f/overrides/event-backup/gccux-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
22023-06-290.162000
32024-06-270.188000
42025-06-270.126000
52019-12-301.031000
62021-12-301.489000
72022-06-290.023000
82017-12-280.634000
92018-06-280.056000
102018-12-280.077000
112019-06-270.082000
122020-06-290.028000
132015-12-300.035000
142016-12-290.054000
152017-06-300.041000
162022-12-230.986000
172019-03-280.048000
182023-12-220.184000
192024-12-230.153000
202016-06-290.048000
212025-12-301.209000
222026-06-290.139000