f/overrides/event-backup/fct-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

266 lines
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Plaintext

Date,Dividends
2004-10-01,0.088300
2009-10-01,0.032500
2025-05-01,0.097000
2016-07-01,0.070000
2018-03-01,0.060000
2022-06-01,0.072000
2023-02-01,0.069500
2026-04-01,0.097000
2004-12-02,0.088300
2013-12-02,0.075000
2021-12-01,0.078900
2025-03-03,0.097000
2006-03-01,0.115800
2015-01-02,0.072000
2017-11-01,0.063500
2013-06-03,0.087500
2017-01-03,0.067500
2017-05-01,0.066300
2020-08-03,0.105000
2020-11-02,0.105000
2025-12-01,0.097000
2015-12-01,0.075000
2016-11-01,0.070000
2024-01-02,0.097000
2012-05-01,0.077500
2014-02-03,0.075000
2016-10-03,0.070000
2020-04-01,0.082500
2025-04-01,0.097000
2005-05-03,0.092700
2009-08-03,0.032500
2011-05-02,0.070000
2022-03-01,0.072000
2024-03-01,0.097000
2024-08-01,0.097000
2009-12-01,0.032500
2010-05-03,0.037500
2023-10-02,0.097000
2010-12-01,0.055000
2014-10-01,0.068000
2015-04-01,0.072000
2024-06-03,0.097000
2022-12-01,0.069500
2023-04-03,0.092000
2015-05-01,0.072000
2015-11-02,0.075000
2021-11-01,0.078900
2012-07-02,0.081250
2012-08-01,0.083750
2022-02-01,0.072000
2016-05-02,0.070000
2022-07-01,0.072000
2010-07-01,0.050000
2012-10-01,0.087500
2018-04-02,0.060000
2024-05-01,0.097000
2010-01-04,0.032500
2010-04-01,0.037500
2012-12-27,0.087500
2017-02-01,0.067500
2024-09-03,0.097000
2007-07-02,0.126800
2007-09-04,0.126800
2009-07-01,0.037500
2023-06-01,0.097000
2011-09-01,0.070000
2004-09-01,0.088300
2009-01-02,0.065152
2014-07-01,0.068000
2021-08-02,0.089600
2023-01-03,0.069500
2005-06-01,0.092700
2006-09-01,0.124300
2008-02-01,0.107800
2019-02-01,0.060000
2019-12-02,0.082500
2023-03-02,0.069500
2005-11-01,0.107500
2017-07-03,0.066300
2021-02-01,0.105000
2020-03-02,0.082500
2007-02-01,0.126800
2009-06-01,0.047500
2011-03-01,0.067500
2015-06-01,0.075000
2015-09-01,0.075000
2020-01-02,0.082500
2008-03-03,0.107800
2010-02-01,0.035000
2010-10-01,0.055000
2012-02-01,0.072500
2025-08-01,0.097000
2018-01-02,0.063500
2018-02-01,0.063500
2005-12-01,0.111000
2007-08-01,0.126800
2010-11-01,0.055000
2011-01-03,0.060000
2012-06-01,0.080000
2013-04-01,0.087500
2022-01-03,0.078900
2005-10-03,0.102500
2010-06-01,0.039000
2005-03-04,0.092700
2006-02-01,0.115800
2014-03-03,0.075000
2016-04-01,0.070000
2008-06-02,0.095000
2009-04-01,0.046890
2009-09-01,0.032500
2013-05-01,0.087500
2018-12-03,0.060000
2025-06-02,0.097000
2007-10-01,0.107800
2011-06-01,0.070000
2022-10-03,0.069500
2025-01-02,0.097000
2007-04-02,0.126800
2008-05-01,0.107800
2009-03-02,0.046890
2010-03-01,0.035000
2011-10-03,0.070000
2017-09-01,0.066300
2007-03-01,0.126800
2009-05-01,0.046890
2011-02-01,0.065000
2013-08-01,0.087500
2014-01-02,0.075000
2021-01-04,0.105000
2007-11-01,0.107800
2013-10-01,0.080000
2018-07-02,0.060000
2025-09-02,0.097000
2006-08-01,0.121800
2012-04-02,0.077500
2013-02-01,0.087500
2020-07-01,0.105000
2024-10-01,0.097000
2005-08-01,0.096800
2008-10-01,0.062865
2025-10-01,0.097000
2026-03-02,0.097000
2008-12-01,0.062865
2011-08-01,0.070000
2012-11-01,0.087500
2018-10-01,0.060000
2023-08-01,0.097000
2025-02-03,0.097000
2005-09-01,0.100000
2020-12-01,0.105000
2026-07-01,0.081300
2019-11-01,0.082500
2022-08-01,0.072000
2005-02-01,0.092700
2007-05-01,0.126800
2005-04-01,0.092700
2010-08-02,0.055000
2011-12-01,0.072500
2021-03-01,0.105000
2006-05-01,0.117800
2007-12-03,0.107800
2012-09-04,0.087500
2024-11-01,0.097000
2016-03-01,0.070000
2019-08-01,0.073500
2025-11-03,0.097000
2004-12-29,0.092700
2008-08-01,0.070009
2013-07-01,0.087500
2019-07-01,0.066250
2021-07-01,0.089600
2008-04-01,0.107800
2014-08-01,0.068000
2020-10-01,0.105000
2021-04-01,0.097600
2024-12-02,0.097000
2006-12-27,0.126800
2017-06-01,0.066300
2006-06-01,0.119800
2012-03-01,0.075000
2014-12-01,0.068000
2007-06-01,0.126800
2009-11-02,0.032500
2015-08-03,0.075000
2017-04-03,0.067500
2023-11-01,0.097000
2024-07-01,0.097000
2009-02-02,0.050345
2016-08-01,0.070000
2019-06-03,0.062500
2005-12-28,0.114800
2011-07-01,0.070000
2017-10-02,0.066300
2019-03-01,0.060000
2017-12-01,0.063500
2018-05-01,0.060000
2023-09-01,0.097000
2023-07-03,0.097000
2004-08-02,0.088300
2005-07-01,0.092700
2013-03-01,0.087500
2016-01-04,0.075000
2016-09-01,0.070000
2022-04-01,0.072000
2006-04-03,0.117800
2015-03-02,0.072000
2015-07-01,0.075000
2018-11-01,0.060000
2026-01-02,0.097000
2021-05-03,0.097600
2008-09-02,0.070009
2013-09-03,0.080000
2023-12-01,0.097000
2024-04-01,0.097000
2006-12-01,0.126800
2008-11-03,0.062865
2019-09-03,0.073500
2019-10-01,0.082500
2026-06-01,0.097000
2016-12-01,0.070000
2017-08-01,0.066300
2004-11-01,0.088300
2012-12-03,0.087500
2014-04-01,0.071250
2014-05-01,0.071250
2014-06-02,0.071250
2014-11-03,0.068000
2018-09-04,0.060000
2019-01-02,0.060000
2020-05-01,0.082500
2024-02-01,0.097000
2006-07-03,0.119800
2011-12-28,0.072500
2013-11-01,0.080000
2015-10-01,0.075000
2018-08-01,0.060000
2022-09-01,0.069500
2016-02-01,0.070000
2020-02-03,0.082500
2021-10-01,0.078900
2021-09-01,0.089600
2025-07-01,0.097000
2010-09-01,0.055000
2011-11-01,0.070000
2015-02-02,0.072000
2016-06-01,0.070000
2022-11-01,0.069500
2026-05-01,0.097000
2006-11-01,0.124300
2007-12-27,0.107800
2017-03-01,0.067500
2018-06-01,0.060000
2019-04-01,0.062500
2026-02-02,0.097000
2022-05-02,0.072000
2006-10-02,0.124300
2008-07-01,0.076200
2019-05-01,0.062500
2020-06-01,0.105000
2020-09-01,0.105000
2021-06-01,0.097600
2011-04-01,0.070000
2014-09-02,0.068000
2023-05-01,0.092000