f/overrides/event-backup/jtmrx-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
22018-05-310.031000
32020-04-300.026000
42023-09-290.026000
52018-06-290.031000
62021-06-300.026000
72022-10-310.024000
82024-08-300.027000
92026-01-300.029000
102020-11-300.024000
112017-11-300.031000
122023-02-280.025000
132023-07-310.025000
142026-07-310.029000
152018-12-310.030000
162025-05-300.028000
172018-07-310.031000
182024-10-310.027000
192025-10-310.029000
202018-01-310.031000
212023-10-310.026000
222019-10-310.026000
232020-09-300.025000
242020-12-310.023000
252021-02-260.025000
262025-02-280.028000
272026-03-310.029000
282026-05-290.029000
292019-09-300.027000
302021-01-290.023000
312024-03-280.026000
322025-08-290.029000
332020-10-300.025000
342019-07-310.028000
352022-09-300.023000
362018-04-300.031000
372025-09-300.029000
382024-01-310.026000
392024-04-300.026000
402024-07-310.027000
412023-11-300.026000
422023-12-290.026000
432018-11-300.030000
442019-04-300.029000
452019-12-310.024000
462022-02-280.025000
472025-01-310.027000
482020-07-310.025000
492022-04-290.023000
502021-10-290.024000
512025-07-310.028000
522018-09-280.031000
532026-06-300.029000
542017-09-290.032000
552021-05-280.026000
562021-08-310.025000
572022-12-300.024000
582023-04-280.025000
592019-03-290.029000
602020-03-310.025000
612024-12-310.027000
622025-04-300.028000
632020-05-290.026000
642020-06-300.026000
652023-03-310.025000
662024-05-310.026000
672024-09-300.027000
682025-11-280.029000
692023-01-310.024000
702023-05-310.025000
712025-12-310.029000
722017-10-310.032000
732018-02-280.032000
742019-01-310.029000
752021-04-300.026000
762022-03-310.025000
772026-04-300.029000
782018-10-310.030000
792024-06-280.027000
802021-03-310.027000
812021-09-300.025000
822024-02-290.027000
832017-12-290.031000
842018-08-310.031000
852019-05-310.029000
862024-11-290.027000
872026-02-270.030000
882018-03-290.031000
892021-07-300.025000
902023-06-300.025000
912023-08-310.025000
922019-02-280.030000
932019-11-290.025000
942020-02-280.026000
952022-06-300.026000
962022-01-310.022000
972022-05-310.022000
982019-08-300.027000
992020-08-310.025000
1002021-11-300.024000
1012021-12-310.023000
1022025-06-300.029000
1032017-08-310.001000
1042020-01-310.025000
1052019-06-280.029000
1062025-03-310.027000
1072022-07-290.023000
1082022-08-310.023000
1092022-11-300.024000