f/overrides/event-backup/crcux-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

2.1 KiB

1DateDividends
22026-06-010.037000
32020-12-010.010000
42019-07-010.023000
52020-11-020.008000
62021-11-010.010000
72021-09-010.009000
82022-02-010.011000
92024-05-010.040000
102026-03-020.039000
112020-02-030.018000
122023-12-010.039000
132024-09-030.040000
142024-12-020.039000
152018-03-010.019000
162020-06-010.017000
172020-12-290.263000
182024-02-010.036000
192018-02-010.019000
202022-09-010.023000
212023-05-010.032000
222023-09-010.035000
232023-11-010.042000
242025-08-010.039000
252020-07-010.012000
262021-12-280.013000
272024-10-010.039000
282018-07-020.021000
292018-09-040.023000
302024-11-010.039000
312024-12-300.039000
322025-05-010.040000
332022-12-010.026000
342023-04-030.031000
352019-05-010.024000
362019-06-030.024000
372024-06-030.042000
382021-03-010.011000
392022-11-010.025000
402023-10-020.037000
412018-11-010.023000
422019-03-010.022000
432021-12-010.032000
442022-03-010.014000
452019-11-010.019000
462020-08-030.010000
472025-06-020.044000
482020-10-010.008000
492021-08-020.010000
502025-12-260.040000
512026-02-020.034000
522018-08-010.021000
532021-05-030.011000
542020-09-010.009000
552018-06-010.021000
562019-10-010.021000
572023-08-010.036000
582024-07-010.042000
592019-08-010.021000
602025-02-030.040000
612026-07-010.041000
622024-08-010.040000
632025-12-010.043000
642026-05-010.039000
652018-12-270.023000
662020-05-010.017000
672018-04-020.021000
682017-12-010.017000
692017-12-280.017000
702022-12-280.027000
712025-04-010.038000
722019-12-020.014000
732020-04-010.019000
742026-08-030.041000
752022-10-030.022000
762023-02-010.029000
772024-04-010.044000
782022-05-020.020000
792025-11-030.040000
802018-12-030.023000
812019-02-010.021000
822021-02-010.005000
832022-04-010.016000
842023-07-030.035000
852018-10-010.022000
862025-10-010.041000
872026-04-010.039000
882023-06-010.035000
892024-02-270.033000
902021-07-010.009000
912022-06-010.019000
922022-07-010.024000
932018-05-010.020000
942023-03-010.028000
952023-12-270.037000
962021-04-010.010000
972025-03-030.036000
982025-09-020.042000
992019-12-270.278000
1002021-06-010.015000
1012022-08-010.027000
1022025-07-010.041000
1032019-04-010.024000
1042021-10-010.010000
1052019-09-030.021000
1062020-03-020.018000