f/overrides/event-backup/mxgtx-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

379 B

1DateCapital Gains
22018-12-280.390000
32019-09-100.747000
42020-09-080.183000
52021-12-300.428000
62023-09-080.113000
72024-09-100.276000
82015-12-300.511000
92016-09-090.370000
102022-09-080.372000
112022-12-290.265000
122017-09-080.094000
132017-12-280.342000
142019-12-300.093000
152023-12-280.031000
162016-12-290.310000
172018-09-110.406000
182021-09-070.095000
192025-09-090.402000