f/overrides/event-backup/mueax-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

655 B

1DateDividends
22012-12-110.176000
32014-12-110.979000
42018-12-182.675000
52003-12-100.055000
62013-12-100.309000
72020-12-152.075000
82023-12-141.176000
92004-12-090.057000
102005-12-080.106000
112015-12-100.711000
122017-12-120.901000
132022-12-132.318000
142025-12-112.709000
152001-12-100.024000
162003-02-280.027000
172002-12-100.026000
182003-01-310.027000
192009-12-100.367000
202016-12-130.232000
211999-12-102.368000
222000-12-110.069000
232007-12-110.197000
242008-05-280.298000
252021-12-145.298000
261998-12-101.506000
272006-12-120.082000
282011-12-080.094000
291997-12-230.182000
302010-12-090.130000
312024-12-123.694000
322008-12-160.102000
332019-12-171.385000