f/overrides/event-backup/fhylx-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

2.2 KiB

1DateDividends
22019-02-280.023000
32019-03-290.028000
42022-02-280.009000
52024-05-310.029000
62022-07-290.030000
72025-12-310.031000
82019-05-310.029000
92019-12-310.032000
102020-05-290.030000
112021-12-310.046000
122020-04-300.028000
132024-08-300.028000
142026-02-270.028000
152026-07-310.031000
162025-07-310.031000
172017-10-310.031000
182017-12-290.028000
192022-09-300.028000
202025-03-310.029000
212024-12-310.028000
222026-06-300.030000
232017-11-300.030000
242019-12-090.009000
252020-12-310.042000
262024-07-310.029000
272018-04-300.029000
282018-05-310.029000
292023-08-310.031000
302018-01-310.027000
312026-05-290.029000
322019-06-280.028000
332021-01-290.025000
342018-07-310.032000
352018-11-300.037000
362018-12-100.057000
372019-04-300.030000
382022-10-310.029000
392024-02-290.021000
402022-08-230.027000
412026-03-310.028000
422019-10-310.031000
432020-09-300.025000
442023-04-280.031000
452023-05-310.032000
462022-04-290.029000
472023-06-300.032000
482017-09-290.031000
492020-10-300.024000
502025-11-280.030000
512025-06-300.030000
522024-09-300.029000
532018-10-310.036000
542020-11-300.024000
552021-03-310.024000
562023-03-310.029000
572022-11-300.034000
582023-12-290.033000
592021-07-300.025000
602025-09-300.031000
612018-03-290.027000
622023-10-310.029000
632025-08-290.031000
642018-12-310.042000
652022-01-310.021000
662022-08-310.029000
672024-03-280.027000
682022-12-300.039000
692023-01-310.027000
702024-04-300.029000
712024-11-290.030000
722021-09-300.027000
732025-10-310.030000
742018-08-310.029000
752020-01-310.028000
762021-12-080.015000
772023-11-300.036000
782025-05-300.029000
792018-06-290.029000
802020-06-300.029000
812020-08-310.025000
822021-02-260.008000
832019-07-310.028000
842026-04-300.028000
852019-09-300.028000
862021-04-300.024000
872021-05-280.025000
882023-09-290.032000
892020-03-310.028000
902021-06-300.025000
912023-07-310.031000
922024-06-280.029000
932024-10-310.030000
942018-02-280.024000
952019-11-290.032000
962021-08-310.026000
972017-08-310.031000
982021-11-300.029000
992023-02-280.016000
1002025-04-300.029000
1012022-03-310.026000
1022022-05-310.029000
1032018-09-280.034000
1042019-08-300.028000
1052021-10-290.028000
1062025-01-310.027000
1072024-01-310.023000
1082026-01-300.029000
1092019-01-310.029000
1102020-02-280.027000
1112020-07-310.026000
1122022-06-300.030000
1132025-02-280.027000