f/overrides/event-backup/fiofx-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
22021-05-140.060000
32025-05-090.017000
42011-05-060.006000
52014-12-290.003000
62016-12-280.008000
72020-12-300.066000
82010-12-300.022000
92012-12-280.017000
102019-05-100.034000
112019-12-302.452000
122024-12-300.006000
132011-12-290.154000
142014-05-090.003000
152020-05-080.055000
162022-05-130.013000
172018-05-110.021000
182021-12-300.038000
192013-05-030.003000
202015-12-290.003000
212017-05-120.014000
222017-12-280.017000