f/overrides/event-backup/dglax-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
22008-12-310.021000
32009-12-310.057000
42010-12-310.112000
52013-12-310.104000
62019-12-311.105000
72022-03-290.175000
82025-03-270.493000
92025-12-124.703000
102008-03-280.044000
112011-12-300.224000
122012-12-310.081000
132016-03-310.616000
142016-12-300.154000
152017-12-291.581000
162018-12-311.280000
172015-12-311.061000
182023-12-133.603000
192024-03-260.011000
202024-12-121.788000
212007-12-280.126000
222014-12-310.212000
232020-12-141.423000
242021-12-142.360000
252022-12-132.185000
262023-03-280.062000
272026-03-270.428000