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 | 1986-03-10 | 0.016250 |
| 3 | 1996-09-11 | 0.062500 |
| 4 | 2009-11-27 | 0.205000 |
| 5 | 1998-11-27 | 0.075000 |
| 6 | 2004-09-13 | 0.125000 |
| 7 | 2013-03-13 | 0.280000 |
| 8 | 2021-03-12 | 0.420000 |
| 9 | 1973-03-12 | 0.004427 |
| 10 | 2000-09-13 | 0.085000 |
| 11 | 2003-09-11 | 0.110000 |
| 12 | 2024-03-14 | 0.485000 |
| 13 | 1987-11-24 | 0.017500 |
| 14 | 1990-09-10 | 0.025000 |
| 15 | 2012-06-13 | 0.255000 |
| 16 | 1992-09-09 | 0.035000 |
| 17 | 2010-09-13 | 0.220000 |
| 18 | 1988-06-09 | 0.018750 |
| 19 | 1991-09-09 | 0.030000 |
| 20 | 1996-11-26 | 0.062500 |
| 21 | 2003-03-12 | 0.110000 |
| 22 | 2007-06-13 | 0.170000 |
| 23 | 1970-06-08 | 0.003750 |
| 24 | 1983-03-09 | 0.013958 |
| 25 | 2021-11-30 | 0.420000 |
| 26 | 2004-11-29 | 0.125000 |
| 27 | 2011-03-11 | 0.235000 |
| 28 | 2020-03-13 | 0.410000 |
| 29 | 2022-11-30 | 0.440000 |
| 30 | 1975-06-09 | 0.005990 |
| 31 | 1975-09-10 | 0.005990 |
| 32 | 2002-11-26 | 0.100000 |
| 33 | 2008-11-26 | 0.190000 |
| 34 | 1976-06-08 | 0.006896 |
| 35 | 1979-09-10 | 0.010208 |
| 36 | 1996-03-13 | 0.062500 |
| 37 | 2018-03-14 | 0.390000 |
| 38 | 2009-06-11 | 0.205000 |
| 39 | 2010-03-11 | 0.220000 |
| 40 | 1974-06-10 | 0.005292 |
| 41 | 1982-05-24 | 0.012917 |
| 42 | 1995-03-09 | 0.055000 |
| 43 | 1991-11-22 | 0.030000 |
| 44 | 1975-03-11 | 0.005990 |
| 45 | 1994-11-25 | 0.048750 |
| 46 | 2018-09-13 | 0.390000 |
| 47 | 2025-09-15 | 0.510000 |
| 48 | 2008-06-11 | 0.190000 |
| 49 | 1984-03-09 | 0.014375 |
| 50 | 1985-06-11 | 0.015417 |
| 51 | 1989-03-09 | 0.021250 |
| 52 | 1993-09-09 | 0.042500 |
| 53 | 2024-11-29 | 0.485000 |
| 54 | 1974-09-10 | 0.005552 |
| 55 | 2001-09-17 | 0.090000 |
| 56 | 2002-09-11 | 0.100000 |
| 57 | 2014-09-11 | 0.305000 |
| 58 | 2024-06-14 | 0.485000 |
| 59 | 1990-03-09 | 0.025000 |
| 60 | 1990-11-26 | 0.025000 |
| 61 | 1984-06-11 | 0.014375 |
| 62 | 1970-09-10 | 0.003750 |
| 63 | 1971-06-08 | 0.004115 |
| 64 | 1979-06-12 | 0.010208 |
| 65 | 2000-03-13 | 0.085000 |
| 66 | 2006-06-13 | 0.155000 |
| 67 | 2004-06-14 | 0.125000 |
| 68 | 1971-03-08 | 0.004115 |
| 69 | 1974-11-25 | 0.005552 |
| 70 | 1983-11-25 | 0.013958 |
| 71 | 2005-06-13 | 0.140000 |
| 72 | 1971-09-10 | 0.004115 |
| 73 | 1979-11-26 | 0.010208 |
| 74 | 1988-09-09 | 0.018750 |
| 75 | 1993-11-24 | 0.042500 |
| 76 | 2009-03-11 | 0.205000 |
| 77 | 2020-09-14 | 0.410000 |
| 78 | 1974-03-08 | 0.005292 |
| 79 | 1997-06-11 | 0.070000 |
| 80 | 2003-06-11 | 0.110000 |
| 81 | 2008-03-12 | 0.190000 |
| 82 | 2014-03-12 | 0.305000 |
| 83 | 2015-06-11 | 0.330000 |
| 84 | 1972-06-08 | 0.004271 |
| 85 | 2002-03-13 | 0.100000 |
| 86 | 2018-11-29 | 0.390000 |
| 87 | 2022-09-15 | 0.440000 |
| 88 | 1972-03-10 | 0.004271 |
| 89 | 1972-11-27 | 0.004271 |
| 90 | 1992-06-09 | 0.035000 |
| 91 | 1978-03-10 | 0.009063 |
| 92 | 1980-03-11 | 0.011250 |
| 93 | 1997-03-12 | 0.070000 |
| 94 | 2013-09-12 | 0.280000 |
| 95 | 2017-06-13 | 0.370000 |
| 96 | 2000-11-29 | 0.085000 |
| 97 | 2017-11-30 | 0.370000 |
| 98 | 2019-11-29 | 0.400000 |
| 99 | 2026-03-13 | 0.530000 |
| 100 | 2026-06-15 | 0.530000 |
| 101 | 1989-06-09 | 0.021250 |
| 102 | 1994-06-09 | 0.048750 |
| 103 | 2001-11-28 | 0.090000 |
| 104 | 2005-09-13 | 0.140000 |
| 105 | 2019-06-13 | 0.400000 |
| 106 | 2025-12-01 | 0.510000 |
| 107 | 1982-09-09 | 0.012917 |
| 108 | 1994-09-09 | 0.048750 |
| 109 | 2009-09-11 | 0.205000 |
| 110 | 2024-09-13 | 0.485000 |
| 111 | 1984-09-10 | 0.014375 |
| 112 | 1999-06-11 | 0.080000 |
| 113 | 2001-09-12 | 0.180000 |
| 114 | 1994-03-09 | 0.048750 |
| 115 | 1997-09-11 | 0.070000 |
| 116 | 2021-09-14 | 0.420000 |
| 117 | 1976-11-24 | 0.006896 |
| 118 | 1980-11-24 | 0.011250 |
| 119 | 1983-06-09 | 0.013958 |
| 120 | 1999-09-13 | 0.080000 |
| 121 | 2001-06-13 | 0.090000 |
| 122 | 1978-06-12 | 0.009063 |
| 123 | 1980-06-09 | 0.011250 |
| 124 | 2015-03-12 | 0.330000 |
| 125 | 2021-06-14 | 0.420000 |
| 126 | 1973-09-10 | 0.004948 |
| 127 | 1985-09-10 | 0.015417 |
| 128 | 1993-06-09 | 0.042500 |
| 129 | 1997-11-26 | 0.070000 |
| 130 | 2008-09-11 | 0.190000 |
| 131 | 1977-11-25 | 0.008021 |
| 132 | 1992-03-09 | 0.035000 |
| 133 | 2012-03-13 | 0.255000 |
| 134 | 2023-06-15 | 0.460000 |
| 135 | 1986-06-10 | 0.016250 |
| 136 | 1998-09-11 | 0.075000 |
| 137 | 2006-11-29 | 0.155000 |
| 138 | 2013-11-27 | 0.280000 |
| 139 | 2023-03-16 | 0.460000 |
| 140 | 1981-03-10 | 0.012083 |
| 141 | 1982-03-09 | 0.012917 |
| 142 | 1988-03-09 | 0.018750 |
| 143 | 1998-06-11 | 0.075000 |
| 144 | 2011-09-13 | 0.235000 |
| 145 | 2019-03-14 | 0.400000 |
| 146 | 2014-06-12 | 0.305000 |
| 147 | 1975-11-24 | 0.005990 |
| 148 | 1981-06-09 | 0.012083 |
| 149 | 1982-11-24 | 0.012917 |
| 150 | 1991-03-11 | 0.030000 |
| 151 | 2017-03-13 | 0.370000 |
| 152 | 2005-03-11 | 0.140000 |
| 153 | 2025-06-13 | 0.510000 |
| 154 | 1988-11-25 | 0.018750 |
| 155 | 1990-06-11 | 0.025000 |
| 156 | 1995-09-13 | 0.055000 |
| 157 | 2013-06-12 | 0.280000 |
| 158 | 2023-09-14 | 0.460000 |
| 159 | 1979-03-13 | 0.010208 |
| 160 | 1987-03-10 | 0.017500 |
| 161 | 1987-09-09 | 0.017500 |
| 162 | 2006-03-13 | 0.155000 |
| 163 | 2007-09-12 | 0.170000 |
| 164 | 2010-11-29 | 0.220000 |
| 165 | 1973-06-08 | 0.004427 |
| 166 | 1991-06-10 | 0.030000 |
| 167 | 2014-11-26 | 0.305000 |
| 168 | 2020-11-30 | 0.410000 |
| 169 | 1971-11-24 | 0.004115 |
| 170 | 1987-06-09 | 0.017500 |
| 171 | 2012-09-12 | 0.255000 |
| 172 | 2012-11-28 | 0.255000 |
| 173 | 1976-03-11 | 0.006896 |
| 174 | 1999-11-29 | 0.080000 |
| 175 | 2011-06-13 | 0.235000 |
| 176 | 2025-03-14 | 0.510000 |
| 177 | 2016-11-29 | 0.350000 |
| 178 | 2022-06-14 | 0.440000 |
| 179 | 1978-09-08 | 0.009063 |
| 180 | 1978-11-27 | 0.009063 |
| 181 | 1995-11-29 | 0.055000 |
| 182 | 1998-03-11 | 0.075000 |
| 183 | 2003-11-26 | 0.110000 |
| 184 | 2010-06-11 | 0.220000 |
| 185 | 1977-09-12 | 0.008021 |
| 186 | 1980-09-10 | 0.011250 |
| 187 | 1983-09-12 | 0.013958 |
| 188 | 1985-03-11 | 0.015417 |
| 189 | 2015-11-27 | 0.330000 |
| 190 | 1981-09-09 | 0.012083 |
| 191 | 1973-11-26 | 0.004948 |
| 192 | 1977-03-10 | 0.008021 |
| 193 | 1977-06-10 | 0.008021 |
| 194 | 1985-11-25 | 0.015417 |
| 195 | 1976-09-10 | 0.006896 |
| 196 | 1981-11-24 | 0.012083 |
| 197 | 1996-06-12 | 0.062500 |
| 198 | 2019-09-13 | 0.400000 |
| 199 | 2000-06-13 | 0.085000 |
| 200 | 2001-03-13 | 0.090000 |
| 201 | 2005-11-29 | 0.140000 |
| 202 | 1999-03-11 | 0.080000 |
| 203 | 1970-11-24 | 0.003750 |
| 204 | 1972-09-08 | 0.004271 |
| 205 | 1992-11-24 | 0.035000 |
| 206 | 2011-11-29 | 0.235000 |
| 207 | 2017-09-14 | 0.370000 |
| 208 | 1984-11-27 | 0.014375 |
| 209 | 2016-03-11 | 0.350000 |
| 210 | 2022-03-14 | 0.440000 |
| 211 | 1986-09-09 | 0.016250 |
| 212 | 1986-11-24 | 0.016250 |
| 213 | 2016-06-13 | 0.350000 |
| 214 | 2020-06-12 | 0.410000 |
| 215 | 2002-06-12 | 0.100000 |
| 216 | 2007-03-13 | 0.170000 |
| 217 | 2016-09-13 | 0.350000 |
| 218 | 2006-09-13 | 0.155000 |
| 219 | 2018-06-14 | 0.390000 |
| 220 | 2023-11-30 | 0.460000 |
| 221 | 1995-06-13 | 0.055000 |
| 222 | 1989-09-11 | 0.021250 |
| 223 | 1989-11-27 | 0.021250 |
| 224 | 1993-03-09 | 0.042500 |
| 225 | 2004-03-11 | 0.125000 |
| 226 | 2007-11-28 | 0.170000 |
| 227 | 2015-09-11 | 0.330000 |