f/overrides/event-backup/ealcx-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

475 B

1DateDividends
22014-12-162.139000
32017-07-260.029000
42017-12-121.280000
52021-12-093.361000
62013-12-172.485000
72008-03-110.033000
82013-08-010.216000
92015-12-150.363000
102016-06-150.428000
112020-08-180.505000
122020-12-102.006000
132022-12-081.516000
142007-12-240.190000
152024-12-052.910000
162015-05-210.604000
172018-12-043.307000
182025-12-046.111000
192012-12-200.184000
202005-12-210.402000
212006-12-270.323000
222019-12-032.538000
232023-12-073.051000
242004-12-270.074000