f/overrides/event-backup/bfgbx-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

435 B

1DateDividends
22009-12-040.087000
32014-12-105.663000
42016-12-060.882000
52019-12-052.942000
62026-07-227.468000
72025-07-173.039000
82025-12-093.749000
92013-12-114.285000
102017-12-043.378000
112020-12-071.997000
122022-07-141.651000
132022-12-080.455000
142024-07-182.982000
152012-12-060.182000
162018-12-063.411000
172023-07-200.523000
182024-12-111.779000
192015-12-092.579000
202021-07-153.591000
212021-12-071.541000
222023-12-060.721000