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)
3.1 KiB
3.1 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 2015-12-22 | 0.520000 |
| 3 | 1988-09-16 | 0.295000 |
| 4 | 1989-03-16 | 0.305000 |
| 5 | 2000-03-15 | 0.495000 |
| 6 | 2004-12-10 | 1.360000 |
| 7 | 2011-06-17 | 0.465000 |
| 8 | 2011-09-16 | 0.470000 |
| 9 | 2015-03-13 | 0.500000 |
| 10 | 2020-03-16 | 0.500000 |
| 11 | 2024-06-10 | 0.450000 |
| 12 | 1995-03-24 | 0.430000 |
| 13 | 1997-03-10 | 0.465000 |
| 14 | 2005-03-18 | 0.460000 |
| 15 | 2024-12-19 | 2.619000 |
| 16 | 1992-06-12 | 0.375000 |
| 17 | 1996-06-04 | 0.455000 |
| 18 | 2000-09-20 | 0.505000 |
| 19 | 2014-09-19 | 0.500000 |
| 20 | 1987-09-18 | 0.220000 |
| 21 | 1987-12-28 | 0.280000 |
| 22 | 1993-03-30 | 0.390000 |
| 23 | 1994-09-16 | 0.420000 |
| 24 | 2005-06-20 | 0.465000 |
| 25 | 2021-06-14 | 0.400000 |
| 26 | 1991-09-05 | 0.360000 |
| 27 | 1992-09-11 | 0.380000 |
| 28 | 2003-06-20 | 0.505000 |
| 29 | 2020-06-15 | 0.500000 |
| 30 | 2026-06-15 | 0.480000 |
| 31 | 2012-09-21 | 0.485000 |
| 32 | 2017-03-15 | 0.500000 |
| 33 | 2009-09-25 | 0.450000 |
| 34 | 2020-12-18 | 0.630000 |
| 35 | 2022-03-14 | 0.420000 |
| 36 | 2022-06-13 | 0.420000 |
| 37 | 2025-09-15 | 0.465000 |
| 38 | 1992-03-06 | 0.370000 |
| 39 | 2007-09-20 | 0.505000 |
| 40 | 2023-09-11 | 0.435000 |
| 41 | 2018-06-13 | 0.500000 |
| 42 | 2021-03-15 | 0.400000 |
| 43 | 2021-12-17 | 1.005000 |
| 44 | 1993-12-27 | 0.405000 |
| 45 | 2006-06-20 | 0.480000 |
| 46 | 2007-12-20 | 3.460000 |
| 47 | 2015-09-16 | 0.500000 |
| 48 | 2023-03-13 | 0.435000 |
| 49 | 2004-03-19 | 0.450000 |
| 50 | 2014-12-23 | 0.885000 |
| 51 | 1991-12-06 | 0.365000 |
| 52 | 1995-06-21 | 0.435000 |
| 53 | 1996-08-13 | 0.460000 |
| 54 | 2010-03-19 | 0.420000 |
| 55 | 2011-03-18 | 0.460000 |
| 56 | 2013-12-19 | 0.505000 |
| 57 | 2014-03-14 | 0.900000 |
| 58 | 1991-06-18 | 0.355000 |
| 59 | 1999-12-14 | 2.035000 |
| 60 | 2001-03-14 | 0.515000 |
| 61 | 2008-09-19 | 0.530000 |
| 62 | 2016-06-15 | 0.500000 |
| 63 | 2017-12-22 | 1.437000 |
| 64 | 1994-04-04 | 0.410000 |
| 65 | 1994-06-24 | 0.415000 |
| 66 | 1998-06-16 | 0.485000 |
| 67 | 2000-12-14 | 1.450000 |
| 68 | 2003-03-20 | 0.505000 |
| 69 | 2018-09-12 | 0.500000 |
| 70 | 2022-12-16 | 0.900000 |
| 71 | 1993-06-25 | 0.395000 |
| 72 | 1998-09-08 | 0.490000 |
| 73 | 2022-09-12 | 0.420000 |
| 74 | 1990-09-11 | 0.340000 |
| 75 | 1994-12-09 | 0.425000 |
| 76 | 1995-12-18 | 0.445000 |
| 77 | 1999-06-07 | 0.485000 |
| 78 | 2004-08-31 | 0.150000 |
| 79 | 2004-09-20 | 0.455000 |
| 80 | 2009-12-18 | 0.615000 |
| 81 | 2025-12-18 | 4.537000 |
| 82 | 1996-03-04 | 0.450000 |
| 83 | 2010-09-17 | 0.450000 |
| 84 | 2014-06-13 | 0.500000 |
| 85 | 2018-12-21 | 0.640000 |
| 86 | 2020-09-14 | 0.500000 |
| 87 | 1998-12-14 | 3.305000 |
| 88 | 2002-12-12 | 1.028000 |
| 89 | 2003-09-19 | 0.505000 |
| 90 | 2004-07-30 | 0.150000 |
| 91 | 2011-12-20 | 0.690000 |
| 92 | 2012-03-16 | 0.475000 |
| 93 | 2019-03-13 | 0.500000 |
| 94 | 2013-09-20 | 0.490000 |
| 95 | 2016-12-23 | 0.530000 |
| 96 | 2017-06-14 | 0.500000 |
| 97 | 2019-12-20 | 1.183000 |
| 98 | 2023-12-15 | 0.993000 |
| 99 | 2005-09-20 | 0.470000 |
| 100 | 2013-03-15 | 0.485000 |
| 101 | 2016-03-16 | 0.500000 |
| 102 | 2016-09-14 | 0.500000 |
| 103 | 1997-06-09 | 0.470000 |
| 104 | 2000-06-20 | 0.500000 |
| 105 | 2009-03-20 | 0.440000 |
| 106 | 2018-03-14 | 0.500000 |
| 107 | 2019-09-11 | 0.500000 |
| 108 | 2024-03-11 | 0.450000 |
| 109 | 1992-12-18 | 0.385000 |
| 110 | 1995-09-15 | 0.440000 |
| 111 | 2002-09-20 | 0.510000 |
| 112 | 2003-12-12 | 0.623000 |
| 113 | 2017-09-13 | 0.500000 |
| 114 | 2013-06-14 | 0.490000 |
| 115 | 1989-09-11 | 0.315000 |
| 116 | 1990-03-19 | 0.330000 |
| 117 | 1990-06-12 | 0.335000 |
| 118 | 1990-12-11 | 0.345000 |
| 119 | 2008-03-20 | 0.520000 |
| 120 | 2008-12-19 | 0.985000 |
| 121 | 2012-12-20 | 0.760000 |
| 122 | 2019-06-12 | 0.500000 |
| 123 | 2023-06-12 | 0.435000 |
| 124 | 1991-03-07 | 0.350000 |
| 125 | 1997-09-11 | 0.475000 |
| 126 | 2025-03-10 | 0.465000 |
| 127 | 2025-06-09 | 0.465000 |
| 128 | 1988-03-18 | 0.285000 |
| 129 | 1989-12-18 | 0.325000 |
| 130 | 2002-06-20 | 0.510000 |
| 131 | 2006-09-20 | 0.485000 |
| 132 | 2009-06-19 | 0.450000 |
| 133 | 2010-12-20 | 0.690000 |
| 134 | 2021-09-13 | 0.400000 |
| 135 | 1989-06-09 | 0.310000 |
| 136 | 1999-09-02 | 0.490000 |
| 137 | 2015-06-17 | 0.500000 |
| 138 | 1996-12-06 | 1.195000 |
| 139 | 1997-12-22 | 2.090000 |
| 140 | 1998-03-23 | 0.480000 |
| 141 | 1999-03-31 | 0.480000 |
| 142 | 2001-06-20 | 0.520000 |
| 143 | 2001-09-20 | 0.525000 |
| 144 | 2005-12-20 | 0.940000 |
| 145 | 2024-09-16 | 0.450000 |
| 146 | 1988-06-14 | 0.290000 |
| 147 | 1993-09-17 | 0.400000 |
| 148 | 2026-03-16 | 0.480000 |
| 149 | 1988-12-28 | 0.300000 |
| 150 | 2002-03-20 | 0.510000 |
| 151 | 2007-03-20 | 0.495000 |
| 152 | 2008-06-20 | 0.525000 |
| 153 | 2010-06-18 | 0.450000 |
| 154 | 2012-06-15 | 0.480000 |
| 155 | 2002-10-25 | 0.069000 |
| 156 | 2003-09-22 | 0.505000 |
| 157 | 2006-03-20 | 0.475000 |
| 158 | 2006-12-20 | 1.960000 |
| 159 | 2001-12-13 | 1.696000 |
| 160 | 2007-06-20 | 0.500000 |