f/overrides/event-backup/newfx-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

555 B

1DateDividends
22024-12-192.821000
32001-12-190.545000
42018-12-211.297000
52005-12-270.728000
62006-12-263.147000
72023-12-141.842000
82003-12-180.585000
92014-12-263.123000
102021-12-165.930000
112022-12-150.589000
122000-12-140.370000
132004-12-170.546000
142009-12-220.568000
152011-12-270.757000
162017-12-211.268000
172019-12-202.575000
182008-12-230.506000
192020-12-170.085000
202025-12-185.322000
212002-12-190.252000
222007-12-124.968000
232010-12-270.776000
242012-12-260.713000
252015-12-230.300000
262016-12-220.475000
271999-12-150.200000
282013-12-261.180000