f/overrides/event-backup/liesx-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
22023-12-150.486000
32024-12-171.162000
42012-06-190.007000
52013-06-180.033000
62014-12-100.321000
72021-12-031.131000
82017-12-060.467000
92020-12-040.294000
102015-12-090.312000
112018-12-060.410000
122019-12-050.409000
132025-12-161.908000
142011-06-150.010000
152012-12-270.321000
162013-12-260.148000
172014-06-180.027000
182022-12-150.622000
192009-12-290.297000
202010-12-290.306000
212011-12-280.315000
222016-12-070.368000