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)
4.4 KiB
4.4 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 1984-03-01 | 0.099842 |
| 3 | 1989-12-04 | 0.187704 |
| 4 | 1982-06-03 | 0.084866 |
| 5 | 1985-12-02 | 0.115817 |
| 6 | 1992-03-03 | 0.219653 |
| 7 | 1995-06-30 | 0.327483 |
| 8 | 1997-12-29 | 0.479244 |
| 9 | 1999-07-06 | 0.559118 |
| 10 | 2004-06-24 | 0.958487 |
| 11 | 2007-09-20 | 1.341882 |
| 12 | 2001-12-27 | 0.862639 |
| 13 | 2024-09-26 | 0.280000 |
| 14 | 2016-12-22 | 1.150185 |
| 15 | 1974-06-06 | 0.039937 |
| 16 | 1975-12-02 | 0.039937 |
| 17 | 1980-12-02 | 0.074882 |
| 18 | 1986-06-02 | 0.115817 |
| 19 | 1990-02-28 | 0.187704 |
| 20 | 1971-06-17 | 0.034945 |
| 21 | 1971-09-21 | 0.034945 |
| 22 | 1974-12-03 | 0.039937 |
| 23 | 2001-07-05 | 0.766790 |
| 24 | 2025-07-07 | 0.360000 |
| 25 | 1979-09-18 | 0.069890 |
| 26 | 1987-12-01 | 0.139779 |
| 27 | 2003-09-25 | 0.910563 |
| 28 | 2022-03-07 | 0.049841 |
| 29 | 1986-09-23 | 0.115817 |
| 30 | 1993-06-02 | 0.251603 |
| 31 | 1994-12-23 | 0.327483 |
| 32 | 1976-03-03 | 0.039937 |
| 33 | 1978-11-30 | 0.064898 |
| 34 | 2020-06-26 | 0.049841 |
| 35 | 2026-03-09 | 0.470000 |
| 36 | 1981-06-04 | 0.079874 |
| 37 | 1997-09-26 | 0.415345 |
| 38 | 2016-02-25 | 1.102261 |
| 39 | 2019-03-08 | 0.049841 |
| 40 | 1971-03-03 | 0.032449 |
| 41 | 1980-02-29 | 0.069890 |
| 42 | 1993-12-27 | 0.287546 |
| 43 | 2004-09-23 | 0.958487 |
| 44 | 2021-09-24 | 0.049841 |
| 45 | 1983-03-02 | 0.084866 |
| 46 | 2005-02-24 | 1.054336 |
| 47 | 2013-09-19 | 0.910563 |
| 48 | 1971-12-02 | 0.034945 |
| 49 | 2006-06-22 | 1.198109 |
| 50 | 2021-06-25 | 0.049841 |
| 51 | 1972-06-08 | 0.034945 |
| 52 | 1988-03-02 | 0.139779 |
| 53 | 1998-12-29 | 0.559118 |
| 54 | 1999-03-04 | 0.559118 |
| 55 | 2005-12-22 | 1.198109 |
| 56 | 2012-09-20 | 0.814714 |
| 57 | 2017-12-26 | 0.575092 |
| 58 | 1972-09-19 | 0.034945 |
| 59 | 1993-09-20 | 0.251603 |
| 60 | 1976-06-10 | 0.039937 |
| 61 | 1986-02-28 | 0.115817 |
| 62 | 1996-07-01 | 0.367420 |
| 63 | 2011-02-24 | 0.670941 |
| 64 | 1983-06-09 | 0.094850 |
| 65 | 1988-12-02 | 0.139779 |
| 66 | 2020-12-18 | 0.049841 |
| 67 | 2023-03-06 | 0.063847 |
| 68 | 1975-02-28 | 0.039937 |
| 69 | 1975-06-05 | 0.039937 |
| 70 | 1995-03-01 | 0.327483 |
| 71 | 2010-06-17 | 0.479244 |
| 72 | 2010-12-22 | 0.670941 |
| 73 | 2019-12-20 | 0.049841 |
| 74 | 1974-09-17 | 0.039937 |
| 75 | 2002-02-27 | 0.862639 |
| 76 | 2012-06-21 | 0.814714 |
| 77 | 1976-09-14 | 0.044929 |
| 78 | 1982-09-28 | 0.084866 |
| 79 | 2000-09-29 | 0.656564 |
| 80 | 1973-06-07 | 0.034945 |
| 81 | 1990-09-20 | 0.187704 |
| 82 | 1992-12-01 | 0.251603 |
| 83 | 2013-02-21 | 0.910563 |
| 84 | 2019-09-13 | 0.049841 |
| 85 | 2023-12-27 | 0.063847 |
| 86 | 2025-12-29 | 0.360000 |
| 87 | 1970-03-03 | 0.032449 |
| 88 | 1990-05-31 | 0.187704 |
| 89 | 1993-03-03 | 0.251603 |
| 90 | 2010-09-16 | 0.575092 |
| 91 | 2012-12-20 | 0.910563 |
| 92 | 1976-12-15 | 0.044929 |
| 93 | 2000-03-06 | 0.654966 |
| 94 | 2002-09-25 | 0.862639 |
| 95 | 1977-11-30 | 0.054913 |
| 96 | 1996-12-27 | 0.415345 |
| 97 | 1999-12-22 | 0.654966 |
| 98 | 2008-12-24 | 1.485656 |
| 99 | 2014-09-18 | 1.054336 |
| 100 | 1973-08-16 | 0.039937 |
| 101 | 2008-09-18 | 1.485656 |
| 102 | 2021-03-05 | 0.049841 |
| 103 | 1970-12-07 | 0.032449 |
| 104 | 1984-09-25 | 0.099842 |
| 105 | 2009-02-19 | 1.485656 |
| 106 | 2011-06-16 | 0.718866 |
| 107 | 2018-06-15 | 0.575092 |
| 108 | 2020-03-06 | 0.049841 |
| 109 | 2023-07-10 | 0.063847 |
| 110 | 1970-09-21 | 0.032449 |
| 111 | 2023-09-25 | 0.063847 |
| 112 | 1979-11-30 | 0.069890 |
| 113 | 2011-09-15 | 0.718866 |
| 114 | 2012-02-23 | 0.814714 |
| 115 | 2013-12-19 | 1.054336 |
| 116 | 1977-09-20 | 0.054913 |
| 117 | 1979-05-31 | 0.069890 |
| 118 | 1983-11-30 | 0.099842 |
| 119 | 1987-09-23 | 0.131792 |
| 120 | 1989-09-21 | 0.163742 |
| 121 | 2016-06-16 | 1.102261 |
| 122 | 1973-02-28 | 0.034945 |
| 123 | 1974-02-28 | 0.039937 |
| 124 | 1989-03-01 | 0.163742 |
| 125 | 2007-02-22 | 1.341882 |
| 126 | 2022-06-27 | 0.049841 |
| 127 | 2004-12-22 | 1.054336 |
| 128 | 1978-01-03 | 0.054913 |
| 129 | 1994-03-02 | 0.287546 |
| 130 | 1978-06-01 | 0.064898 |
| 131 | 1992-06-02 | 0.219653 |
| 132 | 2009-09-17 | 0.479244 |
| 133 | 1994-06-28 | 0.287546 |
| 134 | 2001-03-05 | 0.766790 |
| 135 | 2006-02-23 | 1.198109 |
| 136 | 2015-06-18 | 1.102261 |
| 137 | 2024-07-11 | 0.280000 |
| 138 | 1983-09-27 | 0.094850 |
| 139 | 1984-06-01 | 0.099842 |
| 140 | 2015-12-17 | 1.102261 |
| 141 | 2024-04-12 | 0.280000 |
| 142 | 1981-12-01 | 0.079874 |
| 143 | 1982-11-30 | 0.084866 |
| 144 | 1989-06-06 | 0.163742 |
| 145 | 2007-06-21 | 1.341882 |
| 146 | 2014-02-20 | 1.054336 |
| 147 | 2017-06-15 | 1.150185 |
| 148 | 2020-09-25 | 0.049841 |
| 149 | 2024-12-27 | 0.280000 |
| 150 | 2025-03-10 | 0.360000 |
| 151 | 1980-05-30 | 0.074882 |
| 152 | 1981-09-15 | 0.079874 |
| 153 | 1990-12-03 | 0.203679 |
| 154 | 1991-09-20 | 0.203679 |
| 155 | 1995-09-27 | 0.327483 |
| 156 | 2008-06-19 | 1.485656 |
| 157 | 2005-09-22 | 1.054336 |
| 158 | 2010-02-25 | 0.479244 |
| 159 | 2015-09-17 | 1.102261 |
| 160 | 2019-06-28 | 0.049841 |
| 161 | 2002-06-26 | 0.862639 |
| 162 | 2016-09-15 | 1.102261 |
| 163 | 2018-02-23 | 0.575092 |
| 164 | 1985-09-24 | 0.109827 |
| 165 | 1991-02-28 | 0.203679 |
| 166 | 1997-03-04 | 0.415345 |
| 167 | 2022-09-26 | 0.049841 |
| 168 | 1973-11-30 | 0.039937 |
| 169 | 1991-12-03 | 0.219653 |
| 170 | 1988-06-07 | 0.139779 |
| 171 | 2018-09-14 | 0.575092 |
| 172 | 1991-05-31 | 0.203679 |
| 173 | 2003-02-26 | 0.910563 |
| 174 | 2009-12-23 | 0.479244 |
| 175 | 2022-12-14 | 0.049841 |
| 176 | 1988-09-21 | 0.139779 |
| 177 | 2001-09-26 | 0.766790 |
| 178 | 2014-06-19 | 1.054336 |
| 179 | 1984-11-30 | 0.109827 |
| 180 | 1985-05-31 | 0.109827 |
| 181 | 1992-09-21 | 0.235628 |
| 182 | 2006-09-21 | 1.198109 |
| 183 | 2009-06-18 | 0.479244 |
| 184 | 2021-12-20 | 0.049841 |
| 185 | 1972-11-30 | 0.034945 |
| 186 | 1975-09-16 | 0.039937 |
| 187 | 1987-03-02 | 0.125801 |
| 188 | 1998-03-05 | 0.479244 |
| 189 | 2007-12-20 | 1.485656 |
| 190 | 2013-06-20 | 0.910563 |
| 191 | 1977-06-02 | 0.054913 |
| 192 | 1978-09-12 | 0.064898 |
| 193 | 1995-12-27 | 0.367420 |
| 194 | 1997-07-02 | 0.415345 |
| 195 | 1980-09-16 | 0.074882 |
| 196 | 1986-12-02 | 0.125801 |
| 197 | 2003-06-26 | 0.910563 |
| 198 | 1977-03-03 | 0.044929 |
| 199 | 2014-12-18 | 1.102261 |
| 200 | 2015-02-19 | 1.102261 |
| 201 | 2025-09-29 | 0.360000 |
| 202 | 1994-09-26 | 0.287546 |
| 203 | 1996-03-04 | 0.367420 |
| 204 | 2012-06-15 | 0.263584 |
| 205 | 2026-07-06 | 0.470000 |
| 206 | 2003-12-29 | 0.958487 |
| 207 | 2005-06-23 | 1.054336 |
| 208 | 2017-02-23 | 1.150185 |
| 209 | 2018-12-19 | 0.047924 |
| 210 | 1972-03-01 | 0.034945 |
| 211 | 1996-09-26 | 0.367420 |
| 212 | 1999-09-28 | 0.559118 |
| 213 | 2004-02-26 | 0.958487 |
| 214 | 1998-07-06 | 0.479244 |
| 215 | 1998-09-28 | 0.479244 |
| 216 | 2002-12-27 | 0.910563 |
| 217 | 2017-09-15 | 1.150185 |
| 218 | 1982-03-03 | 0.079874 |
| 219 | 1987-06-08 | 0.131792 |
| 220 | 2000-07-05 | 0.656564 |
| 221 | 2006-12-21 | 1.341882 |
| 222 | 2008-02-21 | 1.485656 |
| 223 | 1979-02-28 | 0.064898 |
| 224 | 1981-03-02 | 0.074882 |
| 225 | 2011-12-22 | 0.814714 |
| 226 | 1970-06-11 | 0.032449 |
| 227 | 1985-02-28 | 0.109827 |
| 228 | 2000-12-27 | 0.766790 |