f/overrides/event-backup/mignx-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

435 B

1DateDividends
22022-07-290.056000
32025-12-184.557000
42012-12-180.200000
52019-06-280.092000
62021-06-300.696000
72021-12-143.903000
82023-12-211.746000
92014-12-181.013000
102017-12-192.005000
112020-12-152.904000
122026-07-310.540000
132018-12-182.826000
142024-07-310.015000
152024-12-193.748000
162019-12-172.448000
172020-06-300.003000
182022-12-131.552000
192025-07-310.328000
202013-12-170.412000
212015-12-171.588000
222016-12-201.454000