f/overrides/event-backup/dryqx-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

535 B

1DateDividends
22013-12-190.086000
32015-06-230.255000
42017-12-191.110000
52020-12-101.174000
62021-12-101.820000
72020-06-230.474000
82021-06-231.237000
92024-12-060.760000
102026-06-231.345000
112014-06-180.425000
122014-12-180.627000
132016-06-220.036000
142018-12-171.494000
152019-06-200.472000
162022-06-221.801000
172022-12-060.158000
182023-12-060.167000
192025-06-241.053000
202015-12-170.725000
212016-12-190.779000
222017-06-230.383000
232018-06-220.995000
242019-03-190.075000
252019-12-171.043000
262023-06-220.440000
272025-12-082.071000