f/overrides/event-backup/alarx-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

435 B

1DateDividends
22000-12-150.058000
32009-12-220.032000
42018-12-183.548000
52020-12-166.940000
62021-12-157.997000
72022-12-150.978000
82023-12-142.680000
91998-07-063.600000
101999-06-280.325000
112000-06-270.217000
122005-12-200.004000
132014-12-183.302000
142017-12-152.189000
152024-12-125.741000
162025-12-173.780000
172011-12-200.760000
182019-12-183.567000
192012-12-181.012000
202013-12-183.414000
212015-12-162.041000
222016-12-140.195000