f/overrides/event-backup/jdmnx-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

303 B

1DateCapital Gains
22013-12-174.340000
32016-12-191.558000
42022-12-2012.573000
52018-12-186.804000
62025-12-0510.369000
72014-12-174.972000
82015-12-173.135000
92017-12-192.093000
102023-12-079.833000
112024-12-068.352000
122012-12-182.266000
132019-12-176.154000
142020-12-1712.822000
152021-12-2024.674000