f/overrides/event-backup/moo-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

415 B

1DateDividends
22008-12-260.282000
32016-12-191.098000
42021-12-290.020000
52013-12-230.930000
62024-12-232.201000
72023-12-182.236000
82009-12-230.422000
92011-12-230.304000
102014-12-221.688000
112018-12-200.964000
122019-12-230.909000
132022-12-191.847000
142021-12-201.097000
152025-12-221.798000
162010-12-230.328000
172012-12-240.972000
182013-12-270.112000
192015-12-211.343000
202017-12-180.884000
212020-12-210.856000