f/overrides/event-backup/muigx-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
21997-12-302.020000
31998-12-160.309000
42014-12-162.429000
52018-12-183.833000
62019-12-110.675000
72024-12-190.541000
82016-12-160.521000
92020-12-210.208000
101996-12-300.942000
111999-12-162.443000
122000-12-183.203000
132013-12-181.085000
142015-12-170.491000
152017-12-181.215000
162021-12-211.017000