f/overrides/event-backup/dnlyx-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
22025-03-281.066000
32015-12-231.400000
42017-03-230.542000
52019-03-210.020000
62020-03-260.526000
72020-12-170.689000
82024-03-270.652000
92024-12-174.266000
102017-12-226.280000
112018-12-204.282000
122022-03-301.788000
132016-03-240.416000
142021-03-300.805000
152023-03-300.195000
162023-12-140.338000
172018-03-220.817000
182019-12-191.240000
192021-12-169.874000
202022-12-152.175000