f/overrides/event-backup/ldrax-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

3.6 KiB

1DateDividends
22017-07-310.028000
32017-11-300.027000
42018-05-310.027000
52020-06-300.025000
62014-12-100.101000
72017-04-280.028000
82017-05-310.028000
92017-06-300.027000
102024-02-290.022000
112025-01-310.025000
122026-03-310.026000
132021-01-290.023000
142008-02-290.045000
152009-11-300.038000
162018-07-310.027000
172020-12-110.836000
182020-12-310.023000
192021-09-300.021000
202015-03-310.030000
212016-08-310.029000
222018-12-140.054000
232020-02-280.023000
242009-10-300.038000
252014-07-310.031000
262015-12-310.031000
272017-12-140.057000
282019-06-280.027000
292021-11-300.021000
302008-05-300.052000
312009-09-300.037000
322014-06-300.030000
332015-05-290.031000
342022-02-280.020000
352022-05-310.023000
362015-10-300.031000
372017-01-310.028000
382019-11-290.026000
392020-10-300.025000
402025-10-310.025000
412008-08-290.047000
422017-02-280.026000
432019-12-310.026000
442025-08-290.025000
452009-04-300.035000
462016-09-300.028000
472018-04-300.027000
482019-04-300.027000
492021-07-300.023000
502008-06-300.048000
512015-04-300.030000
522016-01-290.029000
532018-03-290.028000
542024-11-290.024000
552008-01-310.049000
562009-05-290.035000
572009-08-310.039000
582016-05-310.030000
592008-11-280.043000
602014-08-290.031000
612016-11-300.028000
622024-04-300.024000
632009-07-310.040000
642015-09-300.030000
652022-12-300.024000
662023-08-310.024000
672007-11-300.043000
682021-06-300.022000
692022-07-290.023000
702025-04-300.024000
712008-12-310.035000
722017-03-310.029000
732025-09-300.024000
742026-07-310.027000
752016-12-150.230000
762017-08-310.028000
772017-10-310.028000
782026-04-300.025000
792022-03-310.024000
802008-07-310.048000
812019-02-280.025000
822019-08-300.027000
832020-11-300.024000
842023-10-310.024000
852023-12-290.024000
862024-01-310.023000
872016-06-300.029000
882016-07-290.030000
892019-09-300.027000
902022-01-310.022000
912023-07-310.024000
922024-10-310.025000
932008-10-310.047000
942016-03-310.030000
952016-04-290.029000
962022-04-290.022000
972023-01-310.024000
982008-03-310.050000
992015-08-310.031000
1002018-10-310.028000
1012021-12-160.132000
1022021-03-310.023000
1032021-08-310.022000
1042025-07-310.025000
1052026-02-270.023000
1062008-04-300.050000
1072016-12-300.029000
1082018-06-290.026000
1092019-12-130.431000
1102026-06-300.025000
1112007-09-280.043000
1122018-01-310.028000
1132018-08-310.028000
1142022-06-300.022000
1152021-10-290.022000
1162024-03-280.027000
1172024-05-310.025000
1182025-03-310.025000
1192009-03-310.033000
1202018-12-310.028000
1212020-08-310.025000
1222021-04-300.021000
1232025-05-300.026000
1242025-12-310.026000
1252007-10-310.045000
1262023-05-310.024000
1272021-02-260.020000
1282023-02-280.022000
1292023-06-300.024000
1302023-11-300.024000
1312015-01-300.031000
1322015-06-300.022000
1332015-07-310.031000
1342017-12-290.028000
1352014-12-310.031000
1362015-11-300.030000
1372024-07-310.024000
1382025-11-280.024000
1392009-01-300.030000
1402019-03-290.028000
1412019-10-310.027000
1422024-09-300.024000
1432022-09-300.023000
1442025-06-300.025000
1452015-02-270.028000
1462016-02-290.028000
1472020-03-310.026000
1482022-08-310.023000
1492020-05-290.026000
1502022-10-310.023000
1512022-11-300.023000
1522023-09-290.023000
1532009-06-300.037000
1542014-05-300.032000
1552016-10-310.029000
1562018-09-280.026000
1572024-08-300.025000
1582020-07-310.026000
1592024-06-280.024000
1602009-12-310.040000
1612014-10-310.031000
1622019-01-310.028000
1632020-04-300.026000
1642008-09-300.045000
1652014-09-300.029000
1662021-05-280.022000
1672026-01-300.026000
1682021-12-310.022000
1692026-05-290.026000
1702009-02-270.024000
1712017-09-290.027000
1722018-02-280.025000
1732018-11-300.027000
1742020-01-310.025000
1752020-09-300.025000
1762023-03-310.025000
1772023-04-280.024000
1782007-12-310.048000
1792015-12-110.382000
1802019-05-310.027000
1812019-07-310.028000
1822024-12-310.024000
1832025-02-280.023000