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 | 2011-12-21 | 0.287200 |
| 3 | 2012-12-21 | 0.141000 |
| 4 | 2013-09-20 | 0.062100 |
| 5 | 2015-09-23 | 0.001159 |
| 6 | 2017-03-23 | 0.088500 |
| 7 | 2018-09-14 | 0.128400 |
| 8 | 2019-09-25 | 0.048600 |
| 9 | 2020-09-24 | 0.055000 |
| 10 | 2021-06-24 | 0.228300 |
| 11 | 2022-06-24 | 0.599000 |
| 12 | 2022-09-23 | 0.167300 |
| 13 | 2024-06-27 | 0.098100 |
| 14 | 2015-03-25 | 0.003473 |
| 15 | 2012-06-21 | 0.672200 |
| 16 | 2016-09-21 | 0.023500 |
| 17 | 2017-06-22 | 0.386300 |
| 18 | 2018-03-22 | 0.138600 |
| 19 | 2018-06-21 | 1.115000 |
| 20 | 2019-12-13 | 1.307600 |
| 21 | 2020-06-25 | 0.120800 |
| 22 | 2021-03-25 | 0.069500 |
| 23 | 2022-03-25 | 0.172600 |
| 24 | 2023-06-27 | 0.104641 |
| 25 | 2023-09-22 | 0.028524 |
| 26 | 2024-09-26 | 0.136000 |
| 27 | 2025-03-27 | 0.052100 |
| 28 | 2013-12-18 | 0.066000 |
| 29 | 2014-06-24 | 0.473700 |
| 30 | 2016-03-23 | 0.011300 |
| 31 | 2022-12-23 | 0.101800 |
| 32 | 2024-03-21 | 0.059900 |
| 33 | 2024-12-13 | 0.134000 |
| 34 | 2012-09-21 | 0.105400 |
| 35 | 2013-06-21 | 0.324500 |
| 36 | 2014-12-23 | 0.072700 |
| 37 | 2019-03-21 | 0.065100 |
| 38 | 2019-06-14 | 0.144900 |
| 39 | 2014-03-25 | 0.092200 |
| 40 | 2014-09-23 | 0.101500 |
| 41 | 2016-12-21 | 0.051600 |
| 42 | 2018-12-18 | 0.058300 |
| 43 | 2021-09-23 | 0.207500 |
| 44 | 2015-06-24 | 0.007768 |
| 45 | 2016-06-22 | 0.146700 |
| 46 | 2020-03-26 | 0.168100 |
| 47 | 2023-03-24 | 0.185046 |
| 48 | 2025-06-26 | 0.135500 |
| 49 | 2013-03-21 | 0.076200 |
| 50 | 2017-09-21 | 0.653900 |
| 51 | 2017-12-21 | 0.173300 |
| 52 | 2021-12-23 | 0.271600 |