f/overrides/event-backup/emdqx-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
22015-04-300.036000
32024-03-280.021000
42024-12-310.021000
52026-01-300.027000
62014-06-300.045000
72018-05-310.033000
82019-10-310.029000
92021-05-280.023000
102022-05-310.018000
112025-02-280.020000
122014-12-310.040000
132016-10-310.034000
142018-10-310.026000
152021-07-300.023000
162022-09-300.019000
172021-04-300.024000
182025-05-300.024000
192026-03-310.027000
202013-05-310.045000
212015-03-310.034000
222016-05-310.031000
232016-09-300.035000
242017-05-310.037000
252026-04-300.027000
262024-11-290.022000
272012-12-310.050000
282016-03-310.030000
292021-06-300.024000
302022-08-310.022000
312023-03-310.022000
322014-03-310.047000
332015-05-290.036000
342012-07-310.044000
352013-11-290.049000
362020-12-310.025000
372025-11-280.026000
382011-12-300.049000
392014-09-300.048000
402019-09-300.024000
412024-09-300.022000
422013-12-310.051000
432018-02-280.031000
442018-07-310.032000
452022-06-300.022000
462023-04-280.021000
472021-02-260.023000
482011-06-300.047000
492012-06-290.045000
502013-01-310.045000
512014-10-310.045000
522020-02-280.025000
532018-03-290.034000
542021-09-300.023000
552024-01-310.025000
562025-04-300.023000
572013-08-300.051000
582013-10-310.061000
592018-11-300.028000
602012-08-310.046000
612014-01-310.045000
622020-07-310.025000
632023-01-310.022000
642025-01-310.022000
652023-12-210.054000
662011-05-310.056000
672014-07-310.047000
682016-07-290.034000
692018-01-310.036000
702019-03-290.026000
712017-06-300.037000
722017-12-290.036000
732021-01-290.027000
742012-02-290.045000
752013-07-310.044000
762014-08-290.048000
772015-09-300.029000
782017-02-280.028000
792021-12-310.022000
802023-06-300.021000
812024-06-280.022000
822025-09-300.027000
832025-03-310.024000
842012-01-310.048000
852012-03-300.043000
862013-02-280.044000
872014-11-280.039000
882023-11-300.023000
892022-03-310.013000
902024-08-300.025000
912026-02-270.024000
922017-01-310.028000
932017-03-310.034000
942017-08-310.038000
952019-08-300.029000
962020-01-310.030000
972013-06-280.046000
982018-09-280.024000
992021-10-290.023000
1002019-01-310.031000
1012020-03-310.024000
1022023-09-290.021000
1032024-04-300.021000
1042025-07-310.026000
1052023-12-290.024000
1062026-06-300.028000
1072011-11-300.049000
1082012-11-300.048000
1092016-06-300.033000
1102018-08-310.034000
1112023-10-310.024000
1122023-07-310.025000
1132015-12-310.032000
1142019-11-290.028000
1152020-06-300.024000
1162022-04-290.019000
1172022-11-300.021000
1182013-04-300.045000
1192019-06-280.026000
1202023-05-310.022000
1212019-07-310.030000
1222020-08-310.024000
1232022-12-300.023000
1242011-07-290.048000
1252011-08-310.049000
1262015-01-300.039000
1272015-08-310.035000
1282018-06-290.032000
1292024-02-290.021000
1302024-10-310.024000
1312025-06-300.025000
1322025-08-290.027000
1332016-04-290.032000
1342016-11-300.030000
1352017-04-280.029000
1362017-07-310.032000
1372022-02-280.017000
1382012-12-210.048000
1392015-10-300.033000
1402017-11-300.035000
1412018-04-300.033000
1422023-02-280.019000
1432018-12-310.027000
1442020-05-290.023000
1452021-03-310.021000
1462012-09-280.043000
1472013-03-280.048000
1482014-04-300.047000
1492015-11-300.030000
1502017-10-310.036000
1512019-12-310.029000
1522020-04-300.021000
1532020-11-300.024000
1542012-04-300.043000
1552014-02-280.040000
1562015-06-300.037000
1572016-12-300.030000
1582019-04-300.025000
1592020-09-300.023000
1602022-01-310.021000
1612011-09-300.045000
1622016-01-290.030000
1632016-02-290.027000
1642016-08-310.034000
1652019-02-280.029000
1662026-07-310.028000
1672019-05-310.029000
1682021-11-300.021000
1692022-10-310.021000
1702024-05-310.022000
1712025-12-310.027000
1722021-08-310.023000
1732023-08-310.025000
1742024-07-310.025000
1752011-10-310.043000
1762012-05-310.046000
1772013-09-300.050000
1782014-05-300.046000
1792017-09-290.038000
1802025-10-310.027000
1812026-05-290.028000
1822022-07-290.019000
1832012-10-310.047000
1842012-12-260.049000
1852015-02-270.040000
1862015-07-310.039000
1872020-10-300.025000