f/overrides/event-backup/jdeux-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

2.1 KiB

1DateDividends
22007-06-290.074000
32017-12-200.118000
42018-12-190.122000
52021-06-280.099000
62023-12-130.045000
72004-09-300.046000
82007-09-280.070000
92013-06-280.070000
102017-06-280.102000
112019-09-260.115000
122020-12-180.109000
132011-03-310.055000
142024-09-260.117000
152016-06-280.081000
162012-12-180.096000
172013-12-121.353000
182015-12-210.101000
192021-03-290.080000
202016-12-200.110000
212022-09-280.105000
222023-06-280.104000
232019-06-260.114000
242005-12-270.063000
252008-12-220.080000
262010-09-300.052000
272011-09-300.062000
282020-09-280.162000
292023-03-290.087000
302024-03-260.087000
312003-09-300.042000
322010-12-200.065000
332018-12-122.925000
342003-06-300.042000
352019-12-120.093000
362021-12-134.400000
372015-03-270.067000
382011-06-300.062000
392022-06-280.100000
402013-12-200.079000
412005-09-300.052000
422008-09-300.073000
432015-06-260.070000
442022-12-200.125000
452008-03-310.078000
462009-03-310.150000
472024-06-260.113000
482007-12-200.088000
492009-12-210.075000
502018-06-270.107000
512019-10-082.603000
522012-12-130.678000
532016-03-290.071000
542026-06-260.109000
552009-06-300.059000
562015-12-110.970000
572019-03-270.087000
582006-06-300.059000
592021-12-200.106000
602026-03-270.089000
612005-03-310.042000
622012-03-300.064000
632014-12-220.083000
642017-09-270.088000
652024-12-190.140000
662025-12-112.241000
672025-12-180.114000
682014-06-300.090000
692015-09-280.075000
702017-03-290.111000
712010-06-300.056000
722014-03-310.072000
732014-09-300.077000
742020-12-110.828000
752025-03-270.098000
762004-12-170.097000
772007-03-300.074000
782021-09-280.098000
792022-12-130.452000
802004-03-310.040000
812013-09-300.071000
822003-12-190.054000
832006-12-220.080000
842012-06-290.062000
852012-09-280.081000
862013-03-280.062000
872014-12-121.599000
882009-09-300.052000
892018-03-270.091000
902020-06-260.099000
912024-12-122.227000
922025-06-260.110000
932004-06-300.044000
942005-06-300.051000
952006-03-310.057000
962006-09-290.065000
972008-06-300.079000
982019-12-190.121000
992020-03-270.069000
1002023-09-270.110000
1012025-09-260.128000
1022010-03-310.055000
1032011-12-200.078000
1042016-09-280.121000
1052018-09-260.116000
1062022-03-290.065000
1072023-12-200.143000