f/overrides/event-backup/dodwx-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
22010-12-210.078000
32011-12-200.203000
42013-12-190.480000
52015-12-210.413000
62020-12-180.174000
72022-12-190.975000
82017-12-190.606000
92023-12-180.241000
102024-12-181.967000
112012-12-190.312000
122014-12-190.449000
132016-12-200.341000
142018-12-191.079000
152019-12-190.942000
162021-12-201.554000
172025-12-181.331000