f/overrides/event-backup/menrx-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

1.1 KiB

1DateDividends
22014-12-290.276000
32019-09-300.140000
42023-12-210.342000
52026-03-310.140000
62018-06-290.140000
72022-06-300.140000
82024-06-280.140000
92026-06-300.140000
102013-06-280.200000
112012-12-310.316000
122015-09-300.100000
132016-03-310.160000
142018-09-280.140000
152024-12-260.318000
162016-09-300.120000
172017-12-270.304000
182018-03-290.140000
192019-12-230.174000
202021-09-300.140000
212013-03-280.200000
222019-06-280.140000
232020-06-300.140000
242021-03-310.140000
252021-06-300.140000
262022-03-310.140000
272025-09-300.140000
282016-12-270.213000
292018-12-210.346000
302022-09-300.140000
312015-03-310.200000
322022-12-220.253000
332025-03-310.140000
342016-06-300.120000
352017-06-300.130000
362021-12-230.230000
372023-03-310.140000
382020-09-300.100000
392023-09-290.140000
402025-06-300.140000
412014-09-300.200000
422019-03-290.140000
432020-03-310.140000
442014-03-310.200000
452015-12-280.173000
462025-12-260.367000
472020-12-230.178000
482015-06-300.200000
492017-03-310.130000
502023-06-300.140000
512024-03-280.140000
522024-09-300.140000
532013-09-300.200000
542014-06-300.200000
552017-09-290.130000
562012-09-280.200000
572013-12-260.332000