f/overrides/event-backup/dltzx-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

2.2 KiB

1DateDividends
22018-01-220.015000
32018-08-220.021000
42022-01-310.014000
52022-07-290.018000
62025-04-300.027000
72026-06-300.028000
82024-09-300.026000
92025-01-310.029000
102020-01-220.020000
112021-08-310.013000
122022-03-310.015000
132022-08-310.018000
142024-03-280.027000
152025-07-310.029000
162019-05-220.021000
172024-05-310.029000
182018-05-220.021000
192018-09-210.022000
202026-07-310.032000
212020-06-220.012000
222021-02-260.015000
232023-10-310.025000
242026-05-290.029000
252017-12-290.017000
262017-11-220.018000
272017-12-220.018000
282018-03-220.017000
292023-08-310.024000
302024-02-290.025000
312019-09-200.021000
322018-11-210.023000
332021-05-280.014000
342023-01-310.022000
352018-04-200.020000
362020-10-220.014000
372024-06-280.028000
382023-02-280.021000
392024-10-310.029000
402017-09-220.019000
412019-10-220.020000
422020-04-220.017000
432020-05-220.017000
442021-06-300.013000
452022-10-310.020000
462026-04-300.028000
472018-07-200.020000
482019-06-210.022000
492022-06-300.016000
502023-05-310.024000
512020-07-220.013000
522026-01-300.027000
532022-04-290.015000
542023-03-310.023000
552018-06-220.023000
562020-03-200.018000
572022-02-280.013000
582023-11-300.024000
592019-02-220.026000
602020-09-220.014000
612024-01-310.027000
622024-04-300.028000
632025-11-280.028000
642020-02-210.023000
652020-12-310.015000
662023-06-300.024000
672025-06-300.028000
682018-02-220.017000
692019-08-220.020000
702019-11-220.021000
712024-07-310.029000
722025-09-300.030000
732021-10-290.014000
742025-12-310.027000
752022-05-310.016000
762023-12-290.027000
772024-08-300.028000
782024-11-290.028000
792018-10-220.021000
802021-04-300.017000
812021-07-300.013000
822024-12-310.029000
832025-10-310.030000
842020-11-300.018000
852022-09-300.018000
862022-11-300.021000
872023-07-310.024000
882025-03-310.029000
892025-05-300.029000
902019-03-220.021000
912023-09-290.024000
922019-04-220.021000
932022-12-300.022000
942026-02-270.025000
952017-10-200.016000
962021-01-290.016000
972021-03-310.016000
982021-11-300.013000
992017-08-220.018000
1002019-01-220.023000
1012018-02-280.016000
1022019-07-220.019000
1032025-08-290.029000
1042020-08-210.013000
1052025-02-280.027000
1062018-12-210.023000
1072026-03-310.029000
1082019-12-190.016000
1092021-09-300.013000
1102021-12-310.014000
1112023-04-280.023000