f/overrides/event-backup/famex-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

2.3 KiB

1DateDividends
21999-09-290.064000
32011-12-290.063000
42020-09-290.015000
52008-09-290.110000
62009-03-300.042000
71997-12-300.056000
81998-09-290.068000
91999-06-290.066000
102024-12-271.795000
112003-12-300.212000
121997-09-260.065000
132014-09-290.065000
142018-06-280.080000
152023-06-290.052000
162023-09-280.044000
172003-03-280.034000
182005-03-300.027000
192004-03-300.025000
202007-06-280.102000
212009-06-290.030000
222016-09-290.057000
232019-03-280.044000
242021-12-280.699000
252026-06-260.015000
261996-09-270.061000
272011-09-290.067000
282022-12-290.589000
292025-06-270.010000
302001-06-280.054000
312007-12-271.592000
321999-12-150.073000
332008-03-270.045000
342015-06-290.066000
351998-12-290.054000
361999-03-300.070000
372014-06-270.065000
382019-06-270.058000
392023-12-280.236000
402025-09-290.016000
412007-03-290.019000
422012-03-290.065000
432018-12-270.220000
442003-09-290.025000
452005-06-290.035000
462013-09-270.059000
472020-12-290.844000
482002-09-270.029000
492006-12-281.206000
502016-06-290.068000
512023-03-290.025000
522000-09-280.059000
532006-03-290.033000
542016-12-292.169000
552020-03-300.035000
562020-06-290.028000
572022-03-290.011000
582022-09-290.011000
592000-03-300.085000
602009-12-290.060000
612013-12-271.095000
622016-03-300.075000
632024-09-270.017000
641996-06-270.056000
652004-09-290.033000
662007-09-270.038000
672024-03-270.016000
682024-06-270.023000
692001-03-290.068000
702010-09-290.180000
711996-12-270.077000
722000-12-150.205000
732003-06-270.033000
742006-06-290.047000
752008-12-300.049000
762010-06-290.047000
772015-03-300.060000
782017-09-280.041000
792001-12-270.026000
802005-12-290.030000
812012-12-281.237000
822014-12-300.997000
832002-12-270.548000
842014-03-280.058000
852015-09-290.069000
862021-09-290.015000
871997-03-270.071000
881998-03-300.074000
892011-03-310.046000
902015-12-291.057000
912010-12-290.060000
922012-09-280.060000
932013-03-280.050000
942013-06-270.064000
952005-09-290.042000
962017-06-290.047000
972018-03-280.055000
982018-09-280.046000
992002-03-270.032000
1002017-03-300.060000
1012019-09-270.042000
1022025-03-270.008000
1031998-06-290.082000
1042001-09-270.045000
1052012-06-290.060000
1062019-12-270.994000
1071997-06-270.077000
1082000-06-290.063000
1092004-06-290.070000
1102004-12-290.216000
1112026-03-270.007000
1122008-06-270.042000
1132017-12-280.064000
1142006-09-280.040000
1152009-09-290.036000
1162010-03-300.073000
1172011-06-290.103000
1182025-12-302.005000