f/overrides/event-backup/gmrix-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

2.0 KiB

1DateDividends
22013-03-150.054000
32016-03-110.019000
42017-12-182.441000
52018-03-090.023000
62020-03-090.007000
72023-06-120.037000
82002-06-210.022000
92009-09-180.014000
102020-12-290.002000
112002-03-220.017000
122016-09-120.023000
132009-06-190.014000
142010-03-190.013000
152011-06-170.040000
162015-03-130.031000
172018-09-100.036000
182005-03-240.029000
192007-03-230.067000
202007-12-210.031000
212016-06-100.036000
222024-03-110.010000
232000-12-180.043000
242004-06-250.021000
252014-06-130.028000
262014-12-161.164000
272022-12-210.126000
282000-09-260.024000
292009-12-180.044000
302008-12-190.036000
312009-03-200.021000
322010-06-180.030000
332010-09-170.028000
342012-03-160.011000
352015-09-100.038000
362001-06-270.023000
372006-12-271.097000
382019-06-070.025000
392025-12-180.319000
402017-09-110.030000
412019-03-080.010000
422012-06-150.026000
432013-12-181.028000
442018-12-183.845000
452003-06-200.020000
462005-06-240.040000
472006-06-230.053000
482008-03-200.032000
492012-12-190.600000
502019-12-180.699000
512020-12-210.053000
522023-09-110.034000
532002-09-200.019000
542004-03-260.021000
552024-12-190.548000
562011-12-190.432000
572020-06-080.016000
582003-12-260.199000
592011-09-160.027000
602005-12-280.529000
612007-04-110.234000
622010-04-300.028000
632017-03-100.018000
642021-12-210.853000
652001-09-260.026000
662003-03-210.016000
672006-09-220.057000
682014-03-140.011000
692017-06-090.023000
702018-12-190.088000
712019-09-090.032000
722024-09-090.076000
732004-12-280.042000
742006-03-240.042000
752015-06-120.036000
762020-09-080.023000
772022-06-060.034000
782022-09-120.030000
792023-12-200.072000
802001-03-280.017000
812004-09-240.024000
822014-02-130.008000
832016-12-160.996000
842023-03-130.014000
852026-03-180.020000
862007-06-220.055000
872010-12-270.048000
882018-06-080.021000
892021-09-070.016000
902025-06-090.045000
912002-12-270.027000
922008-09-190.038000
932014-09-160.023000
942021-06-070.010000
952003-09-110.016000
962007-09-210.050000
972005-09-230.042000
982010-12-300.004000
992012-09-070.030000
1002013-06-210.002000
1012015-12-171.538000
1022026-06-170.040000
1032000-06-270.049000
1042001-12-200.026000