f/overrides/event-backup/laffx-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

232 lines
4.5 KiB
Plaintext

Date,Dividends
1989-08-21,0.120000
1997-08-15,0.075000
2010-03-31,0.024000
1995-12-29,0.040000
2005-02-11,0.025000
2007-11-20,1.662000
2008-12-23,0.026000
2013-12-31,0.116000
2017-12-29,0.084000
1999-11-18,1.820000
2005-11-22,1.066000
2015-06-30,0.091000
2020-03-27,0.080000
1989-05-12,0.120000
2011-12-30,0.041000
2018-12-27,0.076000
1998-08-14,0.060000
1999-05-20,0.060000
2020-12-29,0.063000
1988-12-29,0.060000
2002-02-15,0.030000
1983-08-12,0.130000
1985-05-10,0.140000
1990-08-20,0.110000
1994-02-18,0.040000
2021-06-29,0.060000
2023-03-30,0.074000
2025-06-24,0.058000
2025-09-23,0.056000
1980-08-15,0.130000
1996-02-15,0.035000
2000-12-21,0.030000
2002-08-22,0.050000
2003-11-25,0.052000
2005-05-19,0.050000
2006-05-18,0.050000
1986-11-14,1.270000
2007-05-18,0.052000
2017-03-31,0.088000
2023-06-29,0.074000
1987-11-13,1.470000
1995-08-18,0.075000
2012-03-30,0.039000
2013-03-28,0.048000
2018-11-20,1.223000
1986-02-14,0.140000
2020-09-29,0.070000
1982-08-13,0.140000
1993-12-30,0.040000
1996-12-27,0.040000
1997-12-23,0.040000
2001-02-15,0.030000
1985-08-16,0.140000
2008-08-15,0.052000
2009-05-15,0.005000
2016-03-31,0.096000
2013-09-27,0.077000
1982-02-12,0.140000
1996-05-09,0.075000
1991-11-15,0.430000
1992-12-30,0.050000
1994-11-18,0.845000
2007-12-21,0.026000
2014-12-31,0.094000
2016-12-30,0.107000
2017-06-30,0.087000
2024-03-27,0.067000
1983-11-11,0.130000
2000-02-16,0.030000
2000-11-21,1.451000
2003-12-19,0.025000
2011-06-30,0.032000
2022-12-28,0.073000
2023-12-27,0.076000
1982-11-12,0.140000
1984-05-11,0.130000
1980-02-15,0.120000
1981-11-13,0.140000
1990-12-27,0.050000
1994-05-16,0.080000
1997-05-08,0.075000
2015-03-31,0.087000
2026-06-26,0.050000
1988-12-30,0.060000
1991-05-10,0.100000
2013-06-28,0.051000
1989-11-10,0.470000
1996-08-16,0.075000
1983-05-13,0.130000
2025-03-27,0.060000
2006-02-10,0.025000
2011-03-31,0.027000
2014-06-27,0.082000
2016-09-30,0.086000
2021-09-29,0.074000
2026-03-27,0.058000
1993-05-21,0.090000
2021-11-23,0.453000
2022-09-29,0.074000
1997-12-24,0.040000
2009-12-30,0.017000
1985-02-15,0.140000
2012-09-28,0.050000
1988-11-11,0.470000
2004-12-21,0.025000
1987-08-14,0.130000
1993-11-19,0.680000
1995-05-11,0.075000
2008-02-15,0.026000
2018-06-29,0.086000
1986-08-15,0.140000
1990-02-22,0.050000
2020-06-30,0.080000
1987-12-30,0.060000
1988-05-13,0.120000
2007-08-17,0.052000
1984-08-10,0.130000
2022-11-22,0.923000
2025-12-30,0.046000
2019-06-28,0.082000
1998-12-23,0.030000
2001-11-21,0.626000
2006-08-17,0.050000
2012-06-29,0.046000
1999-02-12,0.030000
2005-12-20,0.025000
1985-11-15,0.140000
1988-08-12,0.120000
1991-08-19,0.100000
1995-12-28,0.040000
2001-08-22,0.060000
2011-09-30,0.035000
2017-11-21,1.541000
2024-09-25,0.064000
1989-02-10,0.060000
2016-11-22,0.817000
1980-05-16,0.120000
1991-12-30,0.050000
1995-02-16,0.035000
1995-11-16,1.265000
2019-03-29,0.088000
1989-12-28,0.060000
2003-08-21,0.050000
1991-12-27,0.050000
1992-05-15,0.100000
1997-11-13,1.465000
1989-12-29,0.060000
1998-02-10,0.030000
1986-05-16,0.140000
1998-05-06,0.060000
2002-05-23,0.050000
2004-02-12,0.025000
1998-12-24,0.030000
2003-05-22,0.050000
2010-09-30,0.023000
2014-09-30,0.091000
1980-11-14,0.140000
1994-08-22,0.080000
1994-12-30,0.040000
2001-05-23,0.060000
1990-05-18,0.110000
2002-11-20,0.462000
2014-03-28,0.085000
1981-08-14,0.140000
1999-08-20,0.060000
1983-02-11,0.130000
1993-08-23,0.080000
2012-12-28,0.055000
2010-12-17,0.028000
2025-12-02,1.282000
1990-11-16,0.640000
1996-12-30,0.040000
2000-08-18,0.060000
2006-12-21,0.025000
2008-05-16,0.052000
2024-11-26,0.852000
1990-12-26,0.050000
1992-12-29,0.050000
2007-02-16,0.026000
2008-11-21,0.052000
2022-03-30,0.065000
1987-02-13,0.130000
1992-11-19,0.770000
2021-12-29,0.079000
2023-09-28,0.060000
2001-12-20,0.030000
2016-06-30,0.083000
2022-06-29,0.087000
1984-11-16,0.140000
1993-02-24,0.040000
2002-12-20,0.025000
2004-08-20,0.050000
2015-11-24,1.146000
2015-12-31,0.089000
2018-09-28,0.082000
1991-02-15,0.050000
1998-11-19,1.010000
2006-11-21,1.052000
2009-02-13,0.026000
2017-09-29,0.091000
1987-05-15,0.130000
1994-12-29,0.040000
1999-12-23,0.030000
2005-08-18,0.050000
2019-09-27,0.085000
1988-02-12,0.060000
2004-05-21,0.050000
1981-05-15,0.140000
1984-02-10,0.130000
1993-12-29,0.040000
1996-11-22,1.105000
2000-05-18,0.060000
2010-06-30,0.017000
1982-05-14,0.140000
1992-08-17,0.100000
2003-02-14,0.025000
2004-11-23,0.300000
2024-12-27,0.120000
1992-02-18,0.050000
1981-02-13,0.140000
1987-12-31,0.060000
2014-11-21,0.804000
1997-02-13,0.035000
2015-09-30,0.092000
2018-03-29,0.083000
2019-11-21,0.336000
2021-03-30,0.051000
2010-04-30,0.044000
2019-12-27,0.090000
2024-06-27,0.073000