f/overrides/event-backup/fairx-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

416 B

1DateDividends
22005-08-090.012000
32010-12-162.003000
42016-12-161.583000
52025-12-120.222000
62024-12-130.211000
72004-12-210.587000
82006-12-140.415000
92007-12-190.698000
102013-12-273.397000
112015-12-1112.912000
122017-12-150.260000
132018-12-140.337000
142005-12-090.695000
152008-12-170.541000
162009-12-160.267000
172010-12-310.075000
182011-12-160.908000
192014-12-293.078000
202019-12-130.165000
212023-12-150.147000