f/overrides/event-backup/cddyx-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

49 lines
955 B
Plaintext

Date,Dividends
2018-06-21,0.113000
2019-03-20,0.115000
2019-09-20,0.120000
2022-03-18,0.145000
2023-06-21,0.151000
2014-12-16,1.334000
2021-09-21,0.132000
2022-06-21,0.133000
2022-09-21,0.149000
2022-12-13,0.723000
2023-03-20,0.161000
2023-09-21,0.143000
2025-03-20,0.154000
2017-06-22,0.104000
2017-03-22,0.107000
2017-09-21,0.097000
2020-09-22,0.111000
2023-12-13,1.083000
2024-03-20,0.155000
2024-12-12,1.552000
2026-06-18,0.156000
2015-06-22,0.129000
2017-12-13,0.709000
2019-06-17,0.118000
2020-03-20,0.128000
2024-09-20,0.157000
2016-09-22,0.090000
2018-12-13,1.193000
2021-12-14,0.580000
2025-06-20,0.163000
2025-09-19,0.164000
2025-12-11,1.494000
2026-03-19,0.165000
2016-03-23,0.109000
2018-09-21,0.112000
2021-03-18,0.121000
2021-06-18,0.110000
2024-06-21,0.158000
2015-03-20,0.129000
2016-06-23,0.098000
2019-12-13,0.387000
2020-12-11,0.119000
2015-09-22,0.129000
2016-12-14,0.554000
2018-03-21,0.113000
2020-06-17,0.120000
2015-12-14,1.104000