f/overrides/event-backup/mkwix-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

2.6 KiB

1DateDividends
22021-04-300.009000
32021-08-310.011000
42020-04-300.008000
52018-01-310.016000
62025-04-300.018000
72015-11-300.004000
82016-09-300.009000
92017-07-310.019000
102021-02-260.008000
112021-05-280.011000
122023-08-310.007000
132024-11-290.014000
142016-01-290.010000
152025-05-300.021000
162020-02-280.010000
172018-12-310.013000
182018-05-310.014000
192018-11-300.011000
202016-04-290.015000
212016-12-300.014000
222017-05-310.017000
232025-10-310.021000
242016-03-310.012000
252017-03-310.018000
262019-08-300.014000
272020-01-310.011000
282020-09-300.008000
292024-02-290.007000
302016-10-310.014000
312019-11-290.012000
322022-09-300.016000
332025-09-300.020000
342026-07-310.020000
352018-04-300.013000
362017-04-280.015000
372017-10-310.017000
382019-04-300.014000
392016-08-310.016000
402022-11-300.014000
412023-10-310.008000
422025-08-290.020000
432021-07-300.011000
442026-06-300.019000
452026-03-310.021000
462017-02-280.013000
472018-06-290.013000
482018-07-310.013000
492019-07-310.013000
502022-03-310.013000
512017-01-310.009000
522020-03-310.010000
532019-09-300.013000
542023-01-310.018000
552021-03-310.008000
562020-12-310.010000
572022-01-310.011000
582023-02-280.016000
592023-04-280.014000
602023-09-290.007000
612023-12-290.009000
622025-06-300.020000
632017-09-290.016000
642021-12-310.011000
652023-05-310.012000
662020-08-310.009000
672022-02-280.011000
682022-06-300.013000
692024-07-310.013000
702017-11-300.016000
712020-07-310.009000
722025-01-310.017000
732025-03-310.019000
742016-11-300.015000
752020-10-300.007000
762020-11-300.009000
772021-06-300.010000
782026-05-290.023000
792018-10-310.011000
802020-05-290.007000
812022-05-310.013000
822023-11-300.009000
832024-01-310.008000
842024-09-300.016000
852025-02-280.017000
862026-01-300.020000
872017-12-290.015000
882018-02-280.012000
892018-03-290.016000
902022-04-290.012000
912024-10-310.017000
922016-07-290.017000
932020-12-220.197000
942021-10-290.008000
952023-03-310.024000
962024-03-280.011000
972025-12-310.020000
982018-08-310.011000
992022-08-310.015000
1002023-07-310.012000
1012024-05-310.013000
1022019-05-310.012000
1032019-01-310.012000
1042022-07-290.014000
1052016-06-300.015000
1062019-12-310.013000
1072020-06-300.007000
1082026-02-270.020000
1092026-04-300.021000
1102017-06-300.020000
1112019-03-290.013000
1122021-09-300.010000
1132022-12-300.020000
1142024-12-310.015000
1152015-12-310.010000
1162021-11-300.008000
1172025-07-310.021000
1182025-11-280.021000
1192019-06-280.014000
1202016-05-310.015000
1212019-02-280.011000
1222021-01-290.009000
1232022-10-310.016000
1242024-04-300.015000
1252016-02-290.010000
1262019-10-310.014000
1272023-06-300.014000
1282024-06-280.010000
1292018-09-280.010000
1302024-08-300.015000
1312017-08-310.017000