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)
3.2 KiB
3.2 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 1993-05-03 | 0.020833 |
| 3 | 2020-05-26 | 0.063000 |
| 4 | 1991-05-06 | 0.020833 |
| 5 | 2004-08-30 | 0.050000 |
| 6 | 2005-05-27 | 0.050000 |
| 7 | 2007-05-30 | 0.063000 |
| 8 | 2008-11-26 | 0.063000 |
| 9 | 2011-11-25 | 0.063000 |
| 10 | 2012-11-28 | 0.063000 |
| 11 | 2017-08-28 | 0.063000 |
| 12 | 2001-04-27 | 0.050000 |
| 13 | 1994-05-02 | 0.020833 |
| 14 | 2004-05-27 | 0.050000 |
| 15 | 2015-08-27 | 0.063000 |
| 16 | 1987-05-08 | 0.020833 |
| 17 | 2003-05-29 | 0.050000 |
| 18 | 2009-11-25 | 0.063000 |
| 19 | 2010-08-30 | 0.063000 |
| 20 | 2013-03-06 | 0.063000 |
| 21 | 2017-02-27 | 0.063000 |
| 22 | 2018-02-27 | 0.063000 |
| 23 | 1991-08-05 | 0.020833 |
| 24 | 1999-07-29 | 0.041667 |
| 25 | 1999-10-28 | 0.041667 |
| 26 | 2000-07-28 | 0.041667 |
| 27 | 2003-11-26 | 0.050000 |
| 28 | 2007-11-29 | 0.063000 |
| 29 | 2009-02-26 | 0.063000 |
| 30 | 2009-05-28 | 0.063000 |
| 31 | 1987-02-06 | 0.020833 |
| 32 | 2013-08-28 | 0.063000 |
| 33 | 2009-08-28 | 0.063000 |
| 34 | 2013-11-26 | 0.063000 |
| 35 | 2012-05-30 | 0.063000 |
| 36 | 2006-08-30 | 0.063000 |
| 37 | 1998-04-29 | 0.041667 |
| 38 | 2006-05-30 | 0.063000 |
| 39 | 2018-05-29 | 0.063000 |
| 40 | 2021-11-23 | 0.063000 |
| 41 | 2022-05-24 | 0.063000 |
| 42 | 2025-02-26 | 0.063000 |
| 43 | 2025-08-20 | 0.063000 |
| 44 | 1994-10-31 | 0.020833 |
| 45 | 2002-04-29 | 0.050000 |
| 46 | 2026-02-25 | 0.063000 |
| 47 | 1988-11-04 | 0.020833 |
| 48 | 2007-08-30 | 0.063000 |
| 49 | 2010-05-27 | 0.063000 |
| 50 | 2026-05-27 | 0.063000 |
| 51 | 1991-02-04 | 0.020833 |
| 52 | 1999-01-28 | 0.041667 |
| 53 | 2003-02-27 | 0.050000 |
| 54 | 2004-11-29 | 0.050000 |
| 55 | 2014-11-25 | 0.063000 |
| 56 | 2020-11-24 | 0.063000 |
| 57 | 1997-10-30 | 0.041667 |
| 58 | 1995-08-02 | 0.020833 |
| 59 | 2008-08-28 | 0.063000 |
| 60 | 2011-08-30 | 0.063000 |
| 61 | 2012-02-28 | 0.063000 |
| 62 | 1992-08-03 | 0.020833 |
| 63 | 2001-07-30 | 0.050000 |
| 64 | 2008-05-21 | 0.063000 |
| 65 | 2019-05-28 | 0.063000 |
| 66 | 1994-01-31 | 0.020833 |
| 67 | 1992-02-03 | 0.020833 |
| 68 | 1994-08-01 | 0.020833 |
| 69 | 2002-07-30 | 0.050000 |
| 70 | 1990-11-05 | 0.020833 |
| 71 | 1999-04-29 | 0.041667 |
| 72 | 2005-08-30 | 0.050000 |
| 73 | 2025-11-26 | 0.063000 |
| 74 | 1990-05-07 | 0.020833 |
| 75 | 1992-02-28 | 0.020833 |
| 76 | 2000-01-28 | 0.041667 |
| 77 | 2005-02-25 | 0.050000 |
| 78 | 2012-08-29 | 0.063000 |
| 79 | 2019-08-27 | 0.063000 |
| 80 | 1991-11-04 | 0.020833 |
| 81 | 1998-07-30 | 0.041667 |
| 82 | 2002-01-30 | 0.050000 |
| 83 | 2004-02-26 | 0.050000 |
| 84 | 2005-11-29 | 0.050000 |
| 85 | 2006-02-27 | 0.050000 |
| 86 | 2014-02-27 | 0.063000 |
| 87 | 2024-08-21 | 0.063000 |
| 88 | 1997-04-30 | 0.041667 |
| 89 | 2026-08-19 | 0.063000 |
| 90 | 1992-11-02 | 0.020833 |
| 91 | 1996-07-31 | 0.041667 |
| 92 | 2007-02-27 | 0.063000 |
| 93 | 2018-11-27 | 0.063000 |
| 94 | 2022-08-16 | 0.063000 |
| 95 | 2023-08-15 | 0.063000 |
| 96 | 1988-02-05 | 0.020833 |
| 97 | 1995-11-01 | 0.041667 |
| 98 | 2015-05-28 | 0.063000 |
| 99 | 1988-05-06 | 0.020833 |
| 100 | 1992-05-04 | 0.020833 |
| 101 | 2010-02-25 | 0.063000 |
| 102 | 2019-02-26 | 0.063000 |
| 103 | 2020-08-18 | 0.063000 |
| 104 | 2022-11-22 | 0.063000 |
| 105 | 2024-05-29 | 0.063000 |
| 106 | 2025-05-28 | 0.063000 |
| 107 | 1989-05-05 | 0.020833 |
| 108 | 1995-05-01 | 0.020833 |
| 109 | 2006-11-29 | 0.063000 |
| 110 | 2011-05-27 | 0.063000 |
| 111 | 1987-08-07 | 0.020833 |
| 112 | 1996-10-30 | 0.041667 |
| 113 | 2001-10-30 | 0.050000 |
| 114 | 2002-10-30 | 0.050000 |
| 115 | 2019-11-26 | 0.063000 |
| 116 | 2024-11-27 | 0.063000 |
| 117 | 1990-02-05 | 0.020833 |
| 118 | 1996-01-31 | 0.041667 |
| 119 | 2011-02-25 | 0.063000 |
| 120 | 2014-05-29 | 0.063000 |
| 121 | 2016-02-26 | 0.063000 |
| 122 | 2016-08-29 | 0.063000 |
| 123 | 1988-08-05 | 0.020833 |
| 124 | 1995-01-30 | 0.020833 |
| 125 | 2015-11-25 | 0.063000 |
| 126 | 2016-05-27 | 0.063000 |
| 127 | 2000-04-27 | 0.041667 |
| 128 | 1993-11-01 | 0.020833 |
| 129 | 1998-10-29 | 0.041667 |
| 130 | 2014-08-27 | 0.063000 |
| 131 | 2015-02-26 | 0.063000 |
| 132 | 2016-11-28 | 0.063000 |
| 133 | 2023-05-23 | 0.063000 |
| 134 | 2024-02-20 | 0.063000 |
| 135 | 1993-09-29 | 0.020833 |
| 136 | 1997-02-05 | 0.041667 |
| 137 | 2008-02-28 | 0.063000 |
| 138 | 2017-11-28 | 0.063000 |
| 139 | 2020-02-25 | 0.063000 |
| 140 | 2021-02-23 | 0.063000 |
| 141 | 2022-02-22 | 0.063000 |
| 142 | 2023-11-21 | 0.063000 |
| 143 | 1996-05-01 | 0.041667 |
| 144 | 2023-02-21 | 0.063000 |
| 145 | 1990-08-06 | 0.020833 |
| 146 | 1993-02-04 | 0.020833 |
| 147 | 2013-05-30 | 0.063000 |
| 148 | 1989-02-03 | 0.020833 |
| 149 | 2000-10-30 | 0.041667 |
| 150 | 2003-08-28 | 0.050000 |
| 151 | 1989-08-07 | 0.020833 |
| 152 | 1989-11-06 | 0.020833 |
| 153 | 1997-07-30 | 0.041667 |
| 154 | 1998-02-04 | 0.041667 |
| 155 | 2010-11-26 | 0.063000 |
| 156 | 2021-05-25 | 0.063000 |
| 157 | 1987-11-05 | 0.020833 |
| 158 | 2001-01-30 | 0.041667 |
| 159 | 2017-05-26 | 0.063000 |
| 160 | 2018-08-28 | 0.063000 |
| 161 | 2021-08-17 | 0.063000 |
| 162 | 1993-08-02 | 0.020833 |