f/overrides/event-backup/lubax-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
22019-05-310.022000
32019-12-310.017000
42021-09-300.004000
52021-12-310.003000
62022-05-310.008000
72023-10-310.039000
82024-02-290.040000
92018-06-290.018000
102019-04-300.021000
112020-09-300.004000
122025-06-300.038000
132026-06-300.033000
142026-04-300.033000
152019-09-300.019000
162022-08-310.016000
172025-05-300.039000
182026-02-270.033000
192018-01-310.013000
202019-06-280.021000
212024-10-310.041000
222026-07-310.033000
232018-10-310.019000
242020-05-290.010000
252022-07-290.013000
262018-09-280.019000
272019-11-290.017000
282021-08-310.003000
292024-07-310.043000
302025-01-310.039000
312025-02-280.038000
322020-12-310.003000
332022-12-300.029000
342023-02-280.029000
352023-05-310.035000
362024-06-280.043000
372026-01-300.035000
382021-06-300.003000
392022-01-310.003000
402023-09-290.039000
412018-04-300.017000
422020-11-300.003000
432021-11-300.004000
442023-12-290.041000
452017-10-310.011000
462021-03-310.003000
472024-04-300.042000
482018-08-310.019000
492020-03-310.015000
502024-01-310.042000
512024-05-310.043000
522022-06-300.010000
532022-11-300.025000
542024-09-300.042000
552019-03-290.022000
562020-04-300.013000
572021-02-260.003000
582023-03-310.032000
592024-03-280.042000
602017-09-290.011000
612022-03-310.005000
622025-11-280.036000
632025-12-310.035000
642021-07-300.003000
652022-10-310.022000
662023-01-310.029000
672017-11-300.011000
682018-07-310.019000
692019-10-310.018000
702025-09-300.037000
712026-03-310.034000
722026-05-290.033000
732018-05-310.018000
742019-01-310.022000
752019-02-280.021000
762019-08-300.020000
772020-01-310.016000
782020-10-300.003000
792022-09-300.018000
802021-12-170.003000
812023-11-300.039000
822019-07-310.021000
832020-08-310.005000
842021-05-280.003000
852021-10-290.003000
862025-04-300.039000
872018-11-300.020000
882020-02-280.015000
892020-06-300.008000
902021-01-290.003000
912024-11-290.040000
922025-03-310.039000
932023-04-280.033000
942024-08-300.044000
952024-12-310.040000
962023-07-310.038000
972025-08-290.038000
982018-02-280.013000
992022-02-280.005000
1002023-08-310.039000
1012025-07-310.038000
1022018-03-290.016000
1032018-12-310.021000
1042020-07-310.007000
1052022-04-290.007000
1062023-06-300.035000
1072025-10-310.037000
1082017-12-290.012000
1092021-04-300.003000