f/overrides/event-backup/clmax-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

148 lines
2.9 KiB
Plaintext

Date,Dividends
2017-10-25,0.031000
2017-11-21,0.030000
2021-07-26,0.030000
2023-05-24,0.041000
2023-10-25,0.045000
2014-06-25,0.009000
2015-10-23,0.029000
2023-11-22,0.045000
2018-11-26,0.033000
2021-03-25,0.025000
2025-03-25,0.041000
2023-09-25,0.045000
2024-11-21,0.033000
2016-12-15,0.170000
2017-09-25,0.031000
2017-12-14,0.402000
2018-07-25,0.028000
2021-08-25,0.031000
2022-06-24,0.037000
2018-12-13,0.107000
2021-04-26,0.026000
2023-02-22,0.042000
2023-06-26,0.043000
2023-12-20,0.041000
2025-05-23,0.036000
2015-07-24,0.033000
2015-08-25,0.032000
2020-04-24,0.025000
2016-07-25,0.028000
2017-04-25,0.028000
2019-12-17,0.110000
2021-01-25,0.034000
2022-07-25,0.041000
2019-01-25,0.032000
2022-05-24,0.035000
2025-12-18,0.034000
2026-03-25,0.032000
2014-12-17,0.181000
2018-08-24,0.028000
2022-09-26,0.050000
2022-12-20,0.086000
2023-07-25,0.043000
2025-06-24,0.037000
2019-09-24,0.026000
2024-10-25,0.035000
2024-06-24,0.038000
2016-02-24,0.027000
2019-04-25,0.027000
2020-01-24,0.026000
2020-12-14,0.254000
2022-10-25,0.051000
2024-03-22,0.039000
2024-05-24,0.036000
2024-12-19,0.033000
2025-08-25,0.039000
2015-01-23,0.028000
2020-09-24,0.036000
2025-01-27,0.035000
2025-07-25,0.039000
2025-10-27,0.039000
2026-06-24,0.033000
2015-03-25,0.029000
2017-02-23,0.027000
2018-01-25,0.030000
2022-02-22,0.033000
2026-02-23,0.032000
2016-06-24,0.028000
2017-01-25,0.028000
2021-02-22,0.030000
2022-01-25,0.032000
2015-02-25,0.032000
2018-05-24,0.026000
2021-09-24,0.033000
2015-12-17,0.127000
2016-01-25,0.025000
2016-04-25,0.026000
2020-08-25,0.037000
2020-10-26,0.039000
2024-08-26,0.041000
2015-05-26,0.034000
2016-03-24,0.025000
2016-10-25,0.024000
2019-05-24,0.027000
2019-11-25,0.026000
2021-06-24,0.025000
2022-11-23,0.051000
2024-02-23,0.037000
2024-04-24,0.041000
2024-07-25,0.040000
2014-10-24,0.022000
2015-11-23,0.026000
2024-09-24,0.039000
2026-07-27,0.035000
2016-05-25,0.026000
2017-08-25,0.030000
2018-02-23,0.026000
2018-10-25,0.032000
2021-10-25,0.033000
2021-11-22,0.033000
2024-01-25,0.038000
2019-10-25,0.025000
2015-04-24,0.031000
2015-06-25,0.031000
2017-03-22,0.028000
2022-08-25,0.045000
2023-04-24,0.040000
2014-07-25,0.017000
2015-09-25,0.031000
2016-08-25,0.028000
2016-09-23,0.026000
2017-05-24,0.029000
2018-09-24,0.030000
2020-11-23,0.038000
2025-11-21,0.038000
2026-01-26,0.033000
2017-06-23,0.029000
2017-07-25,0.029000
2018-03-23,0.026000
2019-02-25,0.028000
2019-07-25,0.027000
2020-02-25,0.026000
2023-03-27,0.040000
2023-08-25,0.043000
2014-11-25,0.024000
2019-03-25,0.028000
2019-06-24,0.027000
2019-08-23,0.026000
2021-05-24,0.026000
2026-04-24,0.031000
2016-11-22,0.026000
2018-06-25,0.027000
2014-09-24,0.021000
2020-05-26,0.028000
2020-07-24,0.036000
2022-04-25,0.034000
2018-04-25,0.026000
2020-06-24,0.031000
2022-03-25,0.033000
2023-01-25,0.047000
2025-02-24,0.038000
2021-12-20,0.109000
2025-04-24,0.038000
2025-09-24,0.041000
2026-05-22,0.031000
2014-08-25,0.020000
2020-03-25,0.024000