f/overrides/event-backup/fcntx-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

1.5 KiB

1DateDividends
21988-12-150.032000
32003-12-260.004000
41998-12-310.445000
52019-02-080.106000
62025-02-070.175000
71993-12-170.215000
82010-12-170.030400
92021-02-120.400000
101984-12-170.029000
111995-12-220.322000
121999-02-050.052000
132014-12-120.617100
142025-12-051.090000
152020-02-070.097000
162023-02-100.186000
171983-12-190.045000
181991-12-200.117000
192001-12-280.022000
202006-02-030.128000
212009-12-180.018300
222002-12-270.005000
232005-12-230.119000
241993-02-050.028000
252016-02-050.063700
262018-12-070.821000
272021-12-101.627000
282020-12-111.246000
292006-12-220.560000
302011-12-280.000400
312012-12-140.083700
322013-02-080.074500
332014-02-070.097000
342011-02-040.008500
352019-12-130.464000
361997-02-070.071000
372000-12-290.539000
382004-02-060.001000
392005-02-040.001000
402008-12-260.021000
411986-02-100.012000
421992-02-070.065000
431998-02-060.007000
442004-12-230.003500
452016-12-090.311500
462017-02-100.067600
471990-12-210.009000
481999-12-220.998000
492002-06-070.230000
502007-12-280.425000
512011-12-160.009800
522009-02-130.001500
532015-12-110.432100
542017-12-080.687700
551980-12-150.051000
561986-12-290.013000
571996-12-200.183000
581997-12-260.420000
592007-02-020.067000
602022-02-040.215000
612024-02-160.013000
621996-02-020.200000
632013-12-130.671500
642000-02-040.147000
652008-02-080.065000
662018-02-090.185800
671981-12-140.063000
681982-12-200.050000
691985-12-230.025000
701989-12-140.132000
711992-12-180.147000
722024-12-060.868000
732026-02-060.042000
741994-02-040.022000
752010-02-050.009000
762015-02-060.095000
772022-12-091.220000
782023-12-080.499000