f/overrides/event-backup/arcfx-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
22026-01-300.024000
32026-05-290.029000
42026-07-310.032000
52016-06-160.039000
62018-08-310.033000
72023-02-280.036000
82023-10-310.038000
92025-05-300.028000
102019-07-310.028000
112022-07-290.025000
122023-09-290.037000
132024-11-290.029000
142017-07-310.017000
152019-11-290.028000
162021-08-310.026000
172023-08-310.035000
182025-10-310.032000
192025-11-280.034000
202017-04-280.034000
212017-12-140.024000
222018-06-290.017000
232020-10-300.019000
242023-07-310.035000
252025-06-300.032000
262014-12-090.093000
272019-06-280.024000
282020-12-310.021000
292024-01-310.038000
302024-10-310.033000
312017-06-300.015000
322022-05-310.022000
332024-09-300.035000
342026-04-300.024000
352017-10-310.025000
362021-12-310.012000
372022-02-280.018000
382022-06-300.024000
392022-10-310.029000
402016-09-150.036000
412019-10-310.027000
422022-04-290.021000
432023-01-310.036000
442023-04-280.037000
452025-01-310.029000
462025-09-300.033000
472017-05-310.023000
482017-12-290.012000
492019-04-300.025000
502023-06-300.035000
512023-12-290.041000
522022-12-300.040000
532024-08-300.034000
542016-03-170.044000
552016-12-150.088000
562022-08-310.030000
572024-07-310.036000
582025-08-290.029000
592017-03-160.028000
602019-05-310.025000
612024-03-280.035000
622015-12-160.087000
632018-09-280.031000
642021-02-260.017000
652022-09-300.024000
662018-02-280.015000
672021-04-300.014000
682023-03-310.034000
692019-01-310.030000
702019-08-300.026000
712021-10-290.023000
722017-09-290.021000
732020-04-300.020000
742017-08-310.022000
752020-03-310.011000
762025-03-310.028000
772026-06-300.036000
782020-07-310.020000
792021-01-290.022000
802021-06-300.025000
812021-07-300.025000
822025-07-310.035000
832015-03-190.035000
842015-06-180.084000
852018-05-310.012000
862022-11-300.041000
872024-02-290.040000
882021-05-280.015000
892018-11-300.028000
902021-11-300.026000
912022-01-310.015000
922024-12-310.048000
932018-01-310.015000
942019-03-290.024000
952021-03-310.010000
962025-02-280.028000
972020-01-310.027000
982024-04-300.035000
992023-05-310.035000
1002026-02-270.023000
1012017-11-300.010000
1022018-04-300.018000
1032020-02-280.024000
1042020-11-300.021000
1052022-03-310.023000
1062018-07-310.019000
1072019-02-280.026000
1082019-09-300.025000
1092020-05-290.025000
1102018-10-310.030000
1112018-12-310.026000
1122020-06-300.028000
1132020-09-300.032000
1142025-04-300.034000
1152026-03-310.018000
1162015-09-170.052000
1172019-12-310.030000
1182020-08-310.025000
1192023-11-300.044000
1202025-12-310.043000
1212018-03-290.011000
1222021-09-300.023000
1232024-05-310.038000
1242024-06-280.038000