000-06-05,7.079700
2011-06-13,0.054496
2004-12-13,0.036331
1972-10-04,0.050778
2016-03-07,0.124000
2016-12-12,0.133000
2017-06-12,0.133000
2025-03-12,0.289000
2026-06-10,0.300000
1980-09-18,0.001419
1998-06-22,0.036331
2008-06-09,0.036331
2019-12-10,0.176000
1971-03-26,0.000710
1988-12-15,0.004825
2007-03-12,0.036331
2012-03-12,0.054496
2006-09-11,0.036331
2025-12-11,0.300000
1987-12-17,0.003690
2005-06-13,0.036331
1980-03-21,0.001419
1977-03-17,0.001419
1984-12-13,0.003122
1990-06-14,0.005960
2021-09-07,0.194000
1975-03-18,0.000710
2001-09-17,0.036331
2003-06-16,0.036331
2008-12-15,0.036331
1974-03-19,0.000710
1978-06-16,0.001064
1971-09-20,0.000710
1985-12-12,0.003122
1986-06-12,0.003122
1987-06-18,0.003122
1989-12-14,0.005960
1994-09-15,0.017030
2010-03-15,0.036331
1996-09-23,0.027248
1997-12-22,0.031789
1995-06-19,0.022707
1994-12-15,0.017030
1997-06-16,0.031789
2017-09-12,0.133000
1993-12-16,0.014192
2017-12-12,0.139000
2025-09-10,0.289000
1972-09-19,0.000710
1988-09-16,0.003690
1989-06-14,0.004825
2011-09-12,0.054496
2026-03-11,0.300000
1988-03-17,0.003690
1981-12-16,0.001703
1990-09-20,0.005960
2006-03-13,0.036331
2014-09-08,0.072661
2023-03-07,0.263000
1991-03-14,0.007096
2004-06-14,0.036331
2017-03-06,0.133000
2018-06-12,0.139000
2022-09-13,0.250000
1978-09-18,0.001064
1985-06-13,0.003122
1992-03-19,0.011353
1995-12-18,0.022707
2002-06-17,0.036331
2002-12-16,0.036331
2003-03-17,0.036331
2013-06-10,0.065849
2009-03-09,0.036331
2022-12-13,0.263000
1998-09-21,0.036331
1991-06-13,0.007096
1997-09-22,0.031789
1981-03-19,0.001419
2015-03-09,0.072661
2020-03-10,0.176000
2006-06-12,0.036331
2021-12-07,0.250000
1988-06-16,0.003690
1980-12-18,0.001419
2000-03-20,0.036331
2013-03-11,0.059946
2018-12-12,0.160000
1976-09-20,0.001064
1989-03-16,0.004825
1996-12-20,0.027248
2016-09-12,0.124000
1973-03-20,0.000710
2013-09-09,0.065849
1982-03-18,0.001703
1979-06-21,0.000710
1998-03-23,0.031789
2006-12-11,0.036331
2022-03-08,0.250000
1980-06-19,0.001419
1986-03-13,0.003122
1996-03-18,0.022707
2014-03-10,0.065849
2018-03-13,0.139000
2020-06-09,0.176000
2002-03-04,0.036331
2004-03-15,0.036331
2019-09-10,0.160000
1983-12-15,0.002554
1984-09-13,0.003122
1990-03-15,0.005960
1995-09-18,0.022707
1983-09-15,0.002554
2007-06-11,0.036331
2024-12-11,0.289000
1981-06-11,0.000851
1985-03-14,0.003122
1972-03-20,0.000710
2001-12-17,0.036331
2018-09-11,0.139000
1979-12-19,0.001419
1978-12-20,0.001064
2004-09-13,0.036331
2011-03-14,0.036331
2019-06-11,0.160000
1994-03-17,0.014192
2012-06-11,0.059946
2014-06-09,0.072661
1993-06-17,0.014192
1986-12-17,0.003122
1998-12-21,0.036331
2014-12-08,0.072661
1974-09-18,0.000710
1989-09-14,0.005960
2007-09-10,0.036331
1978-03-16,0.001419
1992-12-17,0.011353
1995-03-16,0.018733
2024-09-11,0.276000