f/overrides/event-backup/jiprx-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
22019-01-310.031000
32024-02-290.029000
42025-07-310.034000
52026-07-310.035000
62024-11-290.029000
72014-03-310.036000
82017-10-310.028000
92018-02-280.028000
102018-03-290.029000
112022-03-310.033000
122024-10-310.029000
132016-05-310.021000
142016-12-300.024000
152012-01-310.049000
162012-06-290.043000
172012-11-300.042000
182014-09-300.032000
192015-04-300.029000
202016-03-310.023000
212019-05-310.026000
222020-12-310.022000
232023-09-290.027000
242026-04-300.035000
252025-03-310.032000
262013-09-300.038000
272015-10-300.027000
282018-06-290.032000
292018-10-310.035000
302020-07-310.019000
312022-02-280.031000
322020-04-300.021000
332021-04-300.029000
342022-05-310.031000
352024-04-300.029000
362017-03-310.024000
372022-11-300.032000
382014-08-290.032000
392015-05-290.029000
402017-01-310.024000
412021-09-300.031000
422024-07-310.030000
432019-03-290.029000
442019-11-290.021000
452023-05-310.028000
462025-01-310.030000
472026-03-310.035000
482012-09-280.042000
492012-12-310.040000
502017-11-300.028000
512018-07-310.033000
522021-12-310.032000
532014-04-300.035000
542014-10-310.033000
552017-08-310.027000
562017-12-290.049000
572020-06-300.019000
582023-01-310.030000
592023-03-310.030000
602023-11-300.028000
612013-01-310.044000
622013-02-280.041000
632017-06-300.025000
642017-09-290.028000
652020-11-300.021000
662022-04-290.031000
672015-01-300.031000
682017-12-210.021000
692021-03-310.026000
702021-05-280.030000
712025-06-300.033000
722015-06-300.028000
732017-04-280.024000
742020-02-280.022000
752023-10-310.028000
762016-09-300.024000
772021-06-300.031000
782023-12-290.029000
792024-05-310.030000
802025-09-300.034000
812012-03-300.046000
822013-12-230.177000
832018-12-310.032000
842019-08-300.024000
852020-01-310.022000
862022-10-310.032000
872025-05-300.033000
882026-01-300.034000
892013-12-310.091000
902016-04-290.022000
912016-10-310.024000
922018-08-310.034000
932019-06-280.025000
942022-01-310.032000
952020-03-310.022000
962024-09-300.029000
972025-02-280.031000
982026-06-300.035000
992023-04-280.028000
1002024-12-310.030000
1012012-02-290.047000
1022012-07-310.044000
1032013-04-300.040000
1042015-09-300.027000
1052015-12-230.294000
1062016-02-290.026000
1072025-04-300.032000
1082014-05-300.035000
1092017-07-310.026000
1102019-02-280.029000
1112013-03-280.040000
1122015-02-270.030000
1132022-07-290.032000
1142022-09-300.031000
1152023-08-310.028000
1162024-06-280.029000
1172019-09-300.023000
1182020-05-290.019000
1192021-07-300.031000
1202025-10-310.034000
1212023-06-300.028000
1222026-02-270.033000
1232014-01-310.036000
1242014-02-280.035000
1252014-06-300.034000
1262014-11-280.032000
1272016-07-290.023000
1282022-06-300.032000
1292024-08-300.030000
1302015-03-310.030000
1312016-01-290.027000
1322016-11-300.023000
1332018-05-310.032000
1342018-11-300.033000
1352019-07-310.025000
1362025-11-280.033000
1372012-04-300.044000
1382013-05-310.039000
1392013-11-290.037000
1402015-08-310.027000
1412017-05-310.025000
1422021-08-310.031000
1432013-06-280.039000
1442018-04-300.030000
1452019-04-300.027000
1462022-08-310.032000
1472023-02-280.028000
1482013-08-300.039000
1492019-12-310.021000
1502020-08-310.019000
1512020-10-300.019000
1522012-05-310.044000
1532021-10-290.032000
1542024-03-280.030000
1552013-10-310.036000
1562015-12-310.028000
1572018-09-280.034000
1582021-11-300.032000
1592025-12-310.034000
1602026-05-290.035000
1612013-07-310.038000
1622014-12-310.053000
1632019-10-310.022000
1642021-01-290.024000
1652025-08-290.034000
1662012-10-310.042000
1672021-02-260.025000
1682022-12-300.060000
1692024-01-310.030000
1702015-07-310.028000
1712015-11-300.027000
1722017-02-280.024000
1732020-09-300.019000
1742012-08-310.043000
1752014-07-310.033000
1762016-06-300.022000
1772016-08-310.023000
1782018-01-310.029000
1792023-07-310.028000