f/overrides/event-backup/ffolx-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

455 B

1DateDividends
22024-05-100.012000
32026-05-080.065000
42017-12-280.346000
52018-12-280.376000
62019-12-302.784000
72020-12-300.364000
82022-05-130.019000
92023-12-280.453000
102025-12-300.602000
112016-05-130.008000
122019-05-100.043000
132020-05-080.062000
142021-05-140.068000
152022-12-290.391000
162017-05-120.023000
172018-05-110.032000
182021-12-300.431000
192024-12-300.518000
202025-05-090.033000
212015-12-290.306000
222016-12-280.322000
232023-05-120.006000