f/overrides/event-backup/avalx-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

515 B

1DateDividends
21998-12-210.080000
32002-12-180.510000
42003-12-190.410000
52006-12-195.441000
62013-12-230.713000
72022-12-160.051000
82024-12-132.908000
92023-12-150.789000
102000-12-280.940000
112009-12-220.002000
122010-06-220.004000
132014-12-022.776000
142015-12-020.004000
152016-12-210.243000
162018-12-070.955000
172025-12-121.369000
181999-12-200.150000
192001-12-280.039000
202005-12-150.190000
212008-12-190.501000
222004-12-210.870000
232007-12-211.002000
242012-12-210.011000
252019-12-200.447000
262020-12-041.394000