f/overrides/event-backup/crryx-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

459 B

1DateCapital Gains
22017-06-200.916000
32019-12-050.133000
42022-12-070.379000
52025-12-051.425000
62014-12-051.092000
72016-06-210.139000
82022-06-220.552000
92024-12-061.897000
102016-12-050.749000
112021-12-071.812000
122017-12-060.721000
132018-06-190.465000
142019-06-180.282000
152020-06-190.057000
162021-06-140.842000
172023-06-220.462000
182015-06-220.255000
192015-12-041.648000
202023-12-070.432000
212025-06-130.580000
222018-12-061.453000
232024-06-142.007000