f/overrides/event-backup/eafgx-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
2018-12-04,1.318000
2022-12-13,5.247000
2012-12-13,0.003000
2018-08-09,0.605000
2025-12-09,6.577000
2015-05-21,0.199000
2024-12-10,1.530000
2019-08-08,0.182000
2020-12-15,2.026000
2021-12-13,5.023000
2013-12-12,0.305000
2014-12-11,0.357000
2019-12-03,1.005000
2020-08-18,0.682000
2023-12-12,0.607000
2014-09-09,0.177000
2017-07-26,0.007000