f/overrides/event-backup/fsnqx-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

355 B

1DateDividends
22021-05-140.836000
32023-12-280.332000
42025-05-090.394000
52026-05-080.582000
62017-12-280.582000
72019-05-100.589000
82020-12-300.751000
92021-12-301.286000
102018-05-110.478000
112020-05-080.466000
122022-12-290.548000
132024-05-100.082000
142018-12-280.682000
152019-12-300.635000
162022-05-060.936000
172024-12-300.466000
182025-12-300.677000