f/overrides/event-backup/cpoax-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
22018-06-220.154000
32019-06-210.128000
42019-12-132.844000
52022-12-128.958000
62017-06-230.174000
72012-12-143.214000
82013-12-132.969000
92015-12-152.815000
102016-12-152.734000
112021-12-139.822000
121999-06-230.004000
132014-06-230.132000
142015-06-230.013000
152017-12-159.013000
162018-12-142.921000
171999-12-160.884000
182020-12-147.324000
192014-12-152.282000