f/overrides/event-backup/ffdkx-capitalGain.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,Capital Gains
2014-08-08,2.934000
2015-08-07,1.699000
2018-12-07,0.438000
2023-08-11,0.385000
2023-12-15,0.920000
2013-12-13,0.987000
2014-12-12,1.745000
2016-08-12,1.383000
2017-08-11,3.914000
2017-12-08,0.884000
2018-08-10,2.104000
2019-08-09,1.458000
2019-12-13,0.864000
2008-08-08,0.990000
2020-12-11,1.376000
2016-12-09,1.067000
2021-08-06,2.980000
2021-12-10,0.458000
2015-12-11,0.290000
2013-08-02,1.997000