f/overrides/event-backup/ccbbx-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

299 B

1DateCapital Gains
22001-11-140.116000
32005-12-080.047000
42008-12-230.035000
52021-12-220.061000
61998-11-120.204000
72004-12-200.017000
82009-12-220.027000
92020-12-230.383000
102022-12-190.005000
112023-12-200.014000
122003-12-190.249000
132010-12-220.011000
142002-12-110.054000
152015-12-230.015000