f/overrides/event-backup/fkmcx-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
2012-12-27,0.057000
2016-06-10,1.864000
2023-06-09,0.122000
2026-06-12,2.587000
2011-12-16,0.148000
2013-06-07,0.312000
2017-06-09,0.903000
2019-12-20,1.811000
2022-12-16,0.325000
2009-12-18,0.089000
2013-12-13,0.940000
2014-06-06,2.836000
2018-12-07,4.075000
2012-12-14,0.608000
2015-12-11,1.726000
2016-12-09,1.031000
2020-06-05,0.927000
2020-12-18,1.607000
2021-06-04,3.277000
2023-12-15,0.969000
2010-04-09,0.032000
2011-06-10,1.435000
2014-12-12,1.048000
2021-12-17,2.155000
2022-06-10,1.733000
2025-06-13,0.691000
2008-12-19,0.101000
2012-06-08,0.585000
2015-06-05,3.019000
2019-06-07,0.598000
2024-06-14,2.250000
2010-12-17,0.051000
2017-12-08,1.901000
2018-06-08,1.630000
2024-12-20,1.536000
2010-06-11,0.079000
2025-12-19,0.173000