f/overrides/event-backup/gapux-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
22017-12-280.410000
32019-12-100.819000
42022-12-070.552000
52016-12-290.241000
62024-12-061.253000
72025-12-300.594000
82020-12-100.316000
92020-12-300.258000
102021-12-101.437000
112023-12-280.381000
122022-12-230.575000
132023-12-070.683000
142024-12-300.718000
152025-12-052.757000
162015-12-300.207000
172018-12-280.502000
182019-12-300.340000
192021-12-301.478000