f/overrides/event-backup/fndsx-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
22021-05-280.010000
32024-02-290.024000
42018-11-300.024000
52019-10-310.022000
62020-08-310.015000
72021-10-290.012000
82022-02-280.012000
92018-12-270.001000
102025-01-310.028000
112025-12-170.009000
122022-08-310.017000
132021-11-300.012000
142023-06-300.021000
152024-07-310.028000
162025-04-300.029000
172018-10-310.025000
182020-12-310.014000
192025-10-310.030000
202025-12-310.030000
212019-04-300.025000
222020-12-040.013000
232026-07-310.031000
242018-06-290.008000
252021-03-310.011000
262023-11-300.024000
272018-10-120.002000
282025-11-280.030000
292023-08-310.023000
302024-12-180.001000
312025-08-290.030000
322018-08-310.025000
332019-02-280.024000
342019-05-310.025000
352021-04-300.011000
362022-12-300.020000
372023-01-310.020000
382019-01-310.025000
392019-07-310.025000
402023-09-290.023000
412024-05-310.027000
422020-03-310.021000
432022-11-300.018000
442024-08-300.028000
452025-07-310.030000
462025-09-300.030000
472024-06-280.027000
482022-10-310.018000
492025-02-280.027000
502020-01-310.023000
512020-11-300.012000
522026-05-290.031000
532023-12-290.025000
542024-03-280.026000
552025-05-300.030000
562019-09-300.023000
572019-12-310.023000
582023-02-280.019000
592023-07-310.022000
602025-06-300.029000
612020-04-300.019000
622021-08-310.012000
632021-12-310.015000
642019-03-290.025000
652026-06-300.030000
662020-02-280.020000
672020-07-310.017000
682021-10-080.008000
692018-12-310.025000
702019-08-300.024000
712023-03-310.021000
722024-09-300.027000
732021-09-300.011000
742018-07-310.023000
752021-02-260.010000
762019-06-280.024000
772022-06-300.014000
782026-03-310.031000
792026-02-270.029000
802021-01-290.016000
812022-07-290.016000
822023-05-310.022000
832020-09-300.015000
842022-04-290.014000
852019-12-060.018000
862025-03-310.029000
872024-10-310.028000
882024-11-290.027000
892026-01-300.030000
902023-10-310.024000
912022-05-310.013000
922024-04-300.026000
932020-10-300.015000
942021-07-300.012000
952022-03-310.013000
962024-12-310.028000
972020-06-300.017000
982020-10-090.036000
992019-10-110.030000
1002021-06-300.011000
1012022-01-310.015000
1022023-04-280.021000
1032018-09-280.024000
1042020-05-290.019000
1052022-09-300.017000
1062024-01-310.025000
1072019-11-290.021000
1082026-04-300.030000