f/overrides/event-backup/carz-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

1015 B

1DateDividends
22023-09-220.120000
32024-12-130.289000
42012-09-210.025000
52015-09-230.039000
62019-12-130.302000
72020-09-240.043000
82022-09-230.115000
92013-12-180.065000
102017-06-220.452000
112017-09-210.166000
122025-12-121.077000
132017-12-210.267000
142023-06-270.348000
152014-03-250.022000
162014-06-240.395000
172015-03-250.042000
182015-06-240.323000
192016-06-220.397000
202021-09-230.085000
212022-12-230.236000
222012-12-210.067000
232017-03-230.003000
242018-12-180.244000
252019-03-210.055000
262020-06-250.106000
272011-12-210.024000
282012-06-210.136000
292020-12-240.178000
302021-12-231.057000
312022-03-250.066000
322024-06-270.266000
332013-06-210.223000
342016-12-210.260000
352018-09-140.110000
362019-09-250.263000
372021-06-240.207000
382024-09-260.057000
392025-06-260.297000
402011-06-210.047000
412014-09-230.012000
422018-06-210.540000
432023-03-240.106000
442023-12-220.223000
452022-06-240.227000
462025-09-250.289000
472014-12-230.203000
482015-12-230.189000
492016-03-230.067000
502016-09-210.128000
512019-06-140.470000