f/overrides/event-backup/devlx-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

775 B

1DateDividends
22009-12-220.017000
32012-12-210.346000
41992-12-310.040000
52003-12-222.354000
62008-12-220.060000
72022-12-162.806000
82023-12-184.907000
92024-12-168.162000
101999-12-220.385000
112007-12-213.418000
122010-12-220.140000
131994-12-280.160000
141995-12-270.240000
152014-12-222.794000
162000-12-221.118000
172005-12-223.053000
181996-12-204.035000
192004-12-224.625000
202020-12-180.409000
212016-12-220.309000
222017-12-220.881000
232019-12-192.621000
242021-12-173.386000
251989-12-070.140000
261997-12-222.240000
272001-12-212.744000
282006-12-213.273000
292011-12-221.806000
302013-12-201.156000
312015-12-223.219000
322025-12-158.408000
331988-12-090.070000
341993-12-300.035000
352002-12-200.843000
362018-12-214.383000
371987-12-230.045000
381990-12-200.155000
391998-12-220.163000