f/overrides/event-backup/artix-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

319 B

1DateCapital Gains
22007-12-194.470000
32018-11-202.273000
41998-09-300.244000
52001-12-140.931000
62019-11-211.442000
72020-11-241.041000
82022-11-220.306000
92023-12-070.207000
101996-12-030.115000
111999-11-110.539000
122008-12-170.705000
131997-12-101.129000
142000-11-153.550000
152021-11-236.875000
162024-12-102.524000