f/overrides/event-backup/gmrix-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
22007-04-110.234000
32011-12-190.377000
42012-12-190.446000
52016-12-160.881000
62017-12-182.340000
72019-12-180.636000
82003-12-260.170000
92005-12-280.486000
102024-12-190.421000
112022-12-210.068000
122023-12-200.005000
132012-06-150.001000
142013-12-180.898000
152021-12-210.791000
162013-06-210.002000
172014-12-161.061000
182018-12-183.757000
192006-12-271.043000
202015-12-171.446000