Greg Pomerantz
bb8e39605e
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)
3.9 KiB
3.9 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 2015-06-01 | 0.048000 |
| 3 | 2019-08-19 | 0.101000 |
| 4 | 2021-05-24 | 0.025000 |
| 5 | 2025-04-21 | 0.186000 |
| 6 | 2009-04-24 | 0.017000 |
| 7 | 2011-10-03 | 0.022000 |
| 8 | 2015-11-02 | 0.038000 |
| 9 | 2018-06-04 | 0.103000 |
| 10 | 2021-12-20 | 0.023000 |
| 11 | 2022-07-18 | 0.059000 |
| 12 | 2023-04-24 | 0.183000 |
| 13 | 2024-02-20 | 0.229000 |
| 14 | 2008-04-24 | 0.085000 |
| 15 | 2015-05-01 | 0.049000 |
| 16 | 2017-12-04 | 0.059000 |
| 17 | 2018-02-02 | 0.081000 |
| 18 | 2022-01-24 | 0.020000 |
| 19 | 2025-02-24 | 0.198000 |
| 20 | 2008-10-27 | 0.080000 |
| 21 | 2012-07-02 | 0.019000 |
| 22 | 2012-12-27 | 0.117000 |
| 23 | 2022-04-18 | 0.029000 |
| 24 | 2023-09-18 | 0.216000 |
| 25 | 2013-03-01 | 0.056000 |
| 26 | 2014-10-01 | 0.044000 |
| 27 | 2015-12-29 | 0.086000 |
| 28 | 2018-04-03 | 0.087000 |
| 29 | 2018-10-22 | 0.094000 |
| 30 | 2018-12-26 | 0.005000 |
| 31 | 2022-05-23 | 0.038000 |
| 32 | 2024-07-22 | 0.220000 |
| 33 | 2015-10-01 | 0.034000 |
| 34 | 2019-03-18 | 0.133000 |
| 35 | 2022-10-24 | 0.113000 |
| 36 | 2025-09-22 | 0.185000 |
| 37 | 2026-05-18 | 0.180000 |
| 38 | 2009-03-25 | 0.017000 |
| 39 | 2013-11-01 | 0.042000 |
| 40 | 2014-11-03 | 0.061000 |
| 41 | 2018-09-24 | 0.120000 |
| 42 | 2020-11-23 | 0.035000 |
| 43 | 2023-05-22 | 0.185000 |
| 44 | 2008-08-25 | 0.073000 |
| 45 | 2009-08-25 | 0.003000 |
| 46 | 2011-12-01 | 0.024000 |
| 47 | 2014-03-03 | 0.033000 |
| 48 | 2016-05-02 | 0.056000 |
| 49 | 2016-10-03 | 0.051000 |
| 50 | 2021-03-22 | 0.030000 |
| 51 | 2022-08-22 | 0.073000 |
| 52 | 2026-01-20 | 0.187000 |
| 53 | 2026-03-23 | 0.170000 |
| 54 | 2026-07-20 | 0.168000 |
| 55 | 2009-06-24 | 0.011000 |
| 56 | 2010-12-27 | 0.005000 |
| 57 | 2012-02-01 | 0.010000 |
| 58 | 2014-02-03 | 0.032000 |
| 59 | 2026-06-22 | 0.177000 |
| 60 | 2008-07-25 | 0.077000 |
| 61 | 2012-06-01 | 0.018000 |
| 62 | 2017-02-01 | 0.059000 |
| 63 | 2017-09-01 | 0.066000 |
| 64 | 2022-12-19 | 0.212000 |
| 65 | 2025-07-21 | 0.189000 |
| 66 | 2014-12-01 | 0.043000 |
| 67 | 2025-08-18 | 0.189000 |
| 68 | 2014-12-29 | 0.169000 |
| 69 | 2015-08-03 | 0.045000 |
| 70 | 2017-04-03 | 0.058000 |
| 71 | 2019-02-19 | 0.089000 |
| 72 | 2020-06-22 | 0.063000 |
| 73 | 2024-12-23 | 0.204000 |
| 74 | 2025-10-20 | 0.180000 |
| 75 | 2011-11-01 | 0.025000 |
| 76 | 2013-09-03 | 0.038000 |
| 77 | 2015-09-01 | 0.041000 |
| 78 | 2022-03-21 | 0.023000 |
| 79 | 2022-11-21 | 0.110000 |
| 80 | 2023-02-21 | 0.141000 |
| 81 | 2024-10-21 | 0.207000 |
| 82 | 2025-11-24 | 0.180000 |
| 83 | 2008-03-25 | 0.135000 |
| 84 | 2009-01-26 | 0.031000 |
| 85 | 2011-09-01 | 0.024000 |
| 86 | 2016-12-28 | 0.092000 |
| 87 | 2017-03-01 | 0.049000 |
| 88 | 2017-10-03 | 0.064000 |
| 89 | 2019-12-23 | 0.124000 |
| 90 | 2024-08-19 | 0.230000 |
| 91 | 2011-08-01 | 0.018000 |
| 92 | 2011-12-28 | 0.039000 |
| 93 | 2012-10-01 | 0.026000 |
| 94 | 2019-04-22 | 0.121000 |
| 95 | 2020-01-21 | 0.103000 |
| 96 | 2020-08-24 | 0.075000 |
| 97 | 2020-12-21 | 0.041000 |
| 98 | 2021-04-19 | 0.028000 |
| 99 | 2023-03-20 | 0.183000 |
| 100 | 2023-12-18 | 0.393000 |
| 101 | 2024-04-22 | 0.221000 |
| 102 | 2009-07-27 | 0.005000 |
| 103 | 2019-06-24 | 0.119000 |
| 104 | 2020-04-20 | 0.085000 |
| 105 | 2024-06-24 | 0.228000 |
| 106 | 2013-10-01 | 0.037000 |
| 107 | 2015-04-01 | 0.055000 |
| 108 | 2016-03-01 | 0.050000 |
| 109 | 2019-07-22 | 0.115000 |
| 110 | 2008-05-23 | 0.078000 |
| 111 | 2013-06-03 | 0.047000 |
| 112 | 2016-02-01 | 0.038000 |
| 113 | 2018-08-02 | 0.102000 |
| 114 | 2019-11-18 | 0.108000 |
| 115 | 2016-04-01 | 0.059000 |
| 116 | 2016-07-01 | 0.052000 |
| 117 | 2017-12-28 | 0.265000 |
| 118 | 2018-12-24 | 0.153000 |
| 119 | 2011-07-01 | 0.005000 |
| 120 | 2013-12-27 | 0.091000 |
| 121 | 2016-08-01 | 0.047000 |
| 122 | 2016-09-01 | 0.052000 |
| 123 | 2018-08-20 | 0.049000 |
| 124 | 2019-01-22 | 0.115000 |
| 125 | 2023-08-21 | 0.203000 |
| 126 | 2008-12-24 | 0.168000 |
| 127 | 2012-03-01 | 0.005000 |
| 128 | 2012-05-01 | 0.017000 |
| 129 | 2015-02-02 | 0.052000 |
| 130 | 2015-03-02 | 0.048000 |
| 131 | 2016-11-01 | 0.050000 |
| 132 | 2018-07-03 | 0.101000 |
| 133 | 2019-10-21 | 0.112000 |
| 134 | 2021-01-19 | 0.034000 |
| 135 | 2025-01-21 | 0.209000 |
| 136 | 2008-11-21 | 0.048000 |
| 137 | 2013-05-01 | 0.055000 |
| 138 | 2016-06-01 | 0.055000 |
| 139 | 2019-05-20 | 0.122000 |
| 140 | 2024-11-18 | 0.233000 |
| 141 | 2025-12-22 | 0.180000 |
| 142 | 2012-11-01 | 0.038000 |
| 143 | 2013-04-01 | 0.051000 |
| 144 | 2014-09-02 | 0.044000 |
| 145 | 2017-06-01 | 0.063000 |
| 146 | 2021-07-19 | 0.022000 |
| 147 | 2024-01-22 | 0.221000 |
| 148 | 2026-02-23 | 0.174000 |
| 149 | 2008-09-24 | 0.081000 |
| 150 | 2016-12-01 | 0.051000 |
| 151 | 2018-03-02 | 0.130000 |
| 152 | 2018-05-02 | 0.090000 |
| 153 | 2018-11-19 | 0.099000 |
| 154 | 2020-03-23 | 0.088000 |
| 155 | 2020-07-20 | 0.053000 |
| 156 | 2023-11-20 | 0.221000 |
| 157 | 2024-05-20 | 0.228000 |
| 158 | 2008-06-24 | 0.081000 |
| 159 | 2009-09-24 | 0.001000 |
| 160 | 2012-08-01 | 0.019000 |
| 161 | 2013-07-01 | 0.039000 |
| 162 | 2014-08-01 | 0.048000 |
| 163 | 2020-02-24 | 0.092000 |
| 164 | 2013-02-01 | 0.042000 |
| 165 | 2024-03-18 | 0.222000 |
| 166 | 2012-04-02 | 0.014000 |
| 167 | 2013-08-01 | 0.042000 |
| 168 | 2017-08-01 | 0.115000 |
| 169 | 2020-05-18 | 0.079000 |
| 170 | 2020-10-19 | 0.029000 |
| 171 | 2021-02-22 | 0.030000 |
| 172 | 2021-10-18 | 0.019000 |
| 173 | 2022-09-19 | 0.094000 |
| 174 | 2023-07-24 | 0.205000 |
| 175 | 2024-09-23 | 0.217000 |
| 176 | 2025-05-19 | 0.198000 |
| 177 | 2013-12-02 | 0.039000 |
| 178 | 2021-06-21 | 0.022000 |
| 179 | 2022-02-22 | 0.020000 |
| 180 | 2009-02-23 | 0.023000 |
| 181 | 2012-12-03 | 0.055000 |
| 182 | 2017-05-01 | 0.057000 |
| 183 | 2017-11-02 | 0.055000 |
| 184 | 2026-04-20 | 0.163000 |
| 185 | 2009-05-22 | 0.014000 |
| 186 | 2014-04-01 | 0.041000 |
| 187 | 2014-06-02 | 0.046000 |
| 188 | 2023-06-20 | 0.184000 |
| 189 | 2012-09-04 | 0.020000 |
| 190 | 2014-05-01 | 0.036000 |
| 191 | 2015-12-01 | 0.044000 |
| 192 | 2017-07-03 | 0.105000 |
| 193 | 2019-09-23 | 0.209000 |
| 194 | 2021-08-23 | 0.021000 |
| 195 | 2025-06-23 | 0.200000 |
| 196 | 2014-07-01 | 0.047000 |
| 197 | 2015-07-01 | 0.043000 |
| 198 | 2021-11-22 | 0.020000 |
| 199 | 2022-06-21 | 0.049000 |
| 200 | 2023-01-23 | 0.140000 |
| 201 | 2023-10-23 | 0.216000 |
| 202 | 2025-03-24 | 0.196000 |