f/overrides/event-backup/mxitx-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

399 B

1DateCapital Gains
22016-12-290.193000
32017-09-080.085000
42018-09-110.252000
52018-12-280.213000
62021-12-300.280000
72023-12-280.006000
82016-09-090.216000
92019-09-100.490000
102022-12-290.139000
112024-09-100.180000
122025-09-090.268000
132015-12-300.288000
142019-12-300.073000
152021-09-070.037000
162024-12-300.088000
172017-12-280.223000
182020-09-080.116000
192022-09-080.282000
202023-09-080.079000