f/overrides/event-backup/lezkx-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

335 B

1DateDividends
22021-03-310.009000
32021-09-300.029000
42021-12-310.200000
52023-03-310.027000
62022-03-310.013000
72022-12-230.061000
82025-12-290.278000
92022-09-300.033000
102023-06-300.095000
112023-09-290.035000
122023-12-220.106000
132024-12-240.344000
142020-09-300.018000
152020-12-310.086000
162021-06-300.087000
172022-06-300.094000