f/overrides/event-backup/gtsox-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

415 B

1DateDividends
22026-07-171.046000
32012-12-131.444000
42013-12-121.505000
52019-12-130.931000
62024-12-161.641000
72015-12-110.714000
82021-12-141.782000
92024-10-020.012000
102025-04-020.025000
112025-10-010.008000
122010-12-130.400000
132014-12-110.650000
142017-12-130.790000
152024-07-030.009000
162025-12-150.991000
172026-04-010.002000
182011-12-120.428000
192016-12-140.606000
202018-12-140.293000
212024-04-030.023000