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)
3.8 KiB
3.8 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 2015-04-30 | 0.063000 |
| 3 | 2016-01-29 | 0.063000 |
| 4 | 2017-05-31 | 0.059000 |
| 5 | 2019-01-31 | 0.059000 |
| 6 | 2019-09-30 | 0.059000 |
| 7 | 2011-10-31 | 0.068000 |
| 8 | 2013-01-31 | 0.067000 |
| 9 | 2014-07-31 | 0.064000 |
| 10 | 2020-06-30 | 0.059000 |
| 11 | 2023-03-31 | 0.054000 |
| 12 | 2011-12-15 | 0.068000 |
| 13 | 2013-04-30 | 0.067000 |
| 14 | 2021-08-31 | 0.054000 |
| 15 | 2024-01-31 | 0.054000 |
| 16 | 2024-03-28 | 0.054000 |
| 17 | 2013-05-31 | 0.067000 |
| 18 | 2018-08-31 | 0.059000 |
| 19 | 2019-06-28 | 0.059000 |
| 20 | 2026-07-31 | 0.059000 |
| 21 | 2013-09-30 | 0.068000 |
| 22 | 2023-06-30 | 0.054000 |
| 23 | 2023-09-29 | 0.054000 |
| 24 | 2016-09-30 | 0.059000 |
| 25 | 2019-12-18 | 0.059000 |
| 26 | 2025-06-30 | 0.057000 |
| 27 | 2025-12-16 | 0.057000 |
| 28 | 2026-02-27 | 0.057000 |
| 29 | 2013-06-28 | 0.067000 |
| 30 | 2014-09-30 | 0.064000 |
| 31 | 2014-12-11 | 0.071000 |
| 32 | 2014-01-31 | 0.067000 |
| 33 | 2017-07-31 | 0.059000 |
| 34 | 2022-04-29 | 0.049000 |
| 35 | 2022-10-31 | 0.050000 |
| 36 | 2025-05-30 | 0.054000 |
| 37 | 2012-06-29 | 0.068000 |
| 38 | 2013-03-28 | 0.067000 |
| 39 | 2013-10-31 | 0.067000 |
| 40 | 2025-09-30 | 0.056000 |
| 41 | 2026-01-30 | 0.056000 |
| 42 | 2013-11-29 | 0.067000 |
| 43 | 2022-05-31 | 0.050000 |
| 44 | 2015-02-27 | 0.063000 |
| 45 | 2016-04-29 | 0.063000 |
| 46 | 2018-09-28 | 0.059000 |
| 47 | 2020-08-31 | 0.059000 |
| 48 | 2023-02-28 | 0.054000 |
| 49 | 2012-05-31 | 0.067000 |
| 50 | 2012-07-31 | 0.068000 |
| 51 | 2014-03-31 | 0.064000 |
| 52 | 2024-05-31 | 0.054000 |
| 53 | 2014-10-31 | 0.064000 |
| 54 | 2023-07-31 | 0.054000 |
| 55 | 2011-07-29 | 0.067000 |
| 56 | 2011-09-30 | 0.068000 |
| 57 | 2012-10-31 | 0.067000 |
| 58 | 2011-08-31 | 0.068000 |
| 59 | 2022-09-30 | 0.050000 |
| 60 | 2024-10-31 | 0.053000 |
| 61 | 2011-04-29 | 0.068000 |
| 62 | 2012-08-31 | 0.067000 |
| 63 | 2018-06-29 | 0.059000 |
| 64 | 2015-01-30 | 0.063000 |
| 65 | 2017-09-29 | 0.059000 |
| 66 | 2021-09-30 | 0.054000 |
| 67 | 2021-12-16 | 0.139000 |
| 68 | 2023-04-28 | 0.054000 |
| 69 | 2011-02-28 | 0.068000 |
| 70 | 2012-01-31 | 0.068000 |
| 71 | 2012-09-28 | 0.067000 |
| 72 | 2024-06-28 | 0.054000 |
| 73 | 2025-10-31 | 0.056000 |
| 74 | 2019-07-31 | 0.059000 |
| 75 | 2019-11-29 | 0.059000 |
| 76 | 2022-06-30 | 0.050000 |
| 77 | 2021-10-29 | 0.054000 |
| 78 | 2022-11-30 | 0.050000 |
| 79 | 2025-01-31 | 0.054000 |
| 80 | 2015-03-31 | 0.063000 |
| 81 | 2015-05-29 | 0.063000 |
| 82 | 2020-10-30 | 0.059000 |
| 83 | 2017-02-28 | 0.059000 |
| 84 | 2020-05-29 | 0.059000 |
| 85 | 2022-01-31 | 0.049000 |
| 86 | 2022-07-29 | 0.050000 |
| 87 | 2011-11-30 | 0.068000 |
| 88 | 2016-07-29 | 0.059000 |
| 89 | 2016-08-31 | 0.059000 |
| 90 | 2021-05-28 | 0.054000 |
| 91 | 2022-02-28 | 0.050000 |
| 92 | 2026-06-30 | 0.060000 |
| 93 | 2010-07-30 | 0.069000 |
| 94 | 2014-05-30 | 0.063000 |
| 95 | 2018-12-18 | 0.059000 |
| 96 | 2025-02-28 | 0.054000 |
| 97 | 2026-03-31 | 0.059000 |
| 98 | 2016-11-30 | 0.059000 |
| 99 | 2019-10-31 | 0.059000 |
| 100 | 2021-11-30 | 0.054000 |
| 101 | 2020-11-30 | 0.059000 |
| 102 | 2022-08-31 | 0.050000 |
| 103 | 2024-08-30 | 0.053000 |
| 104 | 2024-12-11 | 0.054000 |
| 105 | 2013-07-31 | 0.067000 |
| 106 | 2014-06-30 | 0.063000 |
| 107 | 2014-08-29 | 0.064000 |
| 108 | 2020-12-17 | 0.054000 |
| 109 | 2021-01-29 | 0.054000 |
| 110 | 2024-11-29 | 0.054000 |
| 111 | 2015-11-30 | 0.063000 |
| 112 | 2017-03-31 | 0.059000 |
| 113 | 2019-03-29 | 0.059000 |
| 114 | 2018-03-29 | 0.059000 |
| 115 | 2022-12-15 | 0.054000 |
| 116 | 2023-05-31 | 0.054000 |
| 117 | 2018-11-30 | 0.059000 |
| 118 | 2019-08-30 | 0.059000 |
| 119 | 2023-08-31 | 0.054000 |
| 120 | 2024-09-30 | 0.054000 |
| 121 | 2010-12-16 | 0.068000 |
| 122 | 2016-06-30 | 0.059000 |
| 123 | 2016-10-31 | 0.059000 |
| 124 | 2018-04-30 | 0.059000 |
| 125 | 2021-06-30 | 0.054000 |
| 126 | 2022-03-31 | 0.049000 |
| 127 | 2023-11-30 | 0.054000 |
| 128 | 2025-07-31 | 0.057000 |
| 129 | 2011-01-31 | 0.068000 |
| 130 | 2012-03-30 | 0.067000 |
| 131 | 2017-01-31 | 0.059000 |
| 132 | 2018-02-28 | 0.059000 |
| 133 | 2018-05-31 | 0.059000 |
| 134 | 2021-03-31 | 0.054000 |
| 135 | 2021-04-30 | 0.054000 |
| 136 | 2025-04-30 | 0.054000 |
| 137 | 2010-10-29 | 0.066000 |
| 138 | 2015-10-30 | 0.063000 |
| 139 | 2017-11-30 | 0.059000 |
| 140 | 2020-03-31 | 0.059000 |
| 141 | 2020-07-31 | 0.060000 |
| 142 | 2025-11-28 | 0.057000 |
| 143 | 2011-06-30 | 0.068000 |
| 144 | 2015-12-10 | 0.064000 |
| 145 | 2016-12-08 | 0.059000 |
| 146 | 2015-09-30 | 0.063000 |
| 147 | 2017-04-28 | 0.059000 |
| 148 | 2021-02-26 | 0.054000 |
| 149 | 2023-01-31 | 0.054000 |
| 150 | 2024-07-31 | 0.054000 |
| 151 | 2012-04-30 | 0.068000 |
| 152 | 2013-08-30 | 0.067000 |
| 153 | 2015-06-30 | 0.063000 |
| 154 | 2025-03-31 | 0.054000 |
| 155 | 2025-08-29 | 0.056000 |
| 156 | 2012-12-13 | 0.116000 |
| 157 | 2014-02-28 | 0.068000 |
| 158 | 2015-08-31 | 0.063000 |
| 159 | 2017-08-31 | 0.059000 |
| 160 | 2020-04-30 | 0.059000 |
| 161 | 2010-11-30 | 0.068000 |
| 162 | 2011-05-31 | 0.067000 |
| 163 | 2012-11-30 | 0.067000 |
| 164 | 2024-04-30 | 0.054000 |
| 165 | 2016-02-29 | 0.063000 |
| 166 | 2017-10-31 | 0.059000 |
| 167 | 2019-02-28 | 0.059000 |
| 168 | 2017-12-06 | 0.081000 |
| 169 | 2018-07-31 | 0.059000 |
| 170 | 2018-10-31 | 0.059000 |
| 171 | 2010-09-30 | 0.068000 |
| 172 | 2013-02-28 | 0.068000 |
| 173 | 2016-05-31 | 0.063000 |
| 174 | 2026-05-29 | 0.059000 |
| 175 | 2013-12-12 | 0.068000 |
| 176 | 2015-07-31 | 0.063000 |
| 177 | 2016-03-31 | 0.063000 |
| 178 | 2014-11-28 | 0.064000 |
| 179 | 2017-06-30 | 0.059000 |
| 180 | 2020-01-31 | 0.059000 |
| 181 | 2024-02-29 | 0.054000 |
| 182 | 2026-04-30 | 0.060000 |
| 183 | 2010-08-31 | 0.069000 |
| 184 | 2012-02-29 | 0.068000 |
| 185 | 2014-04-30 | 0.064000 |
| 186 | 2020-09-30 | 0.059000 |
| 187 | 2021-07-30 | 0.054000 |
| 188 | 2023-12-14 | 0.054000 |
| 189 | 2019-04-30 | 0.059000 |
| 190 | 2019-05-31 | 0.059000 |
| 191 | 2020-02-28 | 0.059000 |
| 192 | 2011-03-31 | 0.067000 |
| 193 | 2018-01-31 | 0.059000 |
| 194 | 2023-10-31 | 0.054000 |