f/overrides/event-backup/nubd-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

2.1 KiB

1DateDividends
22022-04-010.048000
32024-07-010.063000
42019-12-270.064000
52025-07-010.067000
62019-02-010.064000
72022-08-010.046000
82025-04-010.077000
92026-06-010.076000
102025-02-030.072000
112020-04-010.051000
122021-02-010.036000
132022-12-150.117000
142023-02-010.049000
152024-08-010.065000
162018-09-040.056000
172020-07-010.052000
182023-05-010.051000
192023-06-010.055000
202018-04-020.062000
212025-05-010.070000
222026-02-020.069000
232017-12-010.055000
242019-04-010.058000
252020-08-030.050000
262025-10-010.076000
272025-12-010.073000
282018-05-010.057000
292018-10-010.056000
302019-03-010.054000
312026-07-010.074000
322023-12-010.063000
332024-03-010.059000
342024-12-020.065000
352025-08-010.075000
362022-09-010.048000
372023-09-010.063000
382023-10-020.056000
392025-12-180.081000
402018-02-010.063000
412018-09-130.058000
422019-08-010.052000
432021-10-010.045000
442021-12-010.047000
452023-12-140.056000
462019-09-030.055000
472020-02-030.041000
482020-12-170.054000
492021-11-010.042000
502019-06-030.056000
512020-06-010.051000
522022-07-010.047000
532017-11-010.037000
542018-06-010.050000
552019-10-010.056000
562020-09-010.049000
572021-07-010.047000
582018-12-260.057000
592025-09-020.072000
602025-06-020.075000
612022-02-010.039000
622026-05-010.080000
632022-11-010.047000
642024-05-010.064000
652018-11-010.059000
662019-11-010.056000
672020-10-010.051000
682021-08-020.041000
692018-08-010.058000
702020-11-020.044000
712021-06-010.043000
722021-09-010.044000
732023-07-030.057000
742018-12-030.057000
752019-07-010.051000
762022-05-020.042000
772022-10-030.050000
782022-12-010.052000
792026-04-010.073000
802021-12-160.052000
812022-06-010.045000
822023-11-010.058000
832026-03-020.068000
842019-12-020.061000
852024-09-030.068000
862021-03-010.041000
872021-04-010.044000
882025-11-030.070000
892017-12-260.053000
902020-12-010.049000
912024-02-010.059000
922024-06-030.071000
932021-05-030.044000
942026-08-030.078000
952024-10-010.068000
962018-03-010.056000
972020-05-010.049000
982024-04-010.061000
992024-12-180.049000
1002022-03-010.038000
1012023-08-010.055000
1022019-05-010.053000
1032020-03-020.051000
1042024-11-010.073000
1052025-03-030.065000
1062018-07-020.058000
1072023-03-010.048000
1082023-04-030.053000