f/overrides/event-backup/bcskx-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

315 B

1DateDividends
22020-07-160.027000
32021-12-070.060000
42023-12-070.195000
52024-12-130.175000
62019-12-050.152000
72021-07-150.191000
82022-12-080.158000
92023-07-200.584000
102018-12-060.145000
112020-12-070.038000
122022-07-140.699000
132024-07-180.129000
142025-07-170.155000
152025-12-110.169000
162026-07-221.401000