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)
4.0 KiB
4.0 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 2006-09-01 | 0.333000 |
| 3 | 2013-08-01 | 0.149000 |
| 4 | 2014-03-03 | 0.120000 |
| 5 | 2016-08-01 | 0.069000 |
| 6 | 2017-11-01 | 0.050000 |
| 7 | 2024-05-01 | 0.081000 |
| 8 | 2008-08-01 | 0.507000 |
| 9 | 2012-02-01 | 0.318000 |
| 10 | 2023-07-03 | 0.062000 |
| 11 | 2012-03-01 | 0.304000 |
| 12 | 2013-03-01 | 0.175000 |
| 13 | 2013-09-03 | 0.133000 |
| 14 | 2014-06-02 | 0.141000 |
| 15 | 2019-09-03 | 0.011000 |
| 16 | 2025-03-03 | 0.069000 |
| 17 | 2012-04-02 | 0.316000 |
| 18 | 2015-03-02 | 0.088000 |
| 19 | 2025-07-01 | 0.061000 |
| 20 | 2017-05-01 | 0.054000 |
| 21 | 2017-06-01 | 0.055000 |
| 22 | 2007-06-01 | 0.376000 |
| 23 | 2008-06-02 | 0.518000 |
| 24 | 2009-06-01 | 0.138000 |
| 25 | 2012-12-03 | 0.205000 |
| 26 | 2016-09-01 | 0.041000 |
| 27 | 2016-12-01 | 0.046000 |
| 28 | 2020-02-03 | 0.012000 |
| 29 | 2015-09-01 | 0.067000 |
| 30 | 2015-12-01 | 0.085000 |
| 31 | 2007-05-01 | 0.366000 |
| 32 | 2008-03-03 | 0.447000 |
| 33 | 2009-02-02 | 0.182000 |
| 34 | 2010-08-02 | 0.284000 |
| 35 | 2010-09-01 | 0.280000 |
| 36 | 2010-12-01 | 0.305000 |
| 37 | 2018-11-01 | 0.063000 |
| 38 | 2024-07-01 | 0.084000 |
| 39 | 2025-04-01 | 0.071000 |
| 40 | 2007-08-01 | 0.390000 |
| 41 | 2007-11-01 | 0.449000 |
| 42 | 2016-10-03 | 0.037000 |
| 43 | 2017-01-03 | 0.055000 |
| 44 | 2018-07-02 | 0.078000 |
| 45 | 2023-10-02 | 0.068000 |
| 46 | 2017-02-01 | 0.061000 |
| 47 | 2024-08-01 | 0.085000 |
| 48 | 2007-04-02 | 0.369000 |
| 49 | 2008-04-01 | 0.492000 |
| 50 | 2008-11-03 | 0.281000 |
| 51 | 2011-06-01 | 0.361000 |
| 52 | 2012-07-02 | 0.254000 |
| 53 | 2014-09-02 | 0.144000 |
| 54 | 2024-12-02 | 0.082000 |
| 55 | 2025-10-01 | 0.050000 |
| 56 | 2009-10-01 | 0.149000 |
| 57 | 2011-08-01 | 0.371000 |
| 58 | 2014-04-01 | 0.145000 |
| 59 | 2015-02-02 | 0.128000 |
| 60 | 2018-09-04 | 0.057000 |
| 61 | 2011-01-03 | 0.349000 |
| 62 | 2012-08-01 | 0.255000 |
| 63 | 2015-05-01 | 0.100000 |
| 64 | 2019-02-01 | 0.062000 |
| 65 | 2019-08-01 | 0.015000 |
| 66 | 2022-12-01 | 0.017000 |
| 67 | 2023-04-03 | 0.047000 |
| 68 | 2009-01-02 | 0.216000 |
| 69 | 2012-01-03 | 0.312000 |
| 70 | 2012-06-01 | 0.263000 |
| 71 | 2014-08-01 | 0.145000 |
| 72 | 2017-10-02 | 0.054000 |
| 73 | 2018-08-01 | 0.079000 |
| 74 | 2026-01-02 | 0.052000 |
| 75 | 2026-08-03 | 0.091000 |
| 76 | 2006-10-02 | 0.321000 |
| 77 | 2009-08-03 | 0.142000 |
| 78 | 2013-12-02 | 0.122000 |
| 79 | 2018-03-01 | 0.052000 |
| 80 | 2022-11-01 | 0.016000 |
| 81 | 2024-06-03 | 0.086000 |
| 82 | 2024-01-02 | 0.089000 |
| 83 | 2009-05-01 | 0.123000 |
| 84 | 2010-04-01 | 0.238000 |
| 85 | 2010-07-01 | 0.243000 |
| 86 | 2011-12-01 | 0.318000 |
| 87 | 2013-02-01 | 0.196000 |
| 88 | 2015-04-01 | 0.100000 |
| 89 | 2008-10-01 | 0.393000 |
| 90 | 2009-04-01 | 0.126000 |
| 91 | 2011-09-01 | 0.363000 |
| 92 | 2017-12-01 | 0.042000 |
| 93 | 2019-01-02 | 0.057000 |
| 94 | 2026-07-01 | 0.087000 |
| 95 | 2006-07-03 | 0.105000 |
| 96 | 2006-08-01 | 0.321000 |
| 97 | 2007-09-04 | 0.376000 |
| 98 | 2008-05-01 | 0.497000 |
| 99 | 2009-03-02 | 0.125000 |
| 100 | 2023-02-01 | 0.039000 |
| 101 | 2026-02-02 | 0.055000 |
| 102 | 2010-01-04 | 0.221000 |
| 103 | 2012-10-01 | 0.239000 |
| 104 | 2016-02-01 | 0.077000 |
| 105 | 2019-11-01 | 0.005000 |
| 106 | 2023-01-03 | 0.027000 |
| 107 | 2023-05-01 | 0.053000 |
| 108 | 2008-01-02 | 0.373000 |
| 109 | 2009-09-01 | 0.147000 |
| 110 | 2018-05-01 | 0.070000 |
| 111 | 2019-06-03 | 0.038000 |
| 112 | 2024-03-01 | 0.079000 |
| 113 | 2026-05-01 | 0.079000 |
| 114 | 2009-07-01 | 0.142000 |
| 115 | 2010-10-01 | 0.294000 |
| 116 | 2012-09-04 | 0.243000 |
| 117 | 2013-05-01 | 0.182000 |
| 118 | 2020-03-02 | 0.006000 |
| 119 | 2026-06-01 | 0.091000 |
| 120 | 2010-03-01 | 0.204000 |
| 121 | 2011-07-01 | 0.347000 |
| 122 | 2015-10-01 | 0.069000 |
| 123 | 2019-03-01 | 0.054000 |
| 124 | 2023-11-01 | 0.069000 |
| 125 | 2013-11-01 | 0.133000 |
| 126 | 2015-08-03 | 0.090000 |
| 127 | 2016-04-01 | 0.081000 |
| 128 | 2017-04-03 | 0.054000 |
| 129 | 2017-09-01 | 0.054000 |
| 130 | 2006-12-01 | 0.351000 |
| 131 | 2008-12-01 | 0.234000 |
| 132 | 2010-02-01 | 0.218000 |
| 133 | 2013-06-03 | 0.162000 |
| 134 | 2014-10-01 | 0.136000 |
| 135 | 2014-11-03 | 0.133000 |
| 136 | 2023-03-01 | 0.034000 |
| 137 | 2025-11-03 | 0.050000 |
| 138 | 2017-07-03 | 0.055000 |
| 139 | 2018-02-01 | 0.065000 |
| 140 | 2006-11-01 | 0.342000 |
| 141 | 2007-02-01 | 0.356000 |
| 142 | 2008-09-02 | 0.459000 |
| 143 | 2009-11-02 | 0.175000 |
| 144 | 2011-03-01 | 0.301000 |
| 145 | 2016-01-04 | 0.080000 |
| 146 | 2023-06-01 | 0.054000 |
| 147 | 2023-12-01 | 0.069000 |
| 148 | 2025-12-01 | 0.050000 |
| 149 | 2026-03-02 | 0.060000 |
| 150 | 2011-11-01 | 0.367000 |
| 151 | 2013-10-01 | 0.130000 |
| 152 | 2018-01-02 | 0.035000 |
| 153 | 2018-10-01 | 0.070000 |
| 154 | 2019-05-01 | 0.052000 |
| 155 | 2024-09-03 | 0.088000 |
| 156 | 2007-12-03 | 0.408000 |
| 157 | 2025-08-01 | 0.062000 |
| 158 | 2025-09-02 | 0.056000 |
| 159 | 2017-03-01 | 0.048000 |
| 160 | 2018-12-03 | 0.052000 |
| 161 | 2010-06-01 | 0.256000 |
| 162 | 2011-02-01 | 0.329000 |
| 163 | 2011-04-01 | 0.341000 |
| 164 | 2011-05-02 | 0.353000 |
| 165 | 2014-01-02 | 0.132000 |
| 166 | 2014-05-01 | 0.141000 |
| 167 | 2024-10-01 | 0.087000 |
| 168 | 2025-01-02 | 0.080000 |
| 169 | 2009-12-01 | 0.200000 |
| 170 | 2018-04-02 | 0.056000 |
| 171 | 2016-07-01 | 0.061000 |
| 172 | 2017-08-01 | 0.063000 |
| 173 | 2007-03-01 | 0.327000 |
| 174 | 2007-10-01 | 0.402000 |
| 175 | 2014-07-01 | 0.150000 |
| 176 | 2015-06-01 | 0.086000 |
| 177 | 2016-03-01 | 0.064000 |
| 178 | 2016-05-02 | 0.072000 |
| 179 | 2018-06-01 | 0.058000 |
| 180 | 2019-04-01 | 0.049000 |
| 181 | 2019-07-01 | 0.027000 |
| 182 | 2025-02-03 | 0.081000 |
| 183 | 2025-05-01 | 0.070000 |
| 184 | 2007-07-02 | 0.377000 |
| 185 | 2008-02-01 | 0.419000 |
| 186 | 2014-12-01 | 0.130000 |
| 187 | 2015-01-02 | 0.135000 |
| 188 | 2016-11-01 | 0.041000 |
| 189 | 2016-06-01 | 0.063000 |
| 190 | 2024-04-01 | 0.085000 |
| 191 | 2010-05-03 | 0.251000 |
| 192 | 2011-10-03 | 0.314000 |
| 193 | 2012-05-01 | 0.306000 |
| 194 | 2013-04-01 | 0.187000 |
| 195 | 2015-07-01 | 0.081000 |
| 196 | 2015-11-02 | 0.079000 |
| 197 | 2025-06-02 | 0.069000 |
| 198 | 2007-01-03 | 0.364000 |
| 199 | 2008-07-01 | 0.495000 |
| 200 | 2023-08-01 | 0.072000 |
| 201 | 2023-09-01 | 0.070000 |
| 202 | 2024-02-01 | 0.085000 |
| 203 | 2024-11-01 | 0.086000 |
| 204 | 2010-11-01 | 0.301000 |
| 205 | 2013-07-01 | 0.150000 |
| 206 | 2014-02-03 | 0.128000 |
| 207 | 2020-01-02 | 0.002000 |