f/overrides/event-backup/linkx-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

359 B

1DateCapital Gains
22014-12-310.097000
32017-12-290.016000
42021-12-310.069000
52012-12-310.039000
62015-12-300.092000
72018-06-290.003000
82019-12-310.095000
92020-12-310.017000
102021-06-300.023000
112013-06-280.011000
122014-06-300.046000
132022-07-140.020000
142013-12-310.083000
152015-06-300.006000
162016-12-300.034000
172018-12-310.005000
182020-06-300.005000