f/overrides/event-backup/grmix-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
22008-03-200.052000
32022-09-120.069000
42003-03-210.027000
52008-12-190.060000
62013-03-150.047000
72013-06-210.032000
82020-09-080.063000
92022-03-070.033000
102011-06-170.047000
112015-12-171.488000
122020-03-090.046000
132021-03-080.022000
142002-09-200.028000
152005-12-280.126000
162010-09-170.038000
172025-12-181.434000
182000-12-180.200000
192005-06-240.040000
202007-03-230.058000
212012-06-150.096000
222014-09-160.052000
232016-03-110.051000
242021-09-070.060000
252000-06-270.027000
262011-03-180.035000
272011-09-160.049000
282001-03-280.025000
292002-03-220.025000
302002-06-210.026000
312019-03-080.041000
322024-06-100.074000
332007-09-210.058000
342018-12-182.148000
352003-06-200.027000
362008-06-200.045000
372010-03-190.016000
382016-06-100.048000
392018-09-100.074000
402023-03-130.047000
412012-09-070.049000
422015-06-120.069000
432017-12-180.968000
442012-12-190.203000
452015-03-130.056000
462016-09-120.035000
472020-12-210.099000
482024-09-090.080000
492007-12-210.062000
502014-03-140.031000
512017-09-110.038000
522020-12-290.007000
532002-12-270.033000
542004-09-240.034000
552006-03-240.044000
562009-09-180.036000
572014-02-130.018000
582017-06-090.064000
592018-03-090.042000
602003-09-110.027000
612009-03-200.043000
622019-06-070.082000
632019-09-090.069000
642006-09-220.048000
652025-06-090.082000
662013-09-200.049000
672018-12-190.145000
682020-06-080.065000
692008-09-190.055000
702010-06-180.029000
712022-06-060.068000
722023-09-110.069000
732015-09-100.061000
742022-12-210.187000
752025-09-080.076000
762007-06-220.051000
772018-06-080.070000
782014-06-130.032000
792001-06-270.025000
802001-12-200.031000
812003-12-260.040000
822021-06-070.065000
832001-09-260.029000
842006-06-230.045000
852006-12-270.107000
862026-06-170.088000
872005-09-230.046000
882017-03-100.042000
892021-12-211.039000
902023-12-200.141000
912025-03-100.042000
922026-03-180.053000
932010-12-270.096000
942014-12-160.725000
952004-12-280.071000
962009-06-190.038000
972004-06-250.032000
982005-03-240.037000
992011-12-190.139000
1002013-12-181.212000
1012000-03-280.029000
1022004-03-260.029000
1032009-12-180.065000
1042019-12-180.853000
1052024-12-190.590000
1062016-12-160.954000
1072023-06-120.074000
1082024-03-110.044000