f/overrides/event-backup/meikx-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

1.6 KiB

1DateDividends
22022-06-230.247000
32016-06-280.181000
42018-06-270.228000
52019-09-260.203000
62022-03-240.230000
72012-12-110.354000
82017-03-290.153000
92023-09-210.244000
102007-03-280.087000
112007-06-270.109000
122009-06-250.094000
132010-12-090.105000
142019-03-270.163000
152017-09-270.151000
162020-06-250.194000
172023-03-230.207000
182024-09-260.236000
192008-06-260.101000
202009-09-280.069000
212015-06-250.178000
222017-06-280.165000
232025-06-260.255000
242014-09-250.200000
252015-09-280.163000
262016-12-130.929000
272026-03-260.323000
282006-09-270.133000
292009-03-260.079000
302010-03-250.069000
312010-06-240.093000
322009-12-100.107000
332014-06-260.175000
342026-06-250.218000
352017-12-211.425000
362023-12-143.388000
372008-09-250.092000
382013-12-100.757000
392015-03-260.232000
402016-09-270.138000
412021-03-250.193000
422006-12-070.103000
432010-09-280.069000
442013-09-250.131000
452020-09-240.197000
462006-06-280.097000
472024-03-260.232000
482024-12-123.875000
492022-09-220.256000
502023-06-220.215000
512011-12-080.140000
522014-03-270.258000
532020-12-170.632000
542021-09-230.207000
552012-09-250.111000
562015-12-101.433000
572018-09-260.156000
582025-09-250.223000
592012-03-220.088000
602013-03-270.128000
612021-12-161.260000
622019-12-190.741000
632007-09-260.090000
642011-03-240.074000
652013-06-260.158000
662018-12-200.793000
672024-06-250.249000
682007-12-110.131000
692008-12-110.124000
702012-06-260.131000
712020-03-260.209000
722025-12-114.121000
732011-06-230.106000
742014-12-111.110000
752021-06-240.206000
762022-12-152.954000
772019-06-260.350000
782025-03-250.253000
792008-03-270.063000
802011-09-270.094000
812016-03-290.138000
822018-03-270.149000