f/overrides/event-backup/bfrkx-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

2.5 KiB

1DateDividends
22022-04-290.032000
32019-02-280.041000
42021-09-300.029000
52021-11-300.026000
62023-05-310.074000
72025-08-290.057000
82020-04-300.036000
92022-03-310.031000
102016-09-300.038000
112016-11-300.036000
122018-04-300.038000
132018-11-300.041000
142019-06-280.042000
152022-02-280.026000
162022-07-290.042000
172019-09-300.039000
182021-07-300.030000
192026-01-300.050000
202018-06-290.038000
212020-12-230.008000
222017-07-310.035000
232018-12-310.044000
242019-01-310.047000
252024-09-300.066000
262019-07-310.044000
272023-09-290.070000
282024-02-290.070000
292017-05-310.035000
302019-03-290.044000
312021-03-310.030000
322018-09-280.039000
332020-09-300.029000
342023-01-310.061000
352026-02-270.044000
362018-07-310.041000
372020-11-300.031000
382021-01-290.030000
392021-04-300.029000
402025-04-300.056000
412025-09-300.055000
422017-06-300.033000
432017-10-310.036000
442018-05-310.041000
452019-12-310.037000
462020-03-310.040000
472022-06-300.035000
482025-06-300.055000
492016-07-290.037000
502020-02-280.035000
512024-04-300.069000
522024-08-300.068000
532017-04-280.035000
542018-02-280.034000
552019-08-300.041000
562022-09-300.047000
572025-03-310.057000
582018-01-310.039000
592021-06-300.029000
602025-12-220.017000
612016-05-310.039000
622018-08-310.040000
632018-10-310.040000
642021-02-260.027000
652022-10-310.053000
662024-03-280.072000
672025-02-280.052000
682026-03-310.048000
692017-09-290.034000
702017-12-290.037000
712018-03-290.039000
722020-06-300.030000
732023-03-310.069000
742025-07-310.057000
752019-05-310.044000
762026-06-300.047000
772017-08-310.035000
782021-10-290.028000
792023-12-290.074000
802017-01-310.037000
812017-11-300.035000
822019-04-300.043000
832021-12-310.028000
842022-05-310.034000
852023-06-300.073000
862023-11-300.072000
872016-06-300.037000
882016-12-300.036000
892021-08-310.029000
902022-01-310.027000
912023-04-280.066000
922024-07-310.068000
932023-02-280.061000
942024-05-310.068000
952026-04-300.048000
962017-03-310.036000
972020-01-310.038000
982023-10-310.073000
992024-01-310.072000
1002024-06-280.067000
1012026-07-310.048000
1022020-07-310.031000
1032024-11-290.061000
1042025-10-310.053000
1052025-11-280.049000
1062017-02-280.031000
1072020-10-300.033000
1082024-12-310.061000
1092026-05-290.050000
1102016-03-310.003000
1112016-10-310.038000
1122018-12-210.003000
1132022-12-300.060000
1142025-05-300.058000
1152016-08-310.038000
1162019-10-310.040000
1172022-08-310.045000
1182016-04-290.035000
1192020-12-310.032000
1202023-08-310.072000
1212024-10-310.064000
1222020-05-290.033000
1232020-08-310.029000
1242019-11-290.036000
1252021-05-280.030000
1262022-11-300.056000
1272023-07-310.070000
1282025-01-310.057000
1292025-12-310.053000