f/overrides/event-backup/fex-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

1.3 KiB

1DateDividends
22013-09-200.106000
32019-06-140.188000
42019-12-130.254000
52023-03-240.296000
62008-06-230.111000
72024-12-130.419000
82026-03-260.294000
92026-06-250.267000
102018-06-210.191000
112019-09-250.260000
122020-06-250.215000
132023-09-220.303000
142020-03-260.223000
152020-09-240.197000
162021-09-230.200000
172008-12-230.180000
182011-06-210.117000
192014-03-250.109000
202016-12-210.201000
212019-03-210.161000
222024-06-270.255000
232024-09-260.350000
242009-06-230.114000
252009-12-220.091000
262015-09-230.136000
272016-03-230.121000
282014-12-230.208000
292015-06-240.138000
302017-09-210.143000
312010-06-220.103000
322015-12-230.208000
332021-03-250.086000
342013-06-210.119000
352016-06-220.157000
362018-03-220.122000
372018-09-140.130000
382020-12-240.249000
392024-03-210.211000
402025-03-270.299000
412025-06-260.271000
422013-03-210.080000
432013-12-180.116000
442015-03-250.093000
452016-09-210.151000
462007-12-210.163000
472021-06-240.169000
482022-03-250.219000
492023-06-270.244000
502023-12-220.399000
512010-12-210.143000
522012-06-210.153000
532017-06-220.161000
542017-12-210.205000
552011-12-210.180000
562022-06-240.241000
572022-12-230.473000
582025-09-250.324000
592014-06-240.150000
602014-09-230.127000
612017-03-230.116000
622018-12-180.256000
632021-12-230.287000
642025-12-120.409000
652012-12-210.286000
662022-09-230.353000