f/overrides/event-backup/hadax-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
1994-07-29,0.360000
1995-01-31,2.450000
1989-07-31,0.430000
1992-02-28,0.050000
1996-12-31,0.530000
2000-06-28,26.350000
2021-12-22,0.631000
1992-08-31,0.520000
2003-12-29,0.219000
2015-08-19,0.134000
1985-07-31,0.480000
1989-02-28,0.460000
2022-08-26,4.136000
1985-04-30,0.550000
1987-10-30,0.040000
1993-08-31,0.490000
1996-01-31,4.890000
1997-03-31,0.420000
2004-12-15,0.261000
1987-08-31,0.480000
1987-02-27,0.040000
1994-03-31,0.480000
1995-06-30,0.590000
1984-06-29,0.050000
2007-06-19,0.021000
1994-02-28,0.440000
1985-03-29,0.060000
1985-06-28,0.050000
1985-12-31,0.540000
1990-09-28,0.050000
1994-10-31,0.390000
1984-10-31,0.590000
2003-06-26,0.298000
1989-01-31,1.560000
1984-08-31,0.670000
1983-06-30,0.410000
1986-03-31,0.510000
1987-01-30,0.170000
2000-12-28,1.610000
2017-08-24,0.141000
1996-06-28,0.450000
2016-08-25,0.329000
2023-12-22,0.522000
1991-01-31,1.470000
1994-05-31,0.470000
1984-05-31,0.660000
1986-08-29,0.050000
1996-11-29,0.470000
1997-02-28,10.310000
1983-07-29,0.030000
1987-12-31,2.920000
1988-02-29,0.510000
1990-11-30,0.610000
1990-12-31,0.620000
1991-07-31,0.480000
1986-05-30,0.060000
1998-12-31,5.890000
1996-02-29,0.460000
1986-04-30,0.450000
1993-12-31,0.410000
1988-01-29,0.030000
1993-06-30,0.440000
1987-04-30,0.380000
1995-11-30,0.540000
2024-08-23,1.833000
1988-10-31,0.340000
1990-07-31,0.530000
1987-09-30,0.450000
1995-02-28,0.520000
2020-12-21,0.699000
1990-05-31,0.650000
1991-02-28,0.570000
1989-05-31,0.680000
1989-08-31,0.600000
1987-05-29,0.050000
2017-12-20,0.569000
1999-02-26,24.770000
2005-06-22,0.276000
1984-07-31,0.530000
1983-08-31,0.550000
1986-10-31,0.270000
1988-07-29,0.030000
1990-10-31,0.500000
1992-06-30,0.610000
1996-07-31,0.500000
1983-10-31,0.360000
1986-02-28,0.560000
2015-12-22,0.384000
2018-08-23,1.309000
1994-04-29,0.310000
2009-08-27,0.023000
1997-01-31,0.420000
1991-12-31,0.550000
1994-06-30,0.470000
2022-12-21,0.417000
1991-05-31,0.610000
1991-10-31,0.440000
1996-05-30,0.590000
2024-12-20,0.822000
1985-10-31,0.410000
1993-04-30,0.340000
1988-09-30,0.440000
1992-05-29,0.050000
2020-08-27,1.408000
1986-12-31,0.400000
1987-11-30,0.510000
1996-08-30,0.520000
2008-06-23,0.037000
1986-01-31,4.530000
1992-11-30,0.520000
1991-06-28,0.050000
1984-09-28,0.060000
1990-02-28,0.580000
1989-11-30,0.540000
1990-03-30,0.060000
1986-06-30,0.500000
1988-08-31,0.520000
1989-04-28,0.040000
1996-04-30,0.450000
2009-12-17,0.334000
2016-12-21,0.441000
1988-03-31,0.420000
1993-03-31,0.500000
1994-12-30,0.570000
1983-11-30,0.480000
1983-12-30,0.040000
2006-12-13,0.570000
1995-08-31,0.590000
1994-11-30,0.550000
1991-11-29,0.060000
1986-07-31,0.450000
1989-03-31,0.460000
1993-09-30,0.450000
1985-11-29,0.050000
1987-03-31,0.430000
1992-07-31,0.350000
1993-01-29,7.250000
1999-12-28,6.170000
1985-08-30,0.060000
1990-01-31,5.940000
1993-07-30,0.330000
1985-05-31,0.710000
1989-06-30,0.540000
2018-12-21,0.710000
1983-09-30,0.390000
1989-12-29,0.060000
1992-03-31,0.550000
1996-09-30,0.490000
1983-05-31,0.760000
1984-02-28,0.530000
1984-12-31,0.570000
2014-12-22,0.383000
1984-04-30,0.440000
1990-06-29,0.060000
1985-09-30,0.510000
1995-07-31,0.440000
1984-03-30,0.050000
1988-12-30,0.050000
1985-01-31,0.500000
2019-12-23,0.538000
1992-04-30,0.340000
1995-12-29,0.530000
2021-08-27,1.601000
1988-06-30,0.410000
1992-09-30,0.550000
1983-04-29,0.070000
1984-01-31,0.410000
1996-10-31,0.380000
1988-05-31,0.550000
1990-04-30,0.430000
1990-08-31,0.610000
1992-12-31,0.530000
1993-11-30,0.480000
1995-10-31,0.460000
1987-07-31,0.380000
2004-06-29,0.210000
2019-08-27,2.676000
1988-11-30,0.480000
1994-09-30,0.510000
1997-04-30,0.400000
1998-02-27,9.020000
1987-06-30,0.460000
1991-08-30,0.060000
2023-08-25,0.806000
1991-03-28,0.060000
1989-09-29,0.050000
1994-08-31,0.520000
1995-04-28,0.440000
1996-03-29,0.520000
2025-12-19,0.786000
1985-02-28,0.620000
1986-09-30,0.390000
1995-09-29,0.540000
2005-12-19,0.498000
1989-10-31,0.500000
1992-01-31,4.980000
1984-11-30,0.600000
1988-04-29,0.030000
1992-10-30,0.030000
1994-01-31,5.560000
2025-08-25,2.700000
1991-04-30,0.470000
1991-09-30,0.520000
1986-11-28,0.040000
1993-05-28,0.430000
2008-12-16,0.538000
1993-02-26,0.460000
1995-03-31,0.630000
1993-10-29,0.030000
1995-05-31,0.590000
1997-12-31,3.720000
2007-12-17,0.511000