f/overrides/event-backup/fagax-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

556 B

1DateDividends
22009-12-110.131000
32015-12-046.636000
42025-12-268.585000
52000-01-070.090000
61998-12-112.130000
72017-12-264.968000
81998-01-020.210000
92002-06-280.034000
102004-12-100.180000
112018-12-267.896000
122001-12-140.260000
132016-01-080.605000
142005-12-090.089000
151999-12-105.540000
162000-12-153.930000
172002-12-130.170000
181996-12-060.720000
191999-01-080.030000
202002-07-310.034000
212016-12-277.382000
222019-12-273.641000
231997-12-122.990000
242020-12-297.730000
252002-10-310.032000
262003-12-120.080000
272021-12-2814.619000
282001-01-050.030000