f/overrides/event-backup/dffvx-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

379 B

1DateCapital Gains
22017-12-151.091000
32023-12-130.263000
42001-12-170.386000
52010-12-090.031000
62011-12-130.122000
72015-12-160.886000
82002-12-161.346000
92003-12-220.890000
102013-12-121.322000
112014-12-161.008000
122016-12-150.779000
132018-12-180.936000
142019-12-170.570000
152021-12-152.027000
162005-12-191.020000
172012-12-130.976000
182022-12-141.038000
192004-12-200.608000