f/overrides/event-backup/bafsx-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
22012-12-122.687000
32014-12-234.215000
42018-12-210.177000
52022-12-133.323000
62015-12-215.093000
72017-12-190.508000
82018-01-310.016000
92025-12-157.584000
102018-12-171.594000
112019-12-160.885000
122020-12-150.450000
132008-12-100.363000
142011-12-080.269000
152013-12-131.684000
162017-12-270.145000
172024-12-132.603000
182007-12-121.024000
192016-12-191.126000
202018-02-280.017000
212021-12-147.230000