f/overrides/event-backup/fcakx-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
22009-12-040.027000
32009-12-300.002000
42010-04-300.030000
52013-12-063.686000
62022-12-092.997000
72024-12-137.734000
82025-12-123.708000
92012-12-270.020000
102018-12-073.978000
112010-12-030.063000
122016-12-091.817000
132021-12-037.438000
142023-12-081.351000
152008-12-050.218000
162011-12-020.078000
172011-12-280.010000
182012-12-070.780000
192014-12-054.205000
202015-12-044.317000
212017-12-084.045000
222019-12-064.599000
232020-12-043.520000