f/overrides/event-backup/figrx-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
1990-12-21,0.430000
1994-12-09,0.530000
2004-12-03,0.270000
2007-12-07,2.082000
2013-12-06,0.784000
2014-12-05,0.257000
2008-12-05,0.336000
1987-06-12,0.020000
1991-12-20,0.170000
1992-12-18,0.320000
1993-12-10,0.110000
1995-12-08,0.600000
1996-12-06,0.660000
2002-07-31,0.036000
2011-12-02,0.406000
2012-12-07,0.581000
1987-12-09,0.030000
2000-12-08,3.170000
2003-12-05,0.180000
2017-12-08,2.334000
2019-12-06,1.057000
2021-12-03,5.766000
2021-12-28,0.151000
2016-12-09,0.661000
2020-12-04,1.963000
2025-12-12,3.749000
1998-12-04,0.720000
2002-10-31,0.030000
2002-12-06,0.090000
2015-12-04,0.414000
2023-12-08,0.847000
1997-12-05,1.250000
2005-12-02,1.705000
2009-12-04,0.389000
2010-04-07,0.014000
2010-12-03,0.578000
2025-12-29,0.218000
2024-12-13,1.379000
1987-09-04,0.040000
1989-12-19,0.160000
1999-12-03,1.830000
2002-06-28,0.037000
2005-04-22,0.037000
2006-12-01,1.356000
2018-12-07,1.404000
1988-12-20,0.200000
2010-12-30,0.060000
2022-12-09,0.140000