f/overrides/event-backup/embd-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

1.5 KiB

1DateDividends
22024-12-300.247000
32020-08-050.092000
42022-02-030.088000
52022-03-030.080000
62022-12-290.054000
72024-05-030.096000
82025-12-010.109000
92026-08-030.114000
102020-10-050.092000
112022-08-030.085000
122022-11-030.085000
132022-12-050.085000
142025-08-010.112000
152021-03-030.092000
162021-06-030.088000
172021-12-030.088000
182022-05-040.080000
192025-06-020.113000
202023-06-050.090000
212020-12-300.378000
222021-04-050.092000
232021-09-030.088000
242022-04-050.077000
252022-10-050.085000
262023-04-050.086000
272024-07-030.096000
282021-12-300.311000
292023-09-060.092000
302026-06-010.113000
312023-12-280.202000
322024-04-030.096000
332025-07-010.112000
342025-12-300.114000
352020-07-060.091000
362020-12-030.092000
372026-03-020.115000
382024-02-050.094000
392024-10-030.100000
402024-11-050.100000
412020-11-040.092000
422021-10-050.088000
432022-06-030.080000
442023-05-030.086000
452023-12-050.094000
462025-03-030.101000
472025-11-030.112000
482021-05-050.092000
492023-10-040.092000
502023-11-030.092000
512024-06-050.096000
522023-08-030.092000
532026-04-010.116000
542020-09-030.092000
552021-11-030.088000
562023-07-060.090000
572024-08-050.096000
582025-02-030.100000
592025-04-010.113000
602025-05-010.109000
612025-10-010.112000
622021-02-030.092000
632021-07-060.088000
642021-08-040.088000
652023-02-030.085000
662023-03-030.085000
672026-02-020.115000
682026-05-010.112000
692026-07-010.113000
702025-09-020.110000
712022-07-060.085000
722022-09-060.085000
732024-03-050.094000
742024-09-050.100000
752024-12-040.100000