f/overrides/event-backup/fiwfx-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
22018-05-110.004000
32021-05-140.110000
42024-12-300.179000
52016-12-280.012000
62017-05-120.021000
72019-05-100.027000
82019-12-302.207000
92021-12-300.099000
102022-05-130.047000
112025-05-090.055000
122015-12-290.003000
132018-12-280.165000
142017-12-280.020000
152020-05-080.064000
162020-12-300.129000
172024-05-100.124000