f/overrides/event-backup/jamrx-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

656 B

1DateDividends
21995-12-292.062000
32012-12-180.215000
42013-12-170.301000
51997-12-291.942000
62006-12-150.019000
72023-12-071.896000
81996-12-272.356000
92011-12-200.163000
102014-12-176.279000
112019-12-175.116000
122020-12-171.871000
132024-12-064.334000
142022-12-200.132000
151994-12-300.270000
161999-12-103.265000
172004-12-170.029000
182007-12-140.027000
192010-12-220.132000
202018-12-184.444000
212005-12-160.062000
222008-12-120.048000
232009-12-220.059000
242015-12-174.004000
252017-04-261.532000
262000-12-154.441000
272016-12-192.242000
282021-12-208.854000
292025-12-0510.719000
302001-12-140.044000
311998-12-282.012000
322009-06-240.109000
332017-12-192.346000