f/overrides/event-backup/facnx-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

435 B

1DateDividends
22019-12-062.169000
32009-12-040.388000
42013-12-060.347000
52014-12-057.718000
62016-12-090.641000
72017-12-081.076000
82018-12-073.020000
92021-12-033.124000
102023-12-081.966000
112008-12-300.015000
122011-12-020.618000
132012-12-070.568000
142025-12-124.214000
152024-12-134.675000
162007-12-073.682000
172010-12-030.779000
182010-12-300.010000
192022-12-092.199000
202008-12-050.059000
212015-12-040.478000
222020-12-041.219000