f/overrides/event-backup/esifx-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

299 B

1DateCapital Gains
22016-12-130.032000
32018-12-110.358000
42020-08-180.105000
52017-07-260.037000
62020-12-100.073000
72021-12-090.818000
82025-12-090.486000
92019-12-170.202000
102022-12-090.400000
112023-12-110.055000
122024-12-100.530000
132017-12-120.251000
142018-08-090.035000
152019-08-080.045000