f/overrides/event-backup/eps-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

1.5 KiB

1DateDividends
22024-12-260.250000
32025-09-250.225000
42020-12-210.200000
52021-12-270.217000
62014-09-220.106000
72017-03-270.111667
82018-09-250.156000
92020-06-230.190000
102023-03-270.190000
112025-03-260.195000
122011-09-260.071667
132014-03-240.087333
142011-03-210.055000
152016-03-210.109333
162022-03-250.170000
172025-12-260.245000
182008-06-230.062333
192008-12-220.083000
202015-12-210.153000
212017-06-260.116667
222019-06-240.160000
232021-06-240.185000
242024-06-250.225000
252024-09-250.220000
262009-06-220.058667
272015-03-230.110667
282026-06-250.225000
292012-12-240.116333
302019-12-230.164000
312008-09-220.067667
322011-06-220.070667
332022-09-260.215000
342012-03-260.065333
352017-12-260.138000
362016-12-230.150333
372008-03-240.071667
382010-06-280.063000
392012-06-250.083333
402013-12-240.108333
412015-09-210.121667
422020-09-220.175000
432021-03-250.169000
442009-03-230.068667
452010-12-220.081000
462013-03-220.073667
472013-09-230.084333
482016-06-200.113333
492023-06-260.220000
502026-03-260.200000
512007-03-260.030000
522011-12-210.089000
532019-03-260.125000
542007-12-170.075000
552016-09-260.138333
562018-06-250.146000
572022-12-230.223000
582015-06-220.112667
592017-09-260.126667
602014-06-230.096667
612018-12-240.164000
622022-06-240.205000
632009-09-210.053667
642014-12-190.107333
652013-06-240.083333
662024-03-220.205000
672007-06-250.071000
682009-12-210.069333
692010-09-200.058333
702007-09-240.062667
712010-03-290.043667
722019-09-240.175000
732020-03-240.179000
742021-09-240.190000
752023-09-250.215000
762023-12-220.240000
772025-06-250.230000
782012-09-240.093000
792018-03-200.103000