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)
4.2 KiB
4.2 KiB
| 1 | Date | Dividends |
|---|---|---|
| 2 | 1974-10-31 | 0.021693 |
| 3 | 2014-07-31 | 0.490000 |
| 4 | 1992-11-03 | 0.059654 |
| 5 | 2019-08-01 | 0.710000 |
| 6 | 1975-05-02 | 0.021693 |
| 7 | 2007-02-01 | 0.215000 |
| 8 | 2007-05-03 | 0.215000 |
| 9 | 1972-11-01 | 0.019282 |
| 10 | 2022-03-10 | 0.810000 |
| 11 | 1980-02-04 | 0.031093 |
| 12 | 2006-02-02 | 0.175000 |
| 13 | 2015-11-05 | 0.550000 |
| 14 | 2021-11-10 | 0.760000 |
| 15 | 2024-03-08 | 0.940000 |
| 16 | 1988-02-02 | 0.036154 |
| 17 | 1995-08-03 | 0.086770 |
| 18 | 1996-02-01 | 0.086770 |
| 19 | 1978-08-02 | 0.027092 |
| 20 | 1982-02-02 | 0.031093 |
| 21 | 1985-07-30 | 0.025308 |
| 22 | 2013-10-31 | 0.420000 |
| 23 | 2018-03-09 | 0.660000 |
| 24 | 2001-08-02 | 0.110000 |
| 25 | 2004-11-04 | 0.135000 |
| 26 | 2011-11-03 | 0.340000 |
| 27 | 2013-08-01 | 0.420000 |
| 28 | 2021-08-12 | 0.760000 |
| 29 | 2014-11-12 | 0.490000 |
| 30 | 1983-02-01 | 0.014462 |
| 31 | 1987-04-28 | 0.036154 |
| 32 | 2002-08-01 | 0.110000 |
| 33 | 2023-05-05 | 0.860000 |
| 34 | 2025-05-05 | 1.040000 |
| 35 | 1983-05-03 | 0.014462 |
| 36 | 1994-11-01 | 0.065078 |
| 37 | 2015-03-05 | 0.550000 |
| 38 | 2001-01-02 | 2.616000 |
| 39 | 2003-01-30 | 0.110000 |
| 40 | 2011-02-03 | 0.340000 |
| 41 | 2013-03-07 | 0.420000 |
| 42 | 1981-08-03 | 0.031093 |
| 43 | 1990-10-30 | 0.059654 |
| 44 | 2010-08-05 | 0.290000 |
| 45 | 2016-03-03 | 0.570000 |
| 46 | 2020-03-12 | 0.730000 |
| 47 | 1979-11-02 | 0.031093 |
| 48 | 1997-10-30 | 0.095447 |
| 49 | 2002-01-31 | 0.110000 |
| 50 | 2004-08-05 | 0.135000 |
| 51 | 1992-04-28 | 0.059654 |
| 52 | 1997-05-01 | 0.095447 |
| 53 | 2002-05-02 | 0.110000 |
| 54 | 1974-05-02 | 0.021693 |
| 55 | 2009-02-05 | 0.250000 |
| 56 | 2023-11-03 | 0.860000 |
| 57 | 2006-08-03 | 0.195000 |
| 58 | 1975-01-31 | 0.021693 |
| 59 | 1997-01-30 | 0.086770 |
| 60 | 1995-05-02 | 0.086770 |
| 61 | 1996-05-02 | 0.086770 |
| 62 | 1998-07-30 | 0.095447 |
| 63 | 2001-05-03 | 0.110000 |
| 64 | 1987-02-03 | 0.028923 |
| 65 | 1981-11-02 | 0.031093 |
| 66 | 1986-04-29 | 0.028923 |
| 67 | 2016-11-03 | 0.570000 |
| 68 | 1997-07-31 | 0.095447 |
| 69 | 2024-08-05 | 0.940000 |
| 70 | 1984-01-31 | 0.014462 |
| 71 | 1990-05-01 | 0.054231 |
| 72 | 2005-08-04 | 0.155000 |
| 73 | 1978-02-02 | 0.027092 |
| 74 | 1979-02-02 | 0.027092 |
| 75 | 2012-08-02 | 0.380000 |
| 76 | 2017-05-03 | 0.600000 |
| 77 | 2017-08-02 | 0.600000 |
| 78 | 1984-07-31 | 0.021693 |
| 79 | 2024-11-04 | 0.940000 |
| 80 | 1989-01-31 | 0.054231 |
| 81 | 2012-02-02 | 0.380000 |
| 82 | 2024-05-03 | 0.940000 |
| 83 | 1975-08-01 | 0.021693 |
| 84 | 1977-05-03 | 0.024103 |
| 85 | 2005-02-03 | 0.155000 |
| 86 | 2023-03-03 | 0.860000 |
| 87 | 2006-05-04 | 0.175000 |
| 88 | 2008-10-30 | 0.250000 |
| 89 | 2025-08-07 | 1.040000 |
| 90 | 1979-05-02 | 0.027092 |
| 91 | 1995-01-31 | 0.065078 |
| 92 | 2000-08-03 | 0.095447 |
| 93 | 1996-08-01 | 0.086770 |
| 94 | 1981-05-04 | 0.031093 |
| 95 | 1994-05-03 | 0.065078 |
| 96 | 2011-05-05 | 0.340000 |
| 97 | 1990-07-31 | 0.059654 |
| 98 | 1993-02-02 | 0.059654 |
| 99 | 2015-04-30 | 0.550000 |
| 100 | 1985-01-29 | 0.021693 |
| 101 | 1988-05-03 | 0.036154 |
| 102 | 2008-05-01 | 0.250000 |
| 103 | 1983-11-01 | 0.014462 |
| 104 | 2005-11-03 | 0.155000 |
| 105 | 2006-11-02 | 0.195000 |
| 106 | 1991-07-30 | 0.059654 |
| 107 | 1974-08-02 | 0.021693 |
| 108 | 1975-10-31 | 0.021693 |
| 109 | 1978-05-03 | 0.027092 |
| 110 | 2021-05-13 | 0.760000 |
| 111 | 1973-11-01 | 0.021693 |
| 112 | 2008-01-31 | 0.250000 |
| 113 | 2014-03-06 | 0.490000 |
| 114 | 1992-01-28 | 0.059654 |
| 115 | 2003-07-31 | 0.120000 |
| 116 | 1976-02-03 | 0.021693 |
| 117 | 1977-08-02 | 0.024103 |
| 118 | 1985-04-30 | 0.025308 |
| 119 | 1988-11-01 | 0.054231 |
| 120 | 2019-03-07 | 0.710000 |
| 121 | 2003-10-30 | 0.120000 |
| 122 | 2007-11-01 | 0.215000 |
| 123 | 2023-08-04 | 0.860000 |
| 124 | 1990-01-30 | 0.054231 |
| 125 | 1992-07-28 | 0.059654 |
| 126 | 1993-05-04 | 0.003688 |
| 127 | 1991-10-29 | 0.059654 |
| 128 | 2000-11-02 | 0.095447 |
| 129 | 2012-05-03 | 0.380000 |
| 130 | 1993-08-03 | 0.065078 |
| 131 | 1972-08-01 | 0.016872 |
| 132 | 1980-08-04 | 0.031093 |
| 133 | 1986-10-28 | 0.028923 |
| 134 | 1987-11-03 | 0.036154 |
| 135 | 1989-10-31 | 0.054231 |
| 136 | 2010-11-04 | 0.290000 |
| 137 | 1977-02-02 | 0.024103 |
| 138 | 1984-05-01 | 0.021693 |
| 139 | 2001-11-01 | 0.110000 |
| 140 | 1974-01-31 | 0.021693 |
| 141 | 2003-05-01 | 0.110000 |
| 142 | 2026-03-10 | 1.100000 |
| 143 | 2022-05-12 | 0.810000 |
| 144 | 1978-11-01 | 0.027092 |
| 145 | 1981-02-03 | 0.031093 |
| 146 | 2002-10-31 | 0.110000 |
| 147 | 1984-10-30 | 0.021693 |
| 148 | 2000-05-04 | 0.095447 |
| 149 | 2018-05-03 | 0.660000 |
| 150 | 1986-07-29 | 0.028923 |
| 151 | 1994-02-01 | 0.065078 |
| 152 | 1998-02-05 | 0.095447 |
| 153 | 1976-08-03 | 0.021693 |
| 154 | 1985-10-29 | 0.025308 |
| 155 | 1988-08-11 | 0.054231 |
| 156 | 1999-08-05 | 0.095447 |
| 157 | 2000-02-03 | 0.095447 |
| 158 | 1976-11-03 | 0.024103 |
| 159 | 1987-07-28 | 0.036154 |
| 160 | 2015-07-30 | 0.550000 |
| 161 | 2017-11-02 | 0.600000 |
| 162 | 1989-08-01 | 0.054231 |
| 163 | 1999-02-04 | 0.095447 |
| 164 | 1973-01-31 | 0.018077 |
| 165 | 1973-08-02 | 0.021693 |
| 166 | 2013-05-02 | 0.420000 |
| 167 | 2014-05-01 | 0.490000 |
| 168 | 2019-10-31 | 0.710000 |
| 169 | 2020-08-13 | 0.730000 |
| 170 | 2016-08-03 | 0.570000 |
| 171 | 1999-11-04 | 0.095447 |
| 172 | 2005-05-05 | 0.155000 |
| 173 | 1982-05-04 | 0.031093 |
| 174 | 2010-02-04 | 0.250000 |
| 175 | 2025-11-05 | 1.040000 |
| 176 | 1982-11-01 | 0.031093 |
| 177 | 1983-08-02 | 0.014462 |
| 178 | 1998-11-05 | 0.095447 |
| 179 | 2001-02-01 | 0.110000 |
| 180 | 2004-02-05 | 0.135000 |
| 181 | 1977-11-01 | 0.024103 |
| 182 | 1980-05-02 | 0.031093 |
| 183 | 1999-05-06 | 0.095447 |
| 184 | 2017-03-02 | 0.600000 |
| 185 | 2020-11-05 | 0.730000 |
| 186 | 2020-05-13 | 0.073000 |
| 187 | 2022-08-11 | 0.810000 |
| 188 | 2026-08-07 | 1.100000 |
| 189 | 1989-05-02 | 0.054231 |
| 190 | 2009-04-30 | 0.250000 |
| 191 | 2019-05-02 | 0.710000 |
| 192 | 2007-08-02 | 0.215000 |
| 193 | 2009-11-05 | 0.250000 |
| 194 | 2022-11-09 | 0.810000 |
| 195 | 1998-04-30 | 0.095447 |
| 196 | 2012-10-04 | 0.380000 |
| 197 | 2025-03-10 | 1.040000 |
| 198 | 1986-01-28 | 0.028923 |
| 199 | 1991-01-29 | 0.059654 |
| 200 | 2011-08-04 | 0.340000 |
| 201 | 1994-08-02 | 0.065078 |
| 202 | 2010-05-06 | 0.250000 |
| 203 | 1982-08-03 | 0.031093 |
| 204 | 2016-05-04 | 0.570000 |
| 205 | 1973-05-02 | 0.018077 |
| 206 | 1996-10-31 | 0.086770 |
| 207 | 1991-04-30 | 0.059654 |
| 208 | 1995-11-02 | 0.086770 |
| 209 | 2004-05-06 | 0.135000 |
| 210 | 2008-07-31 | 0.250000 |
| 211 | 2009-07-30 | 0.250000 |
| 212 | 1976-05-03 | 0.021693 |
| 213 | 1979-08-02 | 0.031093 |
| 214 | 1980-10-31 | 0.031093 |
| 215 | 2021-03-15 | 0.760000 |
| 216 | 1993-11-02 | 0.065078 |
| 217 | 2026-05-08 | 1.100000 |