f/overrides/event-backup/mxkwx-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

439 B

1DateCapital Gains
22021-09-030.659000
32024-12-270.120000
42016-12-280.258000
52017-12-270.371000
62018-09-070.135000
72019-12-271.011000
82024-09-060.042000
92025-09-050.018000
102015-09-040.050000
112016-09-070.070000
122018-12-271.731000
132022-09-060.037000
142017-09-060.049000
152020-09-040.487000
162021-12-290.812000
172022-12-280.183000
182023-09-060.117000
192023-12-271.356000
202015-12-290.285000
212019-09-060.060000
222020-12-291.479000