f/overrides/event-backup/eaoa-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

535 B

1DateDividends
22022-10-040.099000
32023-12-220.248000
42024-04-020.106000
52024-12-200.260000
62026-07-020.284000
72020-10-020.067000
82023-04-040.122000
92023-10-030.116000
102025-07-020.275000
112025-10-020.127000
122020-07-020.121000
132021-04-050.056000
142022-04-040.068000
152026-04-020.137000
162020-12-240.154000
172021-07-020.160000
182021-10-040.071000
192021-12-230.210000
202021-12-300.011000
212022-07-050.206000
222022-12-230.163000
232023-07-050.224000
242024-07-020.243000
252024-10-020.136000
262025-04-020.119000
272025-12-230.346000