f/overrides/event-backup/lmbsx-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

2.4 KiB

1DateDividends
22020-11-300.070000
32025-02-280.034000
42025-11-280.037000
52017-05-310.025000
62020-09-300.033000
72022-09-300.028000
82024-11-290.035000
92026-07-310.039000
102017-08-310.028000
112018-01-310.035000
122018-09-280.044000
132024-08-300.032000
142025-10-310.038000
152024-09-300.033000
162019-04-300.039000
172020-04-300.030000
182021-12-310.025000
192024-03-280.035000
202024-04-300.035000
212016-08-310.033000
222016-10-310.032000
232018-02-280.034000
242018-08-310.044000
252026-04-300.039000
262017-07-310.026000
272023-10-310.033000
282023-11-300.045000
292026-06-300.038000
302022-11-300.041000
312023-06-300.033000
322018-06-290.039000
332018-10-310.042000
342019-11-290.048000
352020-05-290.033000
362022-08-310.032000
372021-11-300.037000
382020-02-280.023000
392021-09-300.019000
402022-01-310.023000
412025-09-300.038000
422026-03-310.039000
432020-07-310.029000
442020-08-310.028000
452024-01-310.034000
462024-07-310.034000
472025-12-310.039000
482019-05-310.046000
492021-08-310.024000
502022-10-310.030000
512023-12-290.032000
522025-01-310.037000
532016-11-300.069000
542017-01-310.025000
552017-09-290.028000
562019-06-280.041000
572024-12-310.040000
582018-03-290.036000
592019-09-300.045000
602024-02-290.032000
612021-02-260.023000
622025-04-300.036000
632021-10-290.020000
642019-10-310.037000
652020-03-310.027000
662021-03-310.029000
672023-01-310.029000
682026-05-290.039000
692018-11-300.165000
702019-08-300.043000
712021-06-300.029000
722025-05-300.035000
732020-12-310.028000
742022-03-310.031000
752025-06-300.035000
762017-04-280.027000
772021-01-290.021000
782023-07-310.034000
792019-02-280.040000
802021-04-300.028000
812022-05-310.031000
822024-10-310.036000
832016-09-300.031000
842019-07-310.043000
852021-07-300.029000
862022-07-290.031000
872024-05-310.033000
882019-12-310.035000
892024-06-280.037000
902016-07-290.038000
912019-03-290.041000
922023-09-290.034000
932017-11-300.140000
942020-06-300.027000
952021-05-280.024000
962023-02-280.031000
972018-05-310.039000
982018-12-310.039000
992019-01-310.041000
1002026-01-300.038000
1012017-06-300.027000
1022018-04-300.035000
1032022-02-280.028000
1042017-02-280.027000
1052022-12-300.034000
1062023-03-310.031000
1072026-02-270.036000
1082017-12-290.034000
1092023-08-310.032000
1102025-08-290.037000
1112022-06-300.030000
1122023-05-310.031000
1132025-07-310.037000
1142017-10-310.031000
1152018-07-310.043000
1162020-10-300.027000
1172022-04-290.027000
1182023-04-280.032000
1192016-12-300.025000
1202017-03-310.027000
1212020-01-310.036000
1222025-03-310.037000