f/overrides/event-backup/lsdnx-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

1.8 KiB

1DateDividends
22022-02-240.012000
32022-06-270.019000
42023-02-240.025000
52024-04-250.033000
62020-08-260.016000
72021-08-270.012000
82021-12-220.061000
92022-01-270.010000
102019-05-290.027000
112019-07-290.026000
122025-08-270.035000
132024-10-240.041000
142026-03-300.037000
152022-04-250.014000
162022-07-270.020000
172024-03-260.034000
182024-07-250.036000
192021-05-250.013000
202021-06-250.012000
212022-12-220.029000
222023-10-270.032000
232019-03-270.026000
242020-05-260.019000
252020-09-250.015000
262021-01-270.010000
272025-07-280.037000
282025-12-180.044000
292023-05-250.028000
302024-01-290.033000
312024-08-230.033000
322025-09-260.034000
332019-08-290.023000
342021-09-270.011000
352022-05-250.016000
362023-01-270.024000
372021-03-250.012000
382023-08-290.033000
392023-11-280.034000
402026-02-270.032000
412021-04-230.011000
422024-11-250.035000
432025-06-270.035000
442024-02-260.031000
452024-05-240.034000
462024-09-230.035000
472026-06-290.035000
482019-11-260.018000
492021-07-270.013000
502022-08-290.022000
512023-12-200.036000
522025-10-280.036000
532019-09-270.021000
542020-06-250.018000
552021-11-260.010000
562023-09-270.029000
572022-10-270.024000
582022-11-280.026000
592019-12-190.078000
602020-04-240.018000
612020-10-260.016000
622022-09-270.021000
632025-11-280.034000
642026-01-290.034000
652021-10-270.011000
662022-03-250.014000
672024-12-180.025000
682025-02-280.033000
692019-04-260.024000
702020-01-280.018000
712020-07-270.019000
722026-05-280.031000
732019-10-290.023000
742020-03-260.021000
752021-02-240.011000
762024-06-240.036000
772025-01-300.033000
782026-04-280.032000
792019-02-260.023000
802020-11-240.012000
812023-03-270.030000
822023-06-270.031000
832020-02-260.019000
842025-03-280.035000
852026-07-290.034000
862025-04-280.036000
872025-05-280.036000
882019-06-260.021000
892020-12-210.305000
902023-04-250.027000
912023-07-270.030000