f/overrides/event-backup/cspyx-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
22017-12-061.251000
32018-12-061.686000
42025-06-130.854000
52020-12-100.249000
62023-12-120.523000
72024-12-112.345000
82017-06-200.347000
92019-12-120.673000
102020-06-190.264000
112021-06-140.643000
122022-12-121.340000
132025-12-101.472000
142018-06-190.427000
152019-06-180.531000
162021-12-101.453000
172022-06-220.740000
182023-06-220.444000
192024-06-140.909000