f/overrides/event-backup/laiex-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

515 B

1DateDividends
22002-11-200.054000
32008-11-210.051000
42011-12-160.084000
52012-12-180.255000
62014-12-220.663000
72015-12-180.705000
82019-12-180.206000
91997-11-130.025000
102006-11-210.016000
112010-12-170.052000
122017-12-150.906000
132018-12-181.752000
141998-11-180.108000
152007-11-202.242000
161999-11-170.886000
172003-11-250.147000
182009-11-240.086000
192013-12-180.213000
202016-12-160.112000
212021-12-170.479000
222022-12-200.271000
232023-12-190.274000
242000-11-210.083000
252025-12-180.346000
262024-12-170.339000