f/overrides/event-backup/agbdx-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

655 B

1DateDividends
22013-09-100.432000
32020-03-100.037000
42021-12-210.227000
52023-09-190.056000
62026-06-090.110000
72016-12-200.029000
82022-03-220.044000
92022-09-200.045000
102022-12-210.469000
112026-03-100.026000
122015-12-280.051000
132017-12-190.026000
142020-06-160.038000
152020-12-220.042000
162021-09-210.008000
172022-06-210.039000
182023-12-190.128000
192025-03-250.084000
202014-12-230.465000
212024-06-180.107000
222025-12-160.195000
232015-09-080.009000
242016-12-270.140000
252024-12-170.150000
262013-12-100.037000
272025-09-230.117000
282017-12-260.194000
292018-12-200.601000
302019-03-190.085000
312019-12-200.201000
322022-09-300.045000
332025-06-240.032000