f/overrides/event-backup/lvhi-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

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Date,Dividends
2023-03-30,0.118000
2023-12-07,1.214000
2024-09-05,0.271000
2026-06-04,0.626000
2018-12-26,1.468000
2021-12-02,0.122000
2022-09-08,0.228000
2023-09-07,0.319000
2024-03-07,0.037000
2024-06-06,0.450000
2025-03-06,0.127000
2017-12-26,0.238000
2020-06-04,0.264000
2020-09-03,0.123000
2022-12-08,1.042000
2025-06-05,0.544000
2018-03-26,0.335000
2018-09-25,0.296000
2019-09-05,0.186000
2020-12-03,0.393000
2017-09-26,0.150000
2022-06-02,0.622000
2023-06-08,0.596000
2019-06-06,0.311000
2024-12-05,0.752000
2026-03-05,0.159000
2021-09-02,0.249000
2021-12-29,0.095000
2022-03-03,0.085000
2019-03-07,0.331000
2019-12-30,0.119000
2020-03-05,0.085000
2021-06-03,0.398000
2025-09-04,0.327000
2025-12-04,0.814000
2018-06-26,0.475000
2019-12-05,0.835000
2020-12-30,0.064000
2021-03-04,0.231000