f/overrides/event-backup/bdhkx-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

2.6 KiB

1DateDividends
22019-12-310.045000
32023-09-290.047000
42018-01-310.047000
52020-11-300.041000
62021-02-260.038000
72023-05-310.042000
82024-12-310.056000
92021-08-310.037000
102022-01-310.036000
112023-11-300.044000
122025-10-310.054000
132025-12-310.061000
142017-12-220.024000
152020-03-310.046000
162022-07-290.042000
172020-08-310.039000
182019-05-310.050000
192020-04-300.037000
202021-04-300.041000
212022-05-310.040000
222024-06-280.054000
232026-04-300.062000
242016-04-290.049000
252023-08-310.049000
262023-12-200.007000
272025-11-280.060000
282017-06-300.051000
292018-05-310.056000
302021-07-300.042000
312021-09-300.054000
322021-10-290.037000
332024-12-180.029000
342025-06-300.056000
352026-05-290.067000
362019-01-310.045000
372021-12-310.044000
382023-02-280.038000
392025-04-300.056000
402025-12-230.024000
412026-07-310.061000
422016-09-300.048000
432019-04-300.050000
442023-12-290.053000
452016-07-290.052000
462016-12-220.017000
472017-10-310.045000
482019-11-290.041000
492024-04-300.052000
502024-09-300.059000
512016-06-300.057000
522020-01-310.041000
532020-10-300.040000
542022-06-300.044000
552017-02-280.045000
562017-07-310.046000
572024-01-310.046000
582024-05-310.050000
592017-11-300.054000
602018-11-300.052000
612020-07-310.041000
622020-09-300.046000
632021-05-280.042000
642022-03-310.043000
652022-11-300.040000
662025-01-310.050000
672025-02-280.045000
682025-03-310.059000
692016-10-310.047000
702018-10-310.054000
712018-12-310.057000
722019-08-300.048000
732016-12-300.045000
742018-02-280.056000
752018-09-280.050000
762024-02-290.049000
772017-12-290.056000
782021-01-290.040000
792022-09-300.044000
802023-03-310.046000
812025-07-310.053000
822021-03-310.041000
832023-07-310.044000
842024-03-280.056000
852026-03-310.069000
862017-04-280.050000
872019-07-310.044000
882020-02-280.041000
892025-05-300.060000
902026-02-270.056000
912016-08-310.054000
922017-03-310.045000
932017-05-310.045000
942018-07-310.053000
952021-11-300.036000
962023-04-280.043000
972016-05-310.052000
982019-06-280.051000
992021-06-300.046000
1002023-01-310.040000
1012026-01-300.054000
1022016-03-310.006000
1032020-06-300.049000
1042020-12-310.045000
1052024-11-290.050000
1062026-06-300.061000
1072018-06-290.056000
1082020-05-290.044000
1092022-04-290.041000
1102024-10-310.055000
1112017-08-310.047000
1122022-10-310.040000
1132024-08-300.053000
1142025-08-290.052000
1152022-02-280.037000
1162022-08-310.043000
1172017-01-310.051000
1182017-09-290.059000
1192018-08-310.056000
1202019-02-280.048000
1212019-09-300.048000
1222022-12-300.046000
1232023-10-310.046000
1242018-03-290.057000
1252018-04-300.054000
1262019-03-290.047000
1272016-11-300.045000
1282019-10-310.047000
1292023-06-300.048000
1302024-07-310.051000
1312021-12-220.202000
1322025-09-300.054000