f/overrides/event-backup/abnzx-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

2.1 KiB

1DateDividends
22025-05-070.048000
32018-08-080.035000
42022-03-090.033000
52023-11-080.059000
62024-02-070.009000
72024-07-030.048000
82025-02-050.013000
92016-09-070.027000
102017-10-040.019000
112018-09-120.027000
122018-07-110.053000
132019-07-100.053000
142021-07-070.063000
152018-06-060.045000
162019-10-090.044000
172019-12-060.049000
182022-08-100.109000
192025-07-090.048000
202018-04-110.020000
212021-12-080.122000
222022-12-070.091000
232023-09-060.039000
242023-10-040.031000
252024-11-060.023000
262026-05-060.052000
272026-07-080.094000
282018-12-070.060000
292021-10-060.041000
302022-07-060.046000
312024-05-080.080000
322025-06-040.034000
332023-02-080.014000
342024-09-110.029000
352017-08-090.028000
362020-05-060.010000
372023-05-030.055000
382020-03-040.020000
392023-06-070.052000
402025-08-060.032000
412025-11-050.037000
422016-06-070.037000
432019-09-110.035000
442022-02-090.033000
452018-10-100.027000
462016-08-090.043000
472017-03-080.011000
482017-07-120.024000
492023-07-050.054000
502023-08-090.046000
512022-04-060.059000
522023-01-040.007000
532025-04-090.080000
542020-09-090.051000
552020-10-070.092000
562021-09-080.059000
572024-12-040.049000
582022-11-090.003000
592017-06-070.024000
602017-09-060.023000
612025-01-080.008000
622025-10-080.027000
632018-11-070.009000
642020-08-050.023000
652022-01-050.006000
662026-03-040.009000
672024-08-070.040000
682015-12-110.080000
692019-06-050.036000
702015-09-090.029000
712017-12-080.040000
722026-06-030.087000
732023-04-050.072000
742019-04-100.017000
752020-12-090.045000
762016-12-090.051000
772021-04-070.044000
782016-10-040.025000
792021-03-100.033000
802021-08-110.077000
812024-03-060.017000
822017-05-100.018000
832024-04-030.056000
842015-08-120.061000
852022-06-080.119000
862025-12-030.071000
872017-11-080.009000
882024-06-050.065000
892025-09-100.047000
902026-04-080.036000
912026-08-050.053000
922022-05-040.077000
932019-05-080.027000
942023-03-080.007000
952018-05-090.028000
962019-08-070.014000
972016-07-120.055000
982017-04-050.029000
992018-06-290.045000
1002021-05-050.060000
1012020-04-080.030000
1022023-12-060.033000
1032024-10-090.026000
1042018-03-070.007000
1052021-06-090.069000
1062022-09-070.092000
1072025-03-050.024000