f/overrides/event-backup/fijnx-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

335 B

1DateDividends
22023-12-280.283000
32020-12-300.525000
42021-05-140.683000
52022-12-290.316000
62023-05-120.012000
72024-05-100.031000
82024-12-300.429000
92019-05-100.612000
102022-05-130.806000
112025-12-300.618000
122020-05-080.523000
132019-12-300.452000
142021-12-300.850000
152025-05-090.556000
162026-05-150.600000
172018-12-280.854000