f/overrides/event-backup/jabnx-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

279 B

1DateCapital Gains
22025-12-093.345000
32012-12-180.763000
42015-12-171.325000
52016-12-190.350000
62019-12-170.387000
72020-12-170.464000
82024-12-102.229000
92013-12-170.855000
102014-12-171.310000
112017-12-191.106000
122018-12-181.594000
132021-12-221.681000
142022-12-220.318000