f/overrides/event-backup/fsnvx-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
22018-05-110.294000
32018-12-280.276000
42022-12-290.152000
52023-12-280.007000
62021-05-140.595000
72023-05-120.035000
82025-05-090.311000
92024-12-300.095000
102017-12-280.194000
112019-05-100.418000
122019-12-300.132000
132022-05-060.759000
142024-05-100.046000
152020-05-080.282000
162020-12-300.262000
172021-12-300.600000