f/overrides/event-backup/lmisx-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
22020-12-220.385000
32021-06-170.041000
42015-12-090.790000
52023-12-150.287000
62019-06-200.049000
72017-12-200.974000
82023-06-151.063000
92014-12-100.665000
102018-06-190.142000
112018-12-192.248000
122019-12-181.244000
132020-06-180.126000
142021-07-120.647000
152021-12-224.650000
162024-06-130.017000
172013-12-110.346000
182025-06-130.199000
192024-12-170.830000