f/overrides/event-backup/gdx-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

395 B

1DateDividends
22006-12-210.115000
32009-12-230.111000
42010-12-230.401000
52011-12-230.150000
62018-12-200.105000
72019-12-230.191000
82007-12-240.745000
92012-12-240.462000
102015-12-210.116000
112021-12-200.535000
122020-12-210.190000
132022-12-190.476000
142023-12-180.500000
152024-12-230.403000
162025-12-220.633000
172013-12-230.191000
182014-12-220.121000
192016-12-190.055000
202017-12-180.176000