f/overrides/event-backup/gmxix-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
22021-09-070.048000
32023-09-110.048000
42025-03-100.015000
52002-12-270.022000
62011-03-180.083000
72013-09-200.036000
82025-09-080.024000
92023-03-130.029000
102016-09-120.028000
112021-06-070.044000
122001-06-270.014000
132001-09-260.027000
142002-09-200.018000
152018-12-182.791000
162007-12-210.036000
172012-03-160.012000
182017-09-110.030000
192019-03-080.013000
202016-12-161.638000
212018-09-100.058000
222019-06-070.041000
232006-03-240.057000
242009-03-200.034000
252015-09-100.050000
262008-03-200.038000
272017-12-182.325000
282005-12-280.723000
292020-06-080.043000
302009-06-190.019000
312010-12-270.215000
322026-03-180.029000
332003-06-200.020000
342004-12-280.300000
352002-06-210.019000
362003-03-210.018000
372007-06-220.049000
382007-09-210.050000
392008-09-190.042000
402011-12-191.129000
412000-03-280.027000
422001-12-200.035000
432008-06-200.025000
442018-06-080.054000
452023-06-120.045000
462025-06-090.058000
472016-06-100.045000
482022-09-120.056000
492000-12-180.064000
502009-09-180.018000
512022-12-211.329000
522013-12-180.899000
532004-09-240.026000
542014-09-160.042000
552017-03-100.020000
562003-09-110.020000
572014-02-130.009000
582006-06-230.058000
592016-03-110.031000
602020-09-080.042000
612015-03-130.035000
622024-09-090.067000
632012-09-070.029000
642014-12-161.439000
652005-06-240.054000
662019-12-180.747000
672013-06-210.029000
682020-03-090.023000
692020-12-210.485000
702022-03-070.012000
712000-06-270.035000
722000-09-260.037000
732004-06-250.029000
742005-09-230.043000
752010-06-180.031000
762022-06-060.057000
772026-06-170.046000
782021-03-080.023000
792002-03-220.018000
802012-06-150.025000
812018-03-090.021000
822025-12-181.909000
832007-03-230.110000
842009-12-180.061000
852006-12-270.891000
862014-03-140.022000
872017-06-090.039000
882023-12-201.008000
892024-06-100.056000
902008-12-190.051000
912012-12-190.738000
922015-12-172.160000
932018-12-190.163000
942007-04-110.590000
952019-09-090.053000
962021-12-212.270000
972013-03-150.031000
982014-06-130.027000
992003-12-260.152000
1002004-03-260.025000
1012005-03-240.026000
1022010-09-170.034000
1032024-03-110.020000
1042024-12-191.792000
1052006-09-220.058000
1062015-06-120.053000