f/overrides/event-backup/evttx-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

355 B

1DateDividends
22021-10-210.055000
32022-07-210.054000
42022-12-290.144000
52024-12-270.083000
62026-07-230.105000
72020-11-230.141000
82025-12-300.330000
92023-12-280.203000
102021-12-291.353000
112023-07-200.121000
122024-07-250.134000
132020-12-300.009000
142017-12-290.800000
152018-12-280.665000
162019-11-210.133000
172025-07-240.237000
182016-12-120.145000