f/overrides/event-backup/ibd-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
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)
2026-08-31 21:59:25 -04:00

110 lines
2.1 KiB
Plaintext

Date,Dividends
2018-05-29,0.043000
2018-10-26,0.049000
2019-10-28,0.054000
2022-03-25,0.022000
2023-02-24,0.055000
2023-06-23,0.058000
2017-11-16,0.039000
2019-01-29,0.042000
2020-07-27,0.026000
2021-07-27,0.023000
2019-08-29,0.056000
2021-01-29,0.040000
2026-04-24,0.079000
2022-10-28,0.054000
2023-05-26,0.066000
2026-06-26,0.096000
2019-04-26,0.052000
2020-09-25,0.030000
2018-04-27,0.034000
2025-07-25,0.081000
2023-09-22,0.062000
2021-10-28,0.018000
2023-08-25,0.064000
2025-10-28,0.082000
2023-07-27,0.074000
2020-10-28,0.028000
2022-05-27,0.025000
2024-05-24,0.075000
2021-04-27,0.025000
2022-08-26,0.030000
2019-02-26,0.052000
2020-03-27,0.045000
2025-04-25,0.080000
2022-06-24,0.024000
2021-03-26,0.019000
2021-06-25,0.023000
2019-09-26,0.050000
2019-11-27,0.043000
2020-05-27,0.036000
2018-06-27,0.045000
2024-12-16,0.118000
2026-07-24,0.076000
2017-09-18,0.029000
2021-08-27,0.025000
2021-12-14,0.094000
2022-07-27,0.030000
2020-04-27,0.042000
2025-12-17,0.121000
2017-08-16,0.041000
2018-03-28,0.032000
2025-05-23,0.081000
2026-03-27,0.093000
2022-09-23,0.028000
2023-10-27,0.088000
2025-02-24,0.073000
2026-02-24,0.078000
2021-11-24,0.018000
2022-01-27,0.016000
2024-01-26,0.056000
2026-05-22,0.078000
2024-11-22,0.075000
2017-10-16,0.035000
2024-10-28,0.084000
2020-02-26,0.050000
2020-06-26,0.042000
2020-08-27,0.033000
2022-02-24,0.021000
2018-01-29,0.027000
2018-02-26,0.032000
2019-07-26,0.053000
2023-11-21,0.065000
2025-09-26,0.090000
2022-12-14,0.080000
2023-01-27,0.044000
2023-04-27,0.065000
2019-12-13,0.116000
2023-12-14,0.115000
2024-02-23,0.071000
2025-11-21,0.073000
2018-09-26,0.034000
2022-11-23,0.047000
2021-09-24,0.019000
2022-04-27,0.026000
2025-08-26,0.083000
2018-12-14,0.064000
2019-03-28,0.052000
2019-05-29,0.054000
2020-11-25,0.024000
2024-04-26,0.072000
2025-01-27,0.060000
2017-12-15,0.063000
2019-06-27,0.052000
2018-11-28,0.056000
2020-12-14,0.033000
2023-03-27,0.045000
2024-06-25,0.081000
2025-03-27,0.092000
2026-01-27,0.059000
2018-08-29,0.048000
2024-09-25,0.093000
2025-06-26,0.095000
2021-05-27,0.026000
2024-07-26,0.098000
2024-08-26,0.072000
2020-01-29,0.044000
2021-02-26,0.020000
2024-03-27,0.085000
2018-07-27,0.040000