f/overrides/event-backup/fmsfx-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
21993-12-100.020000
31994-09-020.050000
42014-12-220.003000
51993-09-030.050000
61995-12-150.030000
71997-12-120.030000
82003-12-050.150000
92020-10-090.087000
102020-12-040.012000
111995-09-080.070000
121996-09-060.110000
132002-12-060.080000
142021-10-080.037000
151998-12-110.150000
162004-12-030.060000
172015-12-180.006000