f/overrides/event-backup/gbli-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

695 B

1DateDividends
22019-06-200.250000
32020-06-220.250000
42021-12-170.250000
52022-06-160.250000
62023-10-050.250000
72019-12-230.250000
82024-03-200.350000
92025-03-210.350000
102026-03-200.350000
112018-06-210.250000
122021-03-190.250000
132022-10-030.250000
142022-12-220.250000
152023-03-230.250000
162025-09-290.350000
172018-12-210.250000
182019-03-210.250000
192020-12-230.250000
202021-09-220.250000
212024-09-300.350000
222024-12-240.350000
232018-03-200.250000
242020-09-240.250000
252022-03-180.250000
262023-06-220.250000
272023-12-210.250000
282019-09-250.250000
292021-06-180.250000
302025-12-220.350000
312026-06-180.350000
322024-06-210.350000
332025-06-200.350000
342018-09-260.250000
352020-03-230.250000