f/overrides/event-backup/jlfix-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

315 B

1DateDividends
22011-12-290.192000
32014-12-290.685000
42020-12-290.704000
52012-12-270.585000
62018-12-271.206000
72019-12-271.120000
82023-12-270.290000
92024-12-300.295000
102015-12-290.723000
112016-12-280.769000
122017-12-271.102000
132013-12-270.485000
142021-12-291.138000
152022-12-281.477000
162025-12-300.913000