f/overrides/event-backup/nwqfx-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

375 B

1DateDividends
22019-02-073.140000
32021-12-154.558000
42021-12-300.113000
52024-12-300.552000
62017-12-151.730000
72022-12-290.702000
82023-12-280.197000
92024-12-163.168000
102017-12-280.098000
112019-04-093.000000
122019-12-300.184000
132023-12-150.063000
142025-12-152.139000
152018-12-178.692000
162019-03-073.140000
172020-12-300.165000
182022-12-150.705000
192025-12-300.310000