f/overrides/event-backup/mgrax-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

379 B

1DateCapital Gains
21996-12-230.146000
32005-12-150.421000
42014-12-160.247000
52018-12-130.839000
62021-12-092.559000
72007-12-132.252000
82008-12-160.444000
92012-12-130.090000
102013-12-120.167000
111998-12-170.428000
122000-12-181.324000
132006-12-181.923000
142015-12-150.016000
152017-12-140.530000
162019-12-120.177000
172022-12-080.656000
182023-12-190.547000
192024-12-171.926000