f/overrides/event-backup/ivov-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

335 B

1DateDividends
22012-12-240.539500
32014-12-220.708500
42018-12-130.981000
52020-12-221.591500
62023-12-201.329000
72024-12-231.665000
82025-12-221.841000
92010-12-270.128000
102019-12-161.137500
112022-12-201.509500
122011-12-230.397500
132015-12-170.735500
142016-12-200.750500
152017-12-210.944000
162013-12-200.372000
172021-12-211.502500