f/overrides/event-backup/evx-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
22017-12-180.155000
32019-12-230.094400
42022-12-190.111800
52023-12-180.290000
62025-12-220.071000
72009-12-230.075200
82016-12-190.106200
92012-12-240.157600
102024-12-230.159200
112007-12-240.108000
122010-12-230.100000
132018-12-200.063400
142020-12-210.078200
152021-12-200.074000
162014-12-220.210400
172015-12-210.136000
182011-12-230.124000
192013-12-230.150000
202006-12-210.010000
212008-12-260.073000