f/overrides/event-backup/dbaw-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
22015-12-160.607000
32018-06-200.267000
42020-06-260.237000
52022-06-240.372000
62023-06-231.007000
72026-06-180.019000
82025-06-200.788000
92014-12-191.829000
102015-06-240.720000
112016-12-210.155000
122019-06-280.444000
132021-06-250.450000
142022-12-160.244000
152024-06-210.242000
162014-06-270.028000
172016-06-210.322000
182017-06-210.323000
192019-12-180.397000
202020-12-180.396000
212021-12-170.241000
222024-12-200.335000
232017-12-190.348000
242018-12-190.444000
252022-12-073.004000
262023-12-150.036000
272025-12-190.789000