f/overrides/event-backup/ddcpx-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

1.7 KiB

1DateDividends
22022-07-290.041000
32025-08-290.067000
42026-01-300.063000
52026-02-270.052000
62026-05-290.063000
72021-09-300.027000
82023-05-310.056000
92025-05-300.077000
102025-09-300.067000
112022-11-300.059000
122023-01-310.050000
132024-05-310.064000
142024-10-310.064000
152025-03-310.065000
162023-04-280.048000
172024-02-290.061000
182024-11-290.062000
192024-12-310.068000
202019-09-300.036000
212019-11-290.034000
222020-02-280.030000
232022-04-290.029000
242023-06-300.057000
252024-06-280.068000
262024-08-300.066000
272025-10-310.066000
282020-01-310.033000
292021-07-300.027000
302022-06-300.039000
312023-02-280.053000
322026-03-310.069000
332019-12-040.393000
342020-11-300.023000
352021-12-300.024000
362022-01-310.023000
372023-03-310.055000
382026-06-300.070000
392020-10-300.025000
402023-10-310.058000
412023-11-300.058000
422019-08-300.039000
432020-06-300.027000
442021-02-260.021000
452022-02-280.022000
462022-10-310.049000
472025-02-280.060000
482025-12-310.070000
492020-12-310.027000
502022-03-310.030000
512022-09-300.049000
522023-07-310.054000
532020-08-310.024000
542021-12-074.790000
552023-08-310.057000
562023-09-290.057000
572025-01-310.063000
582025-07-310.067000
592019-12-310.035000
602020-03-310.036000
612021-01-290.023000
622021-10-290.028000
632022-08-310.046000
642022-12-300.054000
652026-07-310.059000
662021-06-300.026000
672024-09-300.063000
682025-04-300.062000
692025-11-280.064000
702020-04-300.028000
712020-05-290.029000
722020-07-310.025000
732022-05-310.023000
742024-03-280.056000
752025-06-300.068000
762024-04-300.058000
772019-10-310.035000
782020-09-300.024000
792021-08-310.025000
802021-11-300.027000
812022-12-071.482000
822023-12-290.057000
832024-01-310.059000
842024-07-310.069000
852026-04-300.065000