f/overrides/event-backup/fidi-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

675 B

1DateDividends
22019-09-200.256000
32019-12-200.118000
42024-12-200.217000
52025-03-210.235000
62022-03-180.244000
72025-12-190.254000
82026-03-200.265000
92018-12-210.150000
102019-06-210.278000
112020-09-180.214000
122021-12-170.169000
132022-12-160.108000
142025-09-190.198000
152018-03-160.212000
162021-09-170.212000
172023-03-170.343000
182026-06-180.421000
192020-06-190.059000
202021-06-180.259000
212023-09-150.196000
222024-03-150.233000
232018-09-210.209000
242023-12-150.195000
252024-06-210.450000
262024-09-200.215000
272025-06-200.436000
282023-06-160.254000
292018-06-150.284000
302019-03-150.269000
312020-03-200.254000
322020-12-180.088000
332021-03-190.183000
342022-09-160.232000