f/overrides/event-backup/fkgrx-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

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Date,Dividends
2003-12-01,0.029000
2019-12-02,6.449000
1981-01-02,0.055000
1993-12-07,0.297000
2008-12-01,0.307000
2021-12-01,13.821000
1989-12-22,0.206000
1987-01-15,0.150000
1994-12-06,0.135000
2002-12-02,0.039000
2004-12-01,0.079000
2007-12-03,0.130000
2013-12-02,0.295000
2016-12-01,2.889000
1985-01-02,0.130000
2022-12-15,10.714000
2024-12-20,11.138000
2017-12-01,2.616000
1997-12-01,0.701000
2006-12-01,0.106000
2014-12-01,0.186000
2025-12-22,19.349000
1982-01-04,0.050000
1995-12-01,0.164000
1998-12-01,0.649000
2001-12-03,0.200000
2005-12-01,0.064000
2012-12-03,0.141000
2018-12-03,1.482000
2023-12-20,7.676000
1990-12-03,0.268000
2009-12-01,0.282000
2010-12-01,0.177000
2011-12-01,0.281000
2015-12-01,2.847000
2020-12-01,10.798000
1986-01-02,0.130000
1988-12-23,0.221000
1991-12-02,0.706000
1992-12-01,0.189000
1980-01-02,0.050000
1984-01-03,0.100000
1987-12-28,0.202000
1996-12-02,0.429000
1999-12-01,0.718000
2000-12-01,2.069000
2010-04-30,0.028000
1983-01-03,0.063000