f/overrides/event-backup/ivvyx-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
22015-12-100.311000
32016-12-080.274000
42018-10-311.286000
52006-12-140.799000
62007-12-131.621000
72010-12-090.174000
82011-12-080.503000
92013-12-120.377000
102019-12-120.433000
112025-12-122.713000
122014-12-112.037000
132017-12-140.215000
142018-12-130.191000
152022-12-150.148000
162008-12-110.549000
172020-12-100.191000
182009-12-100.143000
192012-12-130.242000
202021-12-160.517000
212023-12-150.502000
222024-12-130.149000