f/overrides/event-backup/lpsgx-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
2009-12-31,0.554000
2011-06-30,0.071000
2024-06-28,0.175000
2014-06-30,0.527000
2014-12-31,2.134000
2021-06-30,0.455000
2022-07-14,0.168000
2020-06-30,0.255000
2008-12-31,0.002000
2010-06-30,0.043000
2012-06-29,0.013000
2012-12-31,0.340000
2017-12-29,0.861000
2018-06-29,0.376000
2018-12-31,1.900000
2021-12-31,1.741000
2010-12-31,0.124000
2011-12-30,0.377000
2013-06-28,0.038000
2013-12-31,1.150000
2015-06-30,0.146000
2015-12-30,1.149000
2019-12-31,0.820000
2024-12-24,1.399000