f/overrides/event-backup/kgdax-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
2025-12-23,3.369000
2002-05-23,0.032000
2007-12-21,2.784000
2014-12-23,3.740000
2016-12-22,2.735000
2019-12-23,0.091000
2020-12-23,0.132000
2022-12-22,1.326000
2002-11-21,0.032000
2011-12-23,0.844000
2012-12-26,2.286000
2013-12-23,4.368000
2010-12-23,0.314000
2012-12-31,0.005000
2017-12-21,4.357000
2018-12-21,4.710000
1999-12-21,2.380000
2002-04-23,0.032000
2005-12-23,1.840000
2006-12-22,4.944000
2023-12-21,1.461000
2024-12-23,1.800000
2000-12-18,2.405000
2008-12-23,0.192000
2015-12-23,2.316000
2021-12-23,5.903000