f/overrides/event-backup/hfarx-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

2.6 KiB

1DateDividends
22020-12-210.272000
32021-08-310.011000
42023-05-310.015000
52023-06-300.017000
62023-07-310.018000
72024-09-300.018000
82024-12-310.024000
92025-08-290.026000
102025-12-310.028000
112016-07-260.022000
122017-05-250.028000
132024-11-290.019000
142025-05-300.026000
152025-11-280.024000
162016-05-250.021000
172017-11-300.020000
182022-02-280.011000
192023-01-310.017000
202019-08-300.014000
212019-11-290.013000
222022-03-310.015000
232026-03-310.028000
242017-07-310.028000
252017-01-260.026000
262018-12-310.049000
272022-05-310.012000
282024-07-310.021000
292018-02-280.018000
302023-08-310.014000
312018-08-310.020000
322019-06-280.014000
332019-12-310.008000
342026-02-270.024000
352021-04-300.017000
362018-05-310.018000
372018-12-200.219000
382020-05-290.016000
392020-06-300.019000
402018-01-310.021000
412022-04-290.014000
422019-01-310.015000
432019-12-190.197000
442020-02-280.011000
452020-04-300.018000
462017-06-270.029000
472021-01-290.015000
482016-10-260.022000
492020-01-310.012000
502020-11-300.018000
512023-12-290.017000
522026-07-310.027000
532016-01-260.020000
542016-12-270.025000
552019-03-290.019000
562022-07-290.012000
572025-07-310.027000
582018-10-310.017000
592019-07-310.014000
602021-06-300.011000
612023-04-280.018000
622025-06-300.028000
632019-09-300.011000
642019-10-310.013000
652020-10-300.018000
662023-10-310.017000
672026-01-300.027000
682026-06-300.027000
692015-12-300.022000
702016-06-270.022000
712017-10-310.024000
722018-07-310.017000
732021-11-300.012000
742024-03-280.022000
752025-10-310.021000
762019-04-300.015000
772020-07-310.020000
782024-10-310.018000
792025-02-280.025000
802017-03-280.027000
812017-12-290.020000
822020-08-310.017000
832022-12-220.536000
842023-09-290.012000
852025-03-310.029000
862021-07-300.014000
872023-02-280.017000
882024-01-310.020000
892016-04-260.019000
902016-08-260.022000
912021-12-310.012000
922024-05-310.021000
932017-09-290.013000
942018-03-290.018000
952018-06-290.017000
962022-12-300.012000
972026-05-290.029000
982021-05-280.012000
992022-09-300.012000
1002025-04-300.028000
1012016-02-240.019000
1022019-05-310.016000
1032020-03-310.012000
1042016-11-250.023000
1052018-11-300.017000
1062022-01-310.013000
1072022-08-310.013000
1082022-11-300.014000
1092023-03-310.018000
1102024-02-290.015000
1112024-04-300.017000
1122024-08-300.020000
1132016-09-270.019000
1142017-08-310.020000
1152021-02-260.015000
1162023-11-300.016000
1172016-03-280.019000
1182017-02-230.026000
1192017-04-250.028000
1202019-02-280.013000
1212022-10-310.013000
1222026-04-300.028000
1232020-09-300.012000
1242021-09-300.008000
1252021-10-290.015000
1262025-01-310.024000
1272025-09-300.021000
1282018-04-300.017000
1292020-12-310.019000
1302024-06-280.021000
1312018-09-280.022000
1322021-03-310.017000
1332022-06-300.013000