f/overrides/event-backup/ineax-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

14 KiB

1DateDividends
21987-07-310.176000
31998-11-250.140000
42000-05-240.136000
52008-12-310.100000
62024-04-300.050000
72026-01-300.058000
81990-03-300.140000
91991-06-240.132000
101992-05-270.140000
111992-07-270.140000
122002-09-300.076000
132005-11-290.068000
142015-05-290.044000
152018-11-300.052000
162000-10-240.124000
172001-04-260.132000
181990-10-250.148000
192003-07-240.064000
202009-01-300.064000
212016-12-300.052000
221989-07-310.172000
232001-02-280.108000
242002-10-310.080000
252005-10-270.064000
262020-05-290.048000
272023-04-280.045000
281990-04-250.140000
291993-11-240.172000
302008-08-270.072000
312009-02-270.068000
322023-01-310.045000
331985-12-020.188000
341995-08-280.124000
351999-10-250.124000
362006-01-260.068000
372007-04-250.064000
382026-02-270.055000
391991-08-260.148000
401996-05-290.148000
411997-02-280.128000
422000-02-240.140000
432008-11-250.068000
442013-12-310.064000
451993-02-250.140000
461997-03-310.140000
471999-09-220.120000
482002-05-310.088000
492003-02-280.056000
502006-12-180.172000
512009-08-240.068000
522023-06-300.048000
531989-03-310.180000
541996-12-310.120000
551997-04-300.120000
562005-03-310.056000
572010-04-300.068000
582016-05-310.040000
592024-01-310.050000
601990-08-310.152000
611994-02-280.144000
621998-10-300.156000
632005-08-290.064000
642005-06-290.064000
652005-08-310.064000
662012-12-310.068000
672026-06-300.053000
681996-07-310.140000
692001-03-260.124000
702015-01-300.048000
712017-02-280.044000
722018-04-300.040000
731986-03-310.192000
741991-07-310.132000
751998-06-300.148000
762000-03-310.144000
772000-08-310.140000
782016-11-300.056000
792024-02-290.050000
802025-09-300.055000
811985-01-020.220000
821990-02-280.136000
831991-12-270.164000
842009-10-260.064000
852014-01-310.052000
862014-12-310.052000
871984-02-010.220000
881987-06-010.160000
891995-04-280.120000
901995-10-270.132000
912006-11-300.076000
922007-03-300.064000
932014-09-300.048000
942015-02-270.048000
952025-12-310.061000
961984-08-010.224000
971988-06-290.200000
981993-06-300.144000
991993-10-290.140000
1001996-11-290.120000
1012003-07-310.064000
1022003-12-310.084000
1032011-12-300.060000
1041985-09-030.196000
1051989-12-290.148000
1061991-03-260.128000
1071994-09-300.132000
1082004-09-240.068000
1092010-07-300.068000
1101992-10-300.152000
1111998-05-280.136000
1121998-09-300.164000
1132001-10-260.104000
1142001-11-300.096000
1152004-11-240.072000
1162021-07-300.041000
1172021-11-300.043000
1181985-11-010.204000
1191990-12-310.148000
1201999-10-290.120000
1211999-11-300.140000
1222007-02-230.064000
1231991-11-290.148000
1242000-11-300.124000
1252007-07-250.072000
1262025-03-310.049000
1271994-01-310.164000
1282000-06-210.132000
1292002-03-280.100000
1302008-09-300.072000
1312010-12-310.068000
1322020-03-310.044000
1332021-06-300.041000
1341989-02-270.164000
1352002-11-290.072000
1362009-09-300.064000
1372024-11-290.053000
1382025-07-310.053000
1391984-11-010.240000
1401988-09-010.208000
1411990-06-290.132000
1421996-01-310.132000
1432000-04-280.124000
1442005-09-290.064000
1452008-03-270.056000
1462009-07-310.072000
1472017-11-300.052000
1482023-03-310.044000
1491984-06-010.228000
1501991-10-310.152000
1511992-02-280.128000
1521992-11-300.144000
1531995-12-280.124000
1542017-10-310.048000
1552021-12-020.043000
1561989-12-280.136000
1571996-01-260.120000
1582000-09-210.132000
1592003-03-310.056000
1602007-03-260.064000
1612011-09-300.064000
1621997-09-260.124000
1631998-12-220.124000
1641998-12-310.132000
1652004-10-290.068000
1662008-04-300.052000
1672013-11-290.056000
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1691989-04-280.180000
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1712007-09-280.072000
1722021-12-310.043000
1731985-10-010.204000
1741988-04-280.168000
1752002-12-310.076000
1762003-05-230.056000
1772008-06-300.076000
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1832021-04-300.041000
1841991-01-280.132000
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1872015-06-300.048000
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1942001-04-300.128000
1952003-05-300.060000
1962004-09-300.064000
1972006-06-260.064000
1982009-06-300.076000
1992016-02-290.048000
2002025-01-310.052000
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2042015-11-300.048000
2052023-08-310.052000
2062026-04-300.052000
2071996-06-280.136000
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2142005-05-260.064000
2152005-12-220.076000
2162006-01-310.060000
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2191990-05-310.144000
2201999-03-310.148000
2211999-08-310.124000
2222006-02-280.064000
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2242009-01-230.072000
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2272023-11-300.050000
2281986-07-310.192000
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2302004-02-250.068000
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2322008-07-310.068000
2332011-11-300.076000
2342012-08-310.060000
2352020-11-300.045000
2362023-07-310.049000
2371984-10-010.216000
2382007-02-280.056000
2392002-08-260.076000
2402003-01-220.068000
2412013-09-300.056000
2422018-03-290.040000
2432021-05-280.041000
2441992-04-300.144000
2451992-10-260.156000
2461997-07-280.116000
2471998-01-300.112000
2482002-03-260.092000
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2502008-10-310.068000
2512009-10-300.064000
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2601986-06-300.188000
2611988-02-020.168000
2621988-09-290.172000
2631990-04-300.140000
2641996-03-290.124000
2651999-04-230.140000
2662018-07-310.044000
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2712007-11-260.080000
2721988-10-310.168000
2731991-06-280.124000
2741991-10-250.148000
2751994-06-270.136000
2762000-08-250.136000
2772001-05-310.116000
2782002-01-250.092000
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2802009-05-260.076000
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2822009-05-290.076000
2832011-05-310.068000
2842016-07-290.044000
2852019-07-310.048000
2862020-01-310.048000
2872025-05-300.050000
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3462020-12-310.046000
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7012006-07-260.068000
7022007-08-240.072000
7032009-06-240.076000
7042019-02-280.048000
7051988-07-280.168000
7061996-07-290.124000
7071997-01-310.112000
7082007-07-310.072000
7092014-05-300.052000
7102018-02-280.044000
7112020-02-280.048000
7122021-08-310.041000
7131996-04-290.124000
7141998-04-280.132000
7152005-04-280.064000
7162007-06-250.072000
7172017-12-290.052000
7182022-10-310.047000
7191994-07-270.136000
7202001-09-280.104000
7212006-09-290.072000
7222010-08-310.068000
7232006-08-310.068000
7241993-09-300.132000
7251995-03-310.120000
7261996-09-300.156000
7272002-12-200.068000
7282003-09-300.064000
7292005-03-300.060000
7302017-06-300.048000
7312019-01-310.052000
7322025-02-280.052000
7331990-02-230.136000
7342003-11-280.068000
7352009-09-240.068000
7362024-03-280.049000
7371991-08-300.144000
7381994-11-290.160000
7391995-11-280.124000
7402004-03-310.072000