f/overrides/event-backup/ebnd-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
22018-09-040.113000
32021-02-010.078000
42021-04-010.075000
52021-06-010.080000
62025-12-180.114000
72018-02-010.099000
82019-12-020.091000
92022-06-010.092000
102023-02-010.094000
112011-11-010.033000
122020-03-020.086000
132020-12-010.078000
142022-04-010.056000
152011-05-020.087000
162024-07-010.095000
172013-12-020.125000
182019-08-010.114000
192020-06-010.085000
202021-05-030.077000
212026-07-010.110000
222018-08-010.103000
232023-12-180.084000
242023-11-010.097000
252017-12-190.149000
262020-09-010.081000
272023-03-010.082000
282017-09-010.134000
292018-03-010.099000
302021-03-010.071000
312021-07-010.076000
322022-12-010.090000
332025-11-030.100000
342013-10-010.127000
352021-12-010.078000
362025-06-020.099000
372019-09-030.108000
382023-09-010.083000
392022-07-010.099000
402022-02-010.080000
412012-10-010.094000
422017-11-010.105000
432019-05-010.113000
442020-10-010.074000
452021-11-010.082000
462022-03-010.072000
472024-04-010.099000
482011-07-010.150000
492025-03-030.085000
502019-06-030.116000
512011-04-010.075000
522018-12-030.098000
532019-10-010.088000
542020-05-010.080000
552018-10-010.107000
562021-12-170.077000
572022-09-010.091000
582022-10-030.089000
592023-08-010.096000
602017-10-020.104000
612020-07-010.103000
622013-11-010.100000
632013-12-270.081000
642018-07-020.099000
652019-12-200.099000
662023-07-030.091000
672023-10-020.095000
682024-11-010.102000
692013-06-030.119000
702025-02-030.095000
712025-07-010.098000
722022-11-010.090000
732026-05-010.102000
742024-10-010.099000
752025-04-010.100000
762013-08-010.061000
772018-05-010.100000
782018-06-010.107000
792019-07-010.135000
802024-12-020.095000
812012-12-270.847000
822018-12-190.105000
832020-12-180.085000
842022-12-190.089000
852023-06-010.092000
862026-06-010.104000
872013-05-010.074000
882012-12-030.186000
892018-11-010.115000
902024-02-010.101000
912025-05-010.095000
922025-09-020.104000
932012-08-010.088000
942024-08-010.099000
952025-08-010.100000
962020-11-020.085000
972011-08-010.114000
982011-12-280.136000
992024-12-190.075000
1002025-10-010.096000
1012011-06-010.119000
1022019-03-010.099000
1032020-04-010.101000
1042022-05-020.038000
1052023-04-030.127000
1062025-12-010.098000
1072011-12-010.105000
1082023-05-010.080000
1092024-09-030.097000
1102026-04-010.103000
1112022-08-010.089000
1122019-11-010.102000
1132021-10-010.078000
1142012-09-040.132000
1152018-04-020.101000
1162020-08-030.081000
1172023-12-010.098000
1182024-05-010.096000
1192024-06-030.101000
1202014-02-030.067000
1212020-02-030.091000
1222021-08-020.082000
1232026-08-030.107000
1242017-12-010.103000
1252021-09-010.083000
1262026-02-020.103000
1272019-02-010.120000
1282024-03-010.091000
1292026-03-020.091000
1302019-04-010.122000