f/overrides/event-backup/dsfix-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

2.4 KiB

1DateDividends
22018-01-300.012000
32019-01-300.004000
42019-08-290.020000
52022-08-300.020000
62024-08-290.014000
72024-09-270.034000
82016-07-280.008000
92017-05-300.016000
102023-11-290.013000
112026-07-300.038000
122019-04-290.023000
132022-10-280.018000
142018-04-270.018000
152020-12-140.057000
162022-12-120.029000
172017-03-300.018000
182018-10-300.023000
192024-02-280.012000
202025-02-270.014000
212019-03-280.021000
222024-01-300.024000
232025-11-260.034000
242020-04-290.015000
252021-03-300.020000
262018-05-300.020000
272020-10-290.023000
282018-03-280.021000
292021-08-300.017000
302021-11-290.010000
312022-02-250.014000
322024-03-270.020000
332017-11-290.013000
342021-06-290.018000
352021-10-280.010000
362025-10-300.040000
372026-04-290.034000
382016-12-140.023000
392018-11-290.014000
402019-09-270.018000
412019-12-160.059000
422022-06-290.020000
432026-05-280.037000
442017-06-290.017000
452018-02-270.008000
462019-07-300.021000
472023-04-270.020000
482025-12-100.049000
492016-10-280.017000
502021-05-270.015000
512022-05-270.018000
522023-08-300.029000
532024-05-300.015000
542024-06-270.039000
552019-11-270.013000
562022-07-280.019000
572023-09-280.042000
582016-11-290.016000
592020-03-300.022000
602025-07-300.031000
612020-05-280.015000
622025-06-270.030000
632026-03-300.027000
642017-12-140.029000
652018-09-270.016000
662019-05-300.022000
672020-08-280.007000
682026-01-290.007000
692017-07-280.016000
702021-09-290.016000
712021-12-130.131000
722023-10-300.033000
732024-07-300.024000
742016-05-270.011000
752021-04-290.017000
762025-05-290.029000
772016-09-290.006000
782017-04-270.014000
792019-02-270.027000
802022-01-280.011000
812026-06-290.039000
822016-06-290.013000
832025-08-280.030000
842017-10-300.018000
852020-02-270.017000
862020-06-290.023000
872021-02-250.012000
882022-03-300.021000
892022-11-290.021000
902023-02-270.019000
912024-04-290.039000
922024-10-300.052000
932019-10-300.015000
942020-11-270.016000
952022-04-280.017000
962023-05-300.020000
972024-12-100.050000
982025-03-280.023000
992026-02-260.015000
1002020-01-300.016000
1012018-08-300.020000
1022017-01-300.011000
1032023-07-280.017000
1042017-08-300.018000
1052023-06-290.030000
1062017-02-270.013000
1072018-07-300.022000
1082020-07-300.016000
1092023-12-110.055000
1102016-04-280.004000
1112020-09-290.017000
1122025-04-290.031000
1132016-08-300.007000
1142018-06-280.023000
1152021-07-290.016000
1162025-09-290.046000
1172019-06-270.022000
1182024-11-270.031000
1192018-12-170.048000
1202022-09-290.017000
1212023-03-300.022000