f/overrides/event-backup/jcpb-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

1.8 KiB

1DateDividends
22023-08-010.167000
32023-11-010.164000
42019-09-300.117000
52020-05-010.087000
62021-03-010.088000
72021-04-010.076000
82021-07-010.099000
92021-12-300.094000
102024-12-310.196000
112019-11-290.123000
122021-06-010.093000
132021-10-010.092000
142026-03-020.186000
152025-12-310.190000
162021-12-010.089000
172021-12-150.109000
182022-07-010.098000
192022-12-290.155000
202023-06-010.167000
212024-08-010.199000
222019-05-310.129000
232020-04-010.090000
242020-09-010.073000
252021-02-010.073000
262025-02-030.192000
272019-06-280.135000
282020-08-030.076000
292023-02-010.169000
302024-03-010.190000
312025-05-010.206000
322026-08-030.191000
332022-09-010.127000
342023-05-010.174000
352024-02-010.198000
362021-08-020.095000
372023-07-030.168000
382019-07-310.120000
392020-06-010.074000
402024-05-010.208000
412026-02-020.197000
422026-07-010.181000
432026-05-010.190000
442026-06-010.187000
452019-08-300.122000
462022-05-020.106000
472022-06-010.107000
482022-10-030.125000
492023-03-010.142000
502025-04-010.187000
512021-05-030.091000
522021-11-010.092000
532022-04-010.091000
542022-12-010.147000
552023-12-280.182000
562025-08-010.195000
572019-10-310.129000
582022-02-010.083000
592023-12-010.182000
602024-06-030.197000
612022-11-010.133000
622024-12-020.197000
632026-04-010.186000
642025-06-020.194000
652025-07-010.191000
662019-12-300.446000
672020-02-280.096000
682020-12-300.100000
692021-09-010.100000
702022-03-010.091000
712025-03-030.187000
722025-10-010.198000
732025-09-020.199000
742020-12-010.070000
752020-12-150.650000
762022-08-010.117000
772023-04-030.160000
782024-07-010.202000
792024-10-010.196000
802020-01-310.098000
812024-11-010.203000
822023-10-020.185000
832024-04-010.187000
842019-03-290.120000
852019-04-300.133000
862020-07-010.085000
872020-10-010.078000
882020-11-020.077000
892023-09-010.174000
902024-09-030.205000
912025-11-030.192000
922025-12-010.190000