f/overrides/event-backup/difhx-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

339 B

1DateCapital Gains
22022-07-290.157000
32014-05-300.086000
42014-12-220.153000
52015-07-310.129000
62018-07-310.061000
72018-12-200.017000
82019-07-310.004000
92021-07-300.010000
102017-12-210.060000
112020-07-310.031000
122015-12-220.277000
132021-12-160.257000
142012-12-060.009000
152013-05-310.028000
162013-12-100.144000
172016-07-290.003000