f/overrides/event-backup/bdbkx-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
22014-12-121.246000
32024-07-180.048000
42013-12-130.337000
52017-12-150.416000
62015-12-110.255000
72018-07-190.010000
82020-12-100.092000
92022-07-140.059000
102024-12-120.657000
112014-07-170.164000
122015-07-160.158000
132018-12-140.519000
142019-12-120.419000
152021-07-150.080000
162021-12-091.593000
172022-12-130.003000
182023-12-140.316000
192016-07-210.074000
202016-12-150.528000