f/overrides/event-backup/duhp-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
22024-12-170.101000
32025-06-240.116000
42022-06-220.061000
52023-03-210.078000
62023-12-190.138000
72024-03-190.077000
82026-06-230.095000
92022-09-200.079000
102022-12-200.113000
112025-03-250.081000
122025-12-160.085000
132026-03-240.095000
142022-03-220.012000
152023-06-210.092000
162023-09-190.124000
172024-09-170.100000
182024-06-180.105000
192025-09-230.106000