f/overrides/event-backup/fiqsx-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
22018-12-310.040000
32019-12-260.013000
42020-07-310.027000
52023-06-300.063000
62025-05-300.058000
72026-07-310.050000
82019-10-310.040000
92020-10-300.027000
102021-06-300.024000
112022-10-310.050000
122023-04-280.062000
132026-03-310.050000
142023-12-210.005000
152024-01-310.066000
162019-09-300.039000
172019-12-310.037000
182021-12-220.013000
192022-12-220.017000
202023-05-310.066000
212023-10-310.068000
222024-03-280.067000
232024-09-300.064000
242021-02-260.023000
252021-03-310.025000
262021-09-300.024000
272023-01-310.060000
282024-12-130.012000
292026-01-300.052000
302025-10-310.056000
312025-12-310.054000
322020-03-310.037000
332020-04-300.032000
342020-08-310.026000
352023-09-290.065000
362024-11-290.059000
372025-08-290.056000
382026-02-270.045000
392020-06-300.029000
402021-08-310.026000
412024-07-310.066000
422025-09-300.055000
432021-04-300.026000
442021-07-300.026000
452023-03-310.063000
462024-06-280.063000
472025-06-300.056000
482020-11-300.027000
492022-08-310.043000
502025-03-310.058000
512025-04-300.055000
522023-11-300.065000
532019-07-310.042000
542019-11-290.036000
552020-05-290.031000
562020-12-310.028000
572022-04-290.026000
582023-02-280.055000
592024-05-310.064000
602025-12-120.013000
612019-03-290.042000
622021-01-290.028000
632021-05-280.025000
642022-05-310.030000
652022-06-300.031000
662022-07-290.039000
672026-06-300.048000
682025-01-310.056000
692026-04-300.049000
702019-06-280.041000
712020-01-310.037000
722020-02-280.033000
732024-02-290.063000
742024-04-300.065000
752024-12-310.061000
762018-10-310.036000
772018-11-300.038000
782019-02-280.037000
792020-09-300.028000
802023-12-290.068000
812019-04-300.041000
822019-05-310.042000
832021-11-300.024000
842022-01-310.025000
852022-11-300.052000
862026-05-290.050000
872019-01-310.041000
882019-08-300.041000
892021-10-290.025000
902023-07-310.066000
912023-08-310.064000
922025-02-280.052000
932018-12-270.012000
942021-12-310.026000
952022-03-310.026000
962024-08-300.067000
972024-10-310.063000
982022-02-280.022000
992022-09-300.043000
1002022-12-300.056000
1012025-07-310.056000