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)
4.3 KiB
4.3 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 2004-03-02 | 0.062500 |
| 3 | 2002-02-26 | 0.062500 |
| 4 | 2004-11-29 | 0.062500 |
| 5 | 1981-05-28 | 0.071476 |
| 6 | 1987-08-28 | 0.059563 |
| 7 | 1994-11-25 | 0.059563 |
| 8 | 1995-02-24 | 0.059563 |
| 9 | 2012-06-04 | 0.090000 |
| 10 | 2016-09-02 | 0.180000 |
| 11 | 1978-08-28 | 0.041694 |
| 12 | 2002-09-03 | 0.062500 |
| 13 | 2011-05-27 | 0.090000 |
| 14 | 2019-06-04 | 0.180000 |
| 15 | 2023-09-05 | 0.160000 |
| 16 | 1982-02-24 | 0.095301 |
| 17 | 2013-03-04 | 0.125000 |
| 18 | 1981-08-31 | 0.071476 |
| 19 | 2005-08-31 | 0.062500 |
| 20 | 1984-08-28 | 0.107214 |
| 21 | 1985-02-26 | 0.107214 |
| 22 | 1993-11-24 | 0.059563 |
| 23 | 2010-02-26 | 0.090000 |
| 24 | 2009-05-28 | 0.090000 |
| 25 | 2023-06-06 | 0.160000 |
| 26 | 1976-05-28 | 0.016678 |
| 27 | 1990-02-23 | 0.059563 |
| 28 | 1997-06-02 | 0.062500 |
| 29 | 2006-11-29 | 0.075000 |
| 30 | 1974-03-04 | 0.011913 |
| 31 | 1980-05-29 | 0.059563 |
| 32 | 2000-11-28 | 0.062500 |
| 33 | 1974-08-30 | 0.011913 |
| 34 | 1982-05-26 | 0.095301 |
| 35 | 2018-09-04 | 0.180000 |
| 36 | 2024-06-05 | 0.170000 |
| 37 | 2024-12-04 | 0.170000 |
| 38 | 2001-06-04 | 0.062500 |
| 39 | 2001-09-04 | 0.062500 |
| 40 | 1980-11-24 | 0.035738 |
| 41 | 1986-08-26 | 0.059563 |
| 42 | 1983-05-25 | 0.095301 |
| 43 | 2014-12-03 | 0.180000 |
| 44 | 2024-03-05 | 0.170000 |
| 45 | 1988-08-26 | 0.059563 |
| 46 | 2022-09-06 | 0.120000 |
| 47 | 1979-08-28 | 0.053607 |
| 48 | 1987-05-27 | 0.059563 |
| 49 | 1991-02-28 | 0.059563 |
| 50 | 2005-05-31 | 0.062500 |
| 51 | 1997-11-28 | 0.062500 |
| 52 | 1973-12-03 | 0.011118 |
| 53 | 1977-08-29 | 0.029782 |
| 54 | 2003-11-28 | 0.062500 |
| 55 | 2007-05-30 | 0.090000 |
| 56 | 2018-03-06 | 0.180000 |
| 57 | 1985-05-28 | 0.107214 |
| 58 | 1994-08-26 | 0.059563 |
| 59 | 1996-08-30 | 0.062500 |
| 60 | 2016-12-05 | 0.180000 |
| 61 | 2020-09-01 | 0.045000 |
| 62 | 1973-06-04 | 0.011118 |
| 63 | 1979-05-24 | 0.053607 |
| 64 | 1982-11-24 | 0.095301 |
| 65 | 1989-02-24 | 0.059563 |
| 66 | 2014-03-03 | 0.150000 |
| 67 | 1985-11-25 | 0.107214 |
| 68 | 1993-02-25 | 0.059563 |
| 69 | 2008-08-28 | 0.090000 |
| 70 | 2011-08-30 | 0.090000 |
| 71 | 2017-06-05 | 0.180000 |
| 72 | 1989-05-25 | 0.059563 |
| 73 | 2008-05-29 | 0.090000 |
| 74 | 1990-05-25 | 0.059563 |
| 75 | 1992-02-27 | 0.059563 |
| 76 | 2007-08-29 | 0.090000 |
| 77 | 2007-11-29 | 0.090000 |
| 78 | 1986-11-24 | 0.059563 |
| 79 | 1994-05-25 | 0.059563 |
| 80 | 1981-11-24 | 0.095301 |
| 81 | 2011-02-28 | 0.090000 |
| 82 | 2022-05-31 | 0.120000 |
| 83 | 1983-08-29 | 0.095301 |
| 84 | 1993-05-26 | 0.059563 |
| 85 | 2002-11-25 | 0.062500 |
| 86 | 2013-12-04 | 0.150000 |
| 87 | 1974-06-03 | 0.011913 |
| 88 | 1976-11-29 | 0.045268 |
| 89 | 1987-03-02 | 0.059563 |
| 90 | 2009-02-27 | 0.090000 |
| 91 | 1984-05-25 | 0.107214 |
| 92 | 2001-02-27 | 0.062500 |
| 93 | 2021-12-08 | 0.045000 |
| 94 | 2020-06-02 | 0.045000 |
| 95 | 1989-08-28 | 0.059563 |
| 96 | 1996-11-27 | 0.062500 |
| 97 | 2013-06-03 | 0.125000 |
| 98 | 2022-12-07 | 0.120000 |
| 99 | 1984-02-24 | 0.107214 |
| 100 | 1997-03-03 | 0.062500 |
| 101 | 2005-03-01 | 0.062500 |
| 102 | 2021-06-01 | 0.045000 |
| 103 | 2017-12-06 | 0.180000 |
| 104 | 1972-06-05 | 0.010443 |
| 105 | 1995-11-28 | 0.059563 |
| 106 | 2012-08-31 | 0.090000 |
| 107 | 2021-03-02 | 0.045000 |
| 108 | 1972-12-04 | 0.010443 |
| 109 | 1983-02-23 | 0.095301 |
| 110 | 2003-09-02 | 0.062500 |
| 111 | 2006-05-30 | 0.075000 |
| 112 | 1975-12-01 | 0.013104 |
| 113 | 1981-02-25 | 0.071476 |
| 114 | 1986-05-27 | 0.059563 |
| 115 | 2000-02-29 | 0.062500 |
| 116 | 1988-02-29 | 0.059563 |
| 117 | 2008-12-01 | 0.090000 |
| 118 | 2015-12-01 | 0.180000 |
| 119 | 1980-08-29 | 0.059563 |
| 120 | 2000-05-30 | 0.062500 |
| 121 | 2014-08-29 | 0.150000 |
| 122 | 1973-08-31 | 0.011118 |
| 123 | 1978-05-25 | 0.041694 |
| 124 | 2011-11-30 | 0.090000 |
| 125 | 2019-12-04 | 0.180000 |
| 126 | 1979-02-26 | 0.053607 |
| 127 | 2023-02-28 | 0.160000 |
| 128 | 1978-02-27 | 0.041694 |
| 129 | 2006-02-28 | 0.075000 |
| 130 | 1973-03-05 | 0.011118 |
| 131 | 1992-11-25 | 0.059563 |
| 132 | 1977-05-27 | 0.029782 |
| 133 | 1977-11-28 | 0.041694 |
| 134 | 1995-08-29 | 0.059563 |
| 135 | 2014-06-02 | 0.150000 |
| 136 | 1975-06-02 | 0.013104 |
| 137 | 1993-08-26 | 0.059563 |
| 138 | 1996-06-03 | 0.062500 |
| 139 | 2009-12-01 | 0.090000 |
| 140 | 2012-12-04 | 0.090000 |
| 141 | 2025-06-04 | 0.170000 |
| 142 | 1980-02-27 | 0.059563 |
| 143 | 1983-11-25 | 0.107214 |
| 144 | 1994-02-24 | 0.059563 |
| 145 | 1998-03-02 | 0.062500 |
| 146 | 2003-03-04 | 0.062500 |
| 147 | 1988-11-25 | 0.059563 |
| 148 | 2019-03-05 | 0.180000 |
| 149 | 2022-03-01 | 0.120000 |
| 150 | 2000-09-01 | 0.062500 |
| 151 | 2003-06-03 | 0.062500 |
| 152 | 1975-08-29 | 0.013104 |
| 153 | 1991-11-20 | 0.059563 |
| 154 | 2008-02-28 | 0.090000 |
| 155 | 2010-05-27 | 0.090000 |
| 156 | 2010-12-01 | 0.090000 |
| 157 | 1977-02-28 | 0.029782 |
| 158 | 1984-11-26 | 0.107214 |
| 159 | 1990-08-29 | 0.059563 |
| 160 | 1992-05-28 | 0.059563 |
| 161 | 2006-08-30 | 0.075000 |
| 162 | 2012-03-05 | 0.090000 |
| 163 | 1976-08-30 | 0.016678 |
| 164 | 1986-02-25 | 0.107214 |
| 165 | 1989-11-27 | 0.059563 |
| 166 | 1987-11-24 | 0.059563 |
| 167 | 1999-11-29 | 0.062500 |
| 168 | 2025-03-05 | 0.170000 |
| 169 | 1972-09-01 | 0.010443 |
| 170 | 1976-03-01 | 0.016678 |
| 171 | 1988-05-26 | 0.059563 |
| 172 | 1999-08-31 | 0.062500 |
| 173 | 2019-09-03 | 0.180000 |
| 174 | 1978-11-27 | 0.053607 |
| 175 | 2007-02-27 | 0.075000 |
| 176 | 2018-12-06 | 0.180000 |
| 177 | 2024-09-04 | 0.170000 |
| 178 | 2025-12-03 | 0.170000 |
| 179 | 1999-03-02 | 0.062500 |
| 180 | 2004-06-01 | 0.062500 |
| 181 | 1985-08-27 | 0.107214 |
| 182 | 1991-08-28 | 0.059563 |
| 183 | 1998-06-01 | 0.062500 |
| 184 | 1998-09-01 | 0.062500 |
| 185 | 1998-11-27 | 0.062500 |
| 186 | 1996-03-04 | 0.062500 |
| 187 | 2005-11-29 | 0.062500 |
| 188 | 2025-09-03 | 0.170000 |
| 189 | 2017-02-27 | 0.180000 |
| 190 | 2020-12-02 | 0.045000 |
| 191 | 1974-12-02 | 0.011913 |
| 192 | 1995-05-25 | 0.059563 |
| 193 | 1999-06-01 | 0.062500 |
| 194 | 2013-08-30 | 0.125000 |
| 195 | 2015-03-02 | 0.180000 |
| 196 | 2016-02-29 | 0.180000 |
| 197 | 2026-06-03 | 0.170000 |
| 198 | 1990-11-21 | 0.059563 |
| 199 | 1982-08-30 | 0.095301 |
| 200 | 2002-06-04 | 0.062500 |
| 201 | 2004-08-31 | 0.062500 |
| 202 | 2021-08-31 | 0.045000 |
| 203 | 1997-08-29 | 0.062500 |
| 204 | 2001-11-27 | 0.062500 |
| 205 | 2015-08-31 | 0.180000 |
| 206 | 2023-12-06 | 0.160000 |
| 207 | 2010-08-30 | 0.090000 |
| 208 | 1991-05-30 | 0.059563 |
| 209 | 2009-08-31 | 0.090000 |
| 210 | 2018-06-05 | 0.180000 |
| 211 | 1975-03-03 | 0.013104 |
| 212 | 2016-05-27 | 0.180000 |
| 213 | 1979-11-28 | 0.059563 |
| 214 | 1992-08-27 | 0.059563 |
| 215 | 2015-06-01 | 0.180000 |
| 216 | 2020-03-03 | 0.180000 |
| 217 | 2026-03-04 | 0.170000 |
| 218 | 2017-09-01 | 0.180000 |