f/overrides/event-backup/iga-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

2.0 KiB

1DateDividends
22026-08-030.085000
32009-10-010.465000
42017-12-280.225000
52024-12-300.085000
62014-04-010.280000
72018-10-010.225000
82019-04-010.225000
92020-10-010.197000
102022-10-030.197000
112009-12-290.372000
122012-04-020.312000
132012-10-010.280000
142026-02-020.085000
152021-07-010.197000
162023-07-030.197000
172024-08-010.085000
182006-07-030.465000
192007-07-020.465000
202018-04-020.225000
212026-07-010.085000
222009-04-010.465000
232010-07-010.335000
242023-10-020.197000
252017-07-030.225000
262019-07-010.225000
272019-10-010.197000
282022-04-010.197000
292025-03-030.085000
302006-12-270.465000
312008-07-010.465000
322008-12-290.465000
332025-10-010.085000
342026-05-010.085000
352016-12-280.225000
362019-12-300.197000
372025-12-300.085000
382010-10-010.335000
392014-12-290.280000
402015-12-290.280000
412024-11-010.085000
422008-04-010.465000
432012-07-020.312000
442022-07-010.197000
452016-10-030.280000
462017-04-030.225000
472013-07-010.280000
482013-10-010.280000
492015-04-010.280000
502021-12-300.197000
512024-05-010.085000
522024-07-010.085000
532025-06-020.085000
542025-11-030.085000
552006-10-020.465000
562011-04-010.335000
572011-12-280.312000
582026-04-010.085000
592026-06-010.085000
602025-08-010.085000
612020-12-300.197000
622025-02-030.085000
632025-05-010.085000
642020-04-010.197000
652024-09-030.085000
662010-12-290.335000
672013-12-270.280000
682014-07-010.280000
692012-12-270.280000
702005-12-280.155000
712010-04-010.372000
722011-10-030.335000
732015-07-010.280000
742016-04-010.280000
752018-07-020.225000
762018-12-280.225000
772023-04-030.197000
782008-10-010.465000
792009-06-300.465000
802014-10-010.280000
812025-09-020.085000
822025-04-010.085000
832025-12-010.085000
842007-10-010.465000
852013-04-010.280000
862020-07-010.197000
872021-04-010.197000
882024-06-030.085000
892024-10-010.085000
902025-07-010.085000
912007-04-020.465000
922007-12-271.575000
932011-07-010.335000
942021-10-010.197000
952022-12-290.197000
962023-12-280.197000
972024-04-010.197000
982024-12-020.085000
992015-10-010.280000
1002016-07-010.280000
1012017-10-030.225000
1022026-03-020.085000