f/overrides/event-backup/bafsx-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

319 B

1DateCapital Gains
22011-12-080.269000
32014-12-234.215000
42015-12-215.093000
52017-12-190.508000
62020-12-150.450000
72007-12-121.024000
82018-12-171.594000
92024-12-132.603000
102013-12-131.684000
112016-12-191.126000
122022-12-133.323000
132008-12-100.363000
142012-12-122.687000
152019-12-160.885000
162021-12-147.230000