f/overrides/event-backup/cvsix-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

339 B

1DateCapital Gains
22013-12-190.258000
32014-12-180.137000
42016-12-150.200000
51997-12-080.043000
62000-11-080.002000
72002-11-060.002000
82003-11-130.312000
92008-12-180.292000
101998-12-020.861000
112015-12-170.195000
122018-12-200.411000
131999-12-290.260000
142001-11-070.019000
152017-12-140.225000
162023-12-210.510000
172004-11-170.480000