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 | 2019-06-28 | 0.061000 |
| 3 | 2020-12-18 | 2.938000 |
| 4 | 2023-06-29 | 0.073000 |
| 5 | 2021-12-29 | 0.036000 |
| 6 | 2016-03-31 | 0.070000 |
| 7 | 2016-12-30 | 0.058000 |
| 8 | 2017-12-29 | 0.049000 |
| 9 | 2018-12-27 | 0.065000 |
| 10 | 2019-09-27 | 0.051000 |
| 11 | 2021-06-29 | 0.039000 |
| 12 | 2021-09-29 | 0.034000 |
| 13 | 2022-06-29 | 0.047000 |
| 14 | 2024-03-27 | 0.048000 |
| 15 | 2025-09-23 | 0.073000 |
| 16 | 2017-09-29 | 0.046000 |
| 17 | 2018-09-28 | 0.043000 |
| 18 | 2020-03-27 | 0.036000 |
| 19 | 2021-12-17 | 2.866000 |
| 20 | 2022-12-20 | 0.087000 |
| 21 | 2023-12-27 | 0.081000 |
| 22 | 2015-09-30 | 0.060000 |
| 23 | 2018-03-29 | 0.051000 |
| 24 | 2019-12-27 | 0.047000 |
| 25 | 2024-09-25 | 0.071000 |
| 26 | 2026-06-26 | 0.063000 |
| 27 | 2015-12-18 | 0.176000 |
| 28 | 2017-03-31 | 0.062000 |
| 29 | 2017-06-30 | 0.063000 |
| 30 | 2021-03-30 | 0.025000 |
| 31 | 2022-12-28 | 0.086000 |
| 32 | 2024-06-27 | 0.073000 |
| 33 | 2024-12-27 | 0.136000 |
| 34 | 2016-09-30 | 0.067000 |
| 35 | 2018-06-29 | 0.043000 |
| 36 | 2019-12-18 | 1.033000 |
| 37 | 2020-12-29 | 0.050000 |
| 38 | 2023-03-30 | 0.072000 |
| 39 | 2023-09-28 | 0.039000 |
| 40 | 2025-12-30 | 0.131000 |
| 41 | 2025-06-24 | 0.062000 |
| 42 | 2016-06-30 | 0.069000 |
| 43 | 2017-12-15 | 0.117000 |
| 44 | 2018-12-18 | 0.702000 |
| 45 | 2019-03-29 | 0.070000 |
| 46 | 2020-06-30 | 0.035000 |
| 47 | 2020-09-29 | 0.043000 |
| 48 | 2025-03-27 | 0.055000 |
| 49 | 2015-12-31 | 0.051000 |
| 50 | 2016-12-16 | 0.169000 |
| 51 | 2022-03-30 | 0.044000 |
| 52 | 2022-09-29 | 0.070000 |
| 53 | 2026-03-27 | 0.046000 |