f/overrides/event-backup/lroax-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
22014-03-310.027000
32025-06-300.136000
42011-11-300.017000
52012-04-300.020000
62025-08-290.042000
72012-02-290.022000
82013-08-300.023000
92024-06-280.150000
102025-03-310.229000
112013-09-300.021000
122013-10-310.025000
132018-06-280.126000
142024-09-300.190000
152011-08-310.021000
162012-07-310.028000
172012-10-310.033000
182017-03-310.028000
192018-12-200.041000
202025-12-310.044000
212011-09-300.017000
222013-03-280.016000
232013-12-310.024000
242014-01-310.023000
252014-09-300.120000
262012-01-310.020000
272026-04-300.042000
282026-06-300.042000
292011-10-310.016000
302013-01-310.029000
312015-09-300.054000
322015-12-220.359000
332020-12-180.025000
342022-12-200.121000
352024-12-200.182000
362026-02-270.037000
372026-07-310.044000
382011-12-090.057000
392012-08-310.024000
402012-12-310.033000
412013-02-280.021000
422015-06-300.055000
432021-06-300.039000
442021-12-200.033000
452023-03-310.077000
462026-03-310.044000
472012-12-120.268000
482017-12-210.257000
492018-03-280.099000
502011-12-300.021000
512013-11-290.024000
522014-12-230.197000
532023-12-190.125000
542025-07-310.005000
552012-09-280.024000
562012-11-300.034000
572021-03-310.043000
582024-03-280.156000
592012-05-310.022000
602013-06-280.016000
612014-02-280.023000
622017-06-300.041000
632017-09-290.063000
642023-06-300.107000
652012-06-290.024000
662015-03-310.057000
672018-09-270.091000
682021-09-300.113000
692025-11-280.042000
702013-05-310.022000
712023-09-290.040000
722025-09-300.042000
732026-05-290.043000
742012-03-300.022000
752013-04-300.020000
762013-07-310.020000
772014-12-100.338000
782020-03-310.046000
792025-10-310.043000
802026-01-300.043000