f/overrides/event-backup/fsilx-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
22020-08-310.013000
32022-01-310.008000
42019-02-280.019000
52022-12-300.014000
62023-02-280.015000
72024-12-310.035000
82019-11-290.018000
92024-02-290.027000
102026-06-300.033000
112017-08-310.015000
122021-05-280.009000
132022-08-310.012000
142026-03-310.034000
152017-12-290.015000
162018-05-310.017000
172026-02-270.033000
182018-01-310.015000
192019-04-300.019000
202020-06-300.014000
212026-04-300.033000
222025-03-310.035000
232025-06-300.035000
242017-10-310.014000
252019-06-280.019000
262020-01-310.017000
272022-06-300.009000
282023-06-300.019000
292023-07-310.020000
302018-11-300.018000
312019-03-290.020000
322020-07-310.013000
332021-11-300.008000
342022-10-310.013000
352021-07-300.009000
362020-12-310.011000
372021-09-300.008000
382021-12-310.008000
392020-12-070.007000
402024-05-310.032000
412025-02-280.034000
422025-04-300.035000
432024-04-300.030000
442025-05-300.035000
452025-07-310.035000
462017-09-290.014000
472017-11-300.014000
482022-03-310.009000
492023-12-290.026000
502025-12-310.034000
512019-08-300.019000
522020-02-280.017000
532020-09-300.012000
542022-11-300.014000
552025-08-290.035000
562018-02-280.015000
572020-03-310.016000
582021-08-310.009000
592024-10-310.034000
602018-12-310.019000
612019-09-300.018000
622025-10-310.035000
632026-07-310.033000
642019-12-310.018000
652021-04-300.010000
662025-01-310.035000
672026-05-290.033000
682024-06-280.033000
692018-09-280.017000
702020-04-300.015000
712022-04-290.009000
722023-09-290.022000
732021-12-070.008000
742025-11-280.034000
752023-01-310.015000
762024-01-310.027000
772024-03-280.029000
782024-11-290.034000
792018-10-310.018000
802019-01-310.019000
812022-09-300.012000
822023-03-310.016000
832023-10-310.023000
842019-07-310.019000
852026-01-300.034000
862021-02-260.010000
872021-03-310.010000
882021-10-290.008000
892024-08-300.034000
902020-11-300.011000
912022-12-070.017000
922024-09-300.034000
932021-01-290.011000
942023-11-300.024000
952022-07-290.010000
962018-07-310.018000
972018-08-310.018000
982019-10-310.019000
992025-09-300.035000
1002018-03-290.016000
1012020-05-290.014000
1022021-06-300.009000
1032022-02-280.009000
1042018-04-300.016000
1052022-05-310.009000
1062023-08-310.021000
1072024-07-310.034000
1082023-05-310.018000
1092018-06-290.017000
1102019-05-310.020000
1112020-10-300.012000
1122023-04-280.016000