f/overrides/event-backup/ldcax-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
22023-09-290.037000
32023-10-310.038000
42025-12-310.034000
52026-01-300.034000
62026-05-290.032000
72017-11-300.021000
82025-11-280.034000
92017-12-290.023000
102018-06-290.027000
112020-05-290.023000
122020-06-300.019000
132023-05-310.036000
142024-04-300.037000
152025-04-300.035000
162026-03-310.031000
172024-07-310.037000
182021-07-300.013000
192024-12-310.035000
202023-06-300.036000
212024-02-290.037000
222018-03-290.023000
232018-12-310.027000
242024-10-310.036000
252025-03-310.034000
262020-09-300.015000
272025-08-290.035000
282026-06-300.032000
292018-10-310.027000
302019-08-300.023000
312020-01-310.020000
322021-06-300.013000
332022-02-280.016000
342023-04-280.035000
352024-06-280.037000
362023-08-310.038000
372019-02-280.024000
382020-10-300.015000
392021-02-260.014000
402021-03-310.014000
412023-01-310.032000
422024-03-280.039000
432022-03-310.017000
442022-01-310.014000
452019-09-300.022000
462019-11-290.023000
472020-12-310.016000
482023-02-280.032000
492025-02-280.034000
502020-04-300.024000
512022-08-310.025000
522026-02-270.033000
532018-02-280.022000
542020-08-310.017000
552023-07-310.037000
562017-09-290.020000
572018-11-300.027000
582019-10-310.025000
592021-12-310.015000
602019-05-310.027000
612023-11-300.039000
622019-01-310.024000
632020-11-300.015000
642026-04-300.033000
652020-07-310.018000
662021-05-280.012000
672021-09-300.015000
682021-10-290.015000
692024-05-310.038000
702025-01-310.035000
712025-10-310.035000
722021-08-310.013000
732021-11-300.015000
742025-09-300.035000
752021-04-300.014000
762022-09-300.026000
772024-08-300.037000
782022-11-300.028000
792019-04-300.026000
802019-12-310.028000
812017-10-310.021000
822018-09-280.028000
832018-05-310.025000
842019-06-280.027000
852021-01-290.015000
862022-10-310.027000
872024-01-310.038000
882024-11-290.035000
892025-06-300.035000
902017-08-310.021000
912018-07-310.026000
922023-12-290.039000
932024-09-300.036000
942018-01-310.023000
952020-03-310.023000
962022-06-300.020000
972019-03-290.025000
982020-02-280.021000
992022-05-310.020000
1002022-07-290.021000
1012022-12-300.031000
1022026-07-310.033000
1032018-04-300.025000
1042023-03-310.034000
1052018-08-310.028000
1062025-05-300.035000
1072019-07-310.026000
1082022-04-290.019000
1092025-07-310.035000