f/overrides/event-backup/dcpyx-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

3.5 KiB

1DateDividends
22014-09-300.027000
32014-12-310.027000
42016-11-300.019000
52021-07-300.022000
62023-06-300.029000
72020-12-310.022000
82021-03-310.026000
92021-08-310.023000
102012-02-290.028000
112012-12-310.029000
122014-08-290.025000
132015-10-300.026000
142018-01-310.022000
152024-02-290.032000
162025-12-310.040000
172014-03-310.029000
182020-06-300.025000
192023-11-300.031000
202023-04-280.028000
212012-07-310.027000
222015-06-300.026000
232018-09-280.025000
242021-11-300.023000
252023-01-310.030000
262012-10-310.028000
272013-12-310.031000
282015-08-310.023000
292019-12-310.026000
302024-10-310.031000
312016-07-290.024000
322017-12-070.047000
332019-08-300.026000
342021-06-300.025000
352022-04-290.022000
362025-05-300.038000
372025-07-310.036000
382016-01-290.022000
392016-05-310.025000
402020-07-310.023000
412021-12-310.021000
422022-06-300.024000
432013-07-310.028000
442013-12-120.129000
452018-06-290.026000
462019-01-310.030000
472020-09-300.022000
482014-01-310.029000
492021-05-280.021000
502022-12-300.028000
512023-09-290.029000
522012-08-310.028000
532018-07-310.029000
542018-04-300.028000
552018-11-300.028000
562013-02-280.024000
572014-02-280.027000
582015-07-310.027000
592015-09-300.025000
602018-03-290.025000
612012-05-310.028000
622021-01-290.020000
632026-01-300.033000
642012-04-300.029000
652018-08-310.027000
662023-02-280.027000
672024-01-310.032000
682022-08-310.027000
692022-10-310.027000
702022-11-300.028000
712014-07-310.026000
722015-02-270.024000
732015-03-310.026000
742017-05-310.021000
752021-02-260.021000
762026-03-310.029000
772016-12-080.062000
782017-02-280.019000
792021-10-290.021000
802023-08-310.031000
812024-11-290.032000
822013-08-300.027000
832016-09-300.024000
842017-09-290.023000
852019-11-290.024000
862023-03-310.030000
872024-03-280.034000
882024-12-030.017000
892013-05-310.025000
902016-02-290.023000
912020-10-300.022000
922026-04-300.030000
932018-02-280.022000
942019-03-290.027000
952022-09-300.025000
962012-03-300.030000
972013-01-310.027000
982013-03-280.027000
992014-06-300.029000
1002017-06-300.024000
1012025-01-310.034000
1022024-07-310.034000
1032024-12-310.032000
1042015-04-300.025000
1052017-04-280.020000
1062019-07-310.030000
1072020-01-310.025000
1082021-04-300.024000
1092012-09-280.025000
1102012-11-300.025000
1112020-11-300.022000
1122025-02-280.032000
1132025-06-300.034000
1142025-09-300.035000
1152026-02-270.026000
1162014-04-300.027000
1172014-05-300.028000
1182016-04-290.025000
1192017-12-290.022000
1202021-12-090.099000
1212026-07-310.038000
1222020-03-310.026000
1232023-05-310.032000
1242012-06-290.027000
1252016-08-310.023000
1262016-10-310.020000
1272017-07-310.021000
1282019-04-300.030000
1292012-12-130.242000
1302013-11-290.028000
1312018-12-310.030000
1322024-05-310.036000
1332022-03-310.023000
1342023-10-310.032000
1352025-11-280.035000
1362015-01-300.025000
1372016-06-300.025000
1382020-05-290.023000
1392021-09-300.022000
1402022-02-280.020000
1412016-12-300.041000
1422017-03-310.025000
1432020-02-280.024000
1442025-04-300.034000
1452022-01-310.022000
1462022-05-310.025000
1472023-12-290.034000
1482013-06-280.027000
1492014-11-280.025000
1502015-12-310.028000
1512017-01-310.028000
1522018-05-310.027000
1532025-03-310.033000
1542019-05-310.028000
1552019-09-300.027000
1562024-06-280.031000
1572025-10-310.040000
1582026-05-290.036000
1592026-06-300.033000
1602013-10-310.031000
1612016-03-310.026000
1622019-02-280.027000
1632020-12-090.024000
1642024-08-300.036000
1652020-08-310.022000
1662022-07-290.023000
1672023-07-310.031000
1682013-09-300.027000
1692015-05-290.025000
1702015-11-300.023000
1712017-10-310.022000
1722018-10-310.030000
1732025-12-020.034000
1742024-04-300.033000
1752024-09-300.029000
1762025-08-290.038000
1772013-04-300.025000
1782014-10-310.025000
1792019-06-280.025000
1802019-10-310.026000
1812020-04-300.023000
1822017-08-310.022000