f/overrides/event-backup/fgtzx-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

1.3 KiB

1DateDividends
22013-12-300.493000
32014-12-300.471000
42021-12-302.422000
52022-06-150.595000
62005-12-290.157000
72006-03-130.054000
82006-09-150.057000
92013-06-260.225000
102017-03-290.093000
112022-06-300.045000
122012-03-280.043000
132023-06-150.364000
142024-09-300.071000
152009-06-300.005000
162019-03-270.014000
172021-03-290.009000
182023-06-300.090000
192024-03-280.075000
202025-06-160.885000
212010-12-290.221000
222013-03-260.014000
232018-06-270.276000
242021-09-280.037000
252023-03-310.022000
262025-09-300.084000
272017-06-280.436000
282018-03-270.004000
292025-12-300.920000
302008-03-310.009000
312009-12-290.118000
322015-06-260.644000
332020-03-270.019000
342023-09-290.076000
352024-12-300.274000
362014-03-270.006000
372019-06-260.123000
382026-06-300.790000
392010-03-290.005000
402011-03-290.068000
412020-09-280.050000
422020-12-300.365000
432023-12-280.078000
442024-06-280.086000
452006-12-280.235000
462008-12-290.242000
472011-12-280.211000
482014-06-260.307000
492019-12-301.930000
502007-03-120.004000
512009-09-280.098000
522015-03-270.003000
532015-12-300.690000
542017-12-280.954000
552022-09-300.052000
562012-12-280.241000
572016-03-290.004000
582018-12-281.330000
592025-06-300.113000
602007-12-280.280000
612009-03-310.023000
622020-06-260.614000
632007-09-170.063000
642016-06-280.329000
652016-12-290.180000
662021-06-280.437000
672022-12-290.116000
682026-03-310.014000