f/overrides/event-backup/fijwx-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

2.0 KiB

1DateDividends
22019-12-260.015000
32020-06-300.026000
42020-07-310.027000
52025-02-280.039000
62019-07-310.035000
72024-01-310.045000
82024-05-310.044000
92024-06-280.041000
102025-01-310.043000
112025-03-310.044000
122025-10-310.047000
132025-12-310.044000
142018-12-270.014000
152020-04-300.027000
162020-11-300.026000
172022-12-220.007000
182023-10-310.042000
192024-10-310.044000
202026-07-310.045000
212019-09-300.030000
222019-08-300.031000
232019-10-310.030000
242021-05-280.027000
252022-06-300.030000
262025-04-300.044000
272026-03-310.044000
282019-06-280.035000
292020-02-280.027000
302023-09-290.041000
312024-02-290.041000
322025-05-300.046000
332026-01-300.043000
342019-04-300.035000
352020-05-290.028000
362020-12-230.010000
372021-08-310.028000
382022-03-310.029000
392024-09-300.043000
402026-04-300.043000
412019-03-290.037000
422021-03-310.028000
432023-01-310.039000
442023-12-290.044000
452024-03-280.044000
462026-06-300.043000
472019-05-310.036000
482019-01-310.036000
492021-02-260.025000
502021-09-300.026000
512022-01-310.028000
522022-02-280.025000
532023-02-280.036000
542023-04-280.040000
552018-11-300.034000
562024-07-310.044000
572021-01-290.028000
582022-12-300.038000
592023-03-310.041000
602023-05-310.041000
612025-06-300.043000
622025-09-300.046000
632025-12-170.132000
642020-01-310.029000
652020-09-300.027000
662021-10-290.026000
672023-11-300.043000
682024-08-300.044000
692024-11-290.042000
702024-12-310.044000
712025-08-290.049000
722018-12-310.036000
732020-12-310.028000
742020-08-310.027000
752019-11-290.028000
762021-12-310.027000
772023-08-310.041000
782024-04-300.043000
792018-10-310.032000
802021-06-300.028000
812021-12-220.006000
822022-08-310.031000
832022-10-310.032000
842023-07-310.041000
852024-12-180.072000
862026-05-290.045000
872019-12-310.028000
882022-05-310.031000
892022-07-290.032000
902025-07-310.047000
912021-07-300.028000
922021-04-300.027000
932021-11-300.026000
942022-04-290.028000
952022-09-300.031000
962023-06-300.040000
972023-12-210.045000
982020-10-300.028000
992020-03-310.029000
1002026-02-270.039000
1012019-02-280.031000