f/overrides/event-backup/netl-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

1.4 KiB

1DateDividends
22019-06-110.142000
32022-04-270.095000
42022-05-260.095000
52025-01-300.100000
62025-11-250.105000
72022-06-280.095000
82023-02-240.095000
92023-07-270.095000
102023-10-270.095000
112019-09-170.247000
122020-09-280.279000
132021-09-280.090000
142022-08-290.095000
152022-10-270.095000
162023-01-270.095000
172024-06-240.100000
182024-10-240.100000
192022-11-280.095000
202023-08-290.095000
212024-03-250.100000
222026-06-260.105000
232020-03-310.191000
242021-12-290.462000
252025-06-260.100000
262025-08-280.100000
272019-12-300.303000
282021-05-260.090000
292021-07-280.090000
302023-05-260.095000
312026-01-280.105000
322026-03-270.105000
332021-03-290.097000
342022-03-290.095000
352023-03-290.095000
362024-12-300.100000
372025-07-300.100000
382026-04-280.105000
392020-06-260.278000
402023-04-260.095000
412024-04-240.100000
422025-10-300.105000
432026-05-270.105000
442023-09-270.095000
452023-12-270.095000
462025-04-290.100000
472020-03-170.010000
482021-08-270.090000
492021-10-270.090000
502022-07-270.095000
512024-05-230.100000
522024-09-240.100000
532024-02-260.100000
542026-02-250.105000
552020-12-290.277000
562021-06-280.090000
572022-01-270.095000
582022-12-280.095000
592023-06-280.095000
602024-01-240.095000
612021-04-280.090000
622025-09-290.100000
632026-07-290.105000
642024-07-240.100000
652024-08-260.100000
662025-03-270.100000
672022-02-240.095000
682022-09-280.095000
692023-11-280.095000
702024-11-250.100000
712025-05-290.100000
722025-12-300.105000
732021-11-260.090000
742025-02-270.100000