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 | 2018-09-27 | 0.076000 |
| 3 | 2019-03-28 | 0.103000 |
| 4 | 2020-12-16 | 0.136000 |
| 5 | 2021-03-30 | 0.075000 |
| 6 | 2022-12-16 | 0.102000 |
| 7 | 2017-09-29 | 0.189000 |
| 8 | 2017-12-20 | 0.089000 |
| 9 | 2018-03-29 | 0.071000 |
| 10 | 2024-12-17 | 0.071000 |
| 11 | 2025-12-16 | 0.077000 |
| 12 | 2023-09-28 | 0.079000 |
| 13 | 2023-12-18 | 0.124000 |
| 14 | 2024-03-27 | 0.065000 |
| 15 | 2023-06-29 | 0.074000 |
| 16 | 2023-12-13 | 0.530000 |
| 17 | 2025-09-29 | 0.076000 |
| 18 | 2015-12-21 | 0.066000 |
| 19 | 2017-06-30 | 0.055000 |
| 20 | 2022-03-30 | 0.058000 |
| 21 | 2020-03-30 | 0.088000 |
| 22 | 2021-09-29 | 0.090000 |
| 23 | 2021-12-16 | 0.108000 |
| 24 | 2016-06-29 | 0.071000 |
| 25 | 2016-12-20 | 0.075000 |
| 26 | 2018-12-11 | 1.061000 |
| 27 | 2024-06-27 | 0.084000 |
| 28 | 2024-09-27 | 0.092000 |
| 29 | 2021-06-29 | 0.075000 |
| 30 | 2021-12-14 | 4.151000 |
| 31 | 2022-12-13 | 0.457000 |
| 32 | 2017-03-30 | 0.068000 |
| 33 | 2022-06-29 | 0.061000 |
| 34 | 2025-06-27 | 0.094000 |
| 35 | 2019-12-18 | 0.102000 |
| 36 | 2025-03-28 | 0.074000 |
| 37 | 2016-03-30 | 0.080000 |
| 38 | 2016-09-29 | 0.059000 |
| 39 | 2018-06-28 | 0.078000 |
| 40 | 2024-12-12 | 3.185000 |
| 41 | 2026-03-30 | 0.073000 |
| 42 | 2018-12-19 | 0.085000 |
| 43 | 2019-09-27 | 0.094000 |
| 44 | 2020-06-29 | 0.083000 |
| 45 | 2020-09-29 | 0.063000 |
| 46 | 2022-09-29 | 0.092000 |
| 47 | 2023-03-30 | 0.082000 |
| 48 | 2025-12-11 | 1.560000 |
| 49 | 2026-06-29 | 0.063000 |
| 50 | 2015-09-29 | 0.080000 |
| 51 | 2017-09-28 | 0.189000 |
| 52 | 2019-06-27 | 0.094000 |