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)
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| 1 | Date | Dividends |
|---|---|---|
| 2 | 2011-12-09 | 0.045000 |
| 3 | 2013-06-26 | 0.175000 |
| 4 | 2018-06-22 | 1.987000 |
| 5 | 2022-12-08 | 0.057000 |
| 6 | 2020-12-10 | 0.069000 |
| 7 | 2026-06-16 | 10.470000 |
| 8 | 1996-06-27 | 0.066000 |
| 9 | 1997-12-30 | 0.050000 |
| 10 | 2012-12-07 | 0.062000 |
| 11 | 2015-06-19 | 6.983000 |
| 12 | 2010-12-10 | 0.050000 |
| 13 | 2011-06-29 | 0.098000 |
| 14 | 2017-06-28 | 0.400000 |
| 15 | 2022-06-15 | 7.831000 |
| 16 | 1994-12-29 | 0.030000 |
| 17 | 1995-06-29 | 0.050000 |
| 18 | 1997-06-27 | 0.101000 |
| 19 | 2005-12-29 | 0.029000 |
| 20 | 2024-06-13 | 1.562000 |
| 21 | 2025-06-12 | 4.807000 |
| 22 | 1994-06-29 | 0.005000 |
| 23 | 2006-06-29 | 0.058000 |
| 24 | 2016-06-21 | 1.972000 |
| 25 | 2019-12-09 | 0.074000 |
| 26 | 2009-06-19 | 0.062000 |
| 27 | 2010-06-29 | 0.192000 |
| 28 | 2013-12-09 | 0.062000 |
| 29 | 2016-12-12 | 0.050000 |
| 30 | 1993-12-30 | 0.030000 |
| 31 | 1996-12-30 | 0.100000 |
| 32 | 2003-12-30 | 0.016000 |
| 33 | 2004-12-30 | 0.024000 |
| 34 | 2019-06-10 | 4.304000 |
| 35 | 2014-12-08 | 0.038000 |
| 36 | 2017-12-11 | 0.049000 |
| 37 | 2020-06-11 | 3.711000 |
| 38 | 2021-06-10 | 2.767000 |
| 39 | 1998-06-29 | 0.040000 |
| 40 | 2007-06-28 | 0.099000 |
| 41 | 2008-06-27 | 0.121000 |
| 42 | 2014-06-19 | 2.627000 |
| 43 | 2015-12-07 | 0.027000 |
| 44 | 2023-06-21 | 0.055000 |
| 45 | 1995-12-28 | 0.250000 |
| 46 | 2005-06-29 | 0.039000 |
| 47 | 2008-12-29 | 0.043000 |
| 48 | 2012-06-27 | 0.520000 |
| 49 | 2018-12-10 | 0.075000 |
| 50 | 2004-06-29 | 0.005000 |
| 51 | 2006-12-28 | 0.050000 |
| 52 | 2007-12-27 | 0.085000 |
| 53 | 2009-12-11 | 0.035000 |