f/overrides/event-backup/ieifx-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
22013-06-200.056000
32017-12-130.633000
42019-06-200.049000
52015-12-110.383000
62016-09-150.051000
72022-12-140.552000
82025-03-270.059000
92026-03-260.059000
102022-09-220.054000
112013-09-190.056000
122017-06-150.050000
132019-09-190.049000
142020-06-180.048000
152018-12-140.706000
162020-09-170.049000
172022-06-230.043000
182023-06-220.056000
192013-12-130.666000
202021-09-230.044000
212021-12-141.470000
222019-03-210.049000
232020-12-110.216000
242014-03-200.056000
252015-06-180.053000
262018-06-210.050000
272022-03-240.043000
282023-03-230.056000
292014-09-180.057000
302015-09-170.052000
312014-06-190.057000
322021-06-240.045000
332024-06-270.059000
342024-09-260.059000
352014-12-121.114000
362017-09-140.050000
372020-03-190.048000
382023-09-280.056000
392016-12-130.364000
402018-03-220.050000
412023-12-130.565000
422024-03-280.056000
432015-03-190.053000
442019-12-130.539000
452021-03-250.041000
462025-06-260.059000
472012-12-070.084000
482013-03-210.056000
492025-12-110.617000
502026-06-250.059000
512024-12-120.728000
522017-03-160.050000
532016-03-170.051000
542025-09-250.059000
552016-06-160.051000
562018-09-130.050000