f/overrides/event-backup/amub-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

44 lines
855 B
Plaintext

Date,Dividends
2017-08-24,0.306000
2019-02-28,0.292000
2019-05-28,0.261000
2024-08-28,0.279000
2023-11-28,0.272000
2025-08-28,0.309000
2026-03-02,0.320000
2017-02-27,0.292000
2017-11-28,0.300000
2021-02-26,0.196000
2021-05-27,0.208000
2021-11-26,0.221000
2022-02-28,0.196000
2022-05-26,0.225000
2024-02-28,0.263000
2016-02-25,0.340000
2019-08-27,0.299000
2020-08-27,0.240000
2020-11-27,0.212000
2024-11-29,0.285000
2018-11-28,0.286000
2020-02-28,0.273000
2020-05-28,0.229000
2023-05-25,0.264000
2022-08-25,0.220000
2016-05-25,0.340000
2017-05-24,0.314000
2018-02-28,0.266000
2019-11-27,0.295000
2025-05-29,0.309000
2016-11-25,0.316000
2022-11-28,0.229000
2023-02-28,0.251000
2023-08-25,0.260000
2024-05-29,0.288000
2025-03-03,0.300000
2026-05-29,0.324000
2016-08-24,0.320000
2018-05-25,0.319000
2018-08-27,0.314000
2021-08-26,0.199000
2025-12-01,0.317000