f/overrides/event-backup/aadbx-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

439 B

1DateCapital Gains
22022-12-221.163000
31996-12-271.155000
41998-12-291.173000
52020-12-221.653000
62001-12-200.081000
72019-12-201.167000
82024-12-201.107000
92012-12-200.308000
102013-12-200.833000
112014-12-220.780000
122017-12-210.796000
132018-12-201.125000
141997-12-292.264000
151999-12-210.780000
162005-12-220.721000
172021-12-221.179000
182015-12-220.751000
192023-12-210.063000
202004-12-220.474000
212006-12-220.720000
222007-12-210.794000