f/overrides/event-backup/fikvx-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
22022-12-290.359000
32024-11-010.030000
42020-09-040.012000
52021-09-030.007000
62022-11-040.024000
72026-05-010.029000
82026-06-050.036000
92022-09-020.020000
102024-03-010.027000
112025-12-300.114000
122026-04-010.029000
132022-08-050.020000
142023-10-060.048000
152026-02-060.021000
162023-05-050.028000
172025-04-040.033000
182026-03-060.027000
192019-07-050.027000
202021-07-020.024000
212021-11-050.006000
222025-11-070.039000
232018-12-280.324000
242024-07-050.050000
252025-07-110.047000
262025-10-030.046000
272026-08-070.039000
282023-03-030.025000
292024-08-020.035000
302025-05-020.033000
312021-08-060.009000
322021-10-010.056000
332022-04-010.012000
342023-07-070.052000
352025-09-050.035000
362019-04-050.019000
372019-12-300.183000
382020-07-100.016000
392024-09-060.035000
402024-12-300.116000
412025-06-060.036000
422018-11-020.021000
432021-02-050.006000
442023-12-280.110000
452019-11-080.026000
462020-12-300.154000
472022-10-070.084000
482026-07-100.041000
492018-10-050.023000
502019-03-080.022000
512019-05-030.027000
522021-03-050.008000
532021-04-050.015000
542021-06-040.007000
552023-02-030.010000
562019-06-070.026000
572020-04-030.019000
582020-11-060.013000
592025-03-070.028000
602019-09-060.024000
612021-05-070.010000
622025-02-070.024000
632023-11-030.032000
642020-03-060.015000
652022-02-040.005000
662023-04-050.035000
672022-06-030.009000
682024-05-030.035000
692020-02-070.011000
702020-05-010.023000
712022-05-060.016000
722024-10-040.046000
732020-08-070.018000
742023-09-080.030000
752024-06-070.030000
762023-08-040.029000
772024-02-020.017000
782019-02-080.015000
792019-10-040.022000
802022-03-040.007000
812021-12-300.098000
822022-07-010.028000
832023-06-020.026000
842024-04-050.037000
852025-08-010.033000
862019-08-020.024000
872020-06-050.017000
882020-10-020.019000