f/overrides/event-backup/cevyx-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

419 B

1DateCapital Gains
22021-12-200.479000
32023-06-160.261000
42025-06-170.143000
52014-12-100.803000
62015-06-180.182000
72018-06-150.407000
82019-06-130.483000
92019-12-130.464000
102022-06-160.612000
112024-12-180.472000
122022-12-190.077000
132023-12-190.236000
142013-12-170.486000
152014-06-201.010000
162015-12-160.090000
172021-06-160.714000
182018-12-170.622000
192020-06-150.444000
202020-12-170.452000
212024-06-180.495000