f/overrides/event-backup/csvyx-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

499 B

1DateCapital Gains
22020-06-190.030000
32022-06-222.167000
42023-06-220.677000
52024-12-060.814000
62025-06-241.178000
72018-06-210.956000
82019-06-181.031000
92013-12-057.232000
102017-06-212.797000
112017-12-062.035000
122010-12-070.154000
132012-12-071.642000
142016-12-072.288000
152018-12-061.996000
162019-12-050.111000
172021-06-241.870000
182021-12-074.014000
192023-12-072.320000
202011-12-062.717000
212014-12-056.471000
222024-06-241.857000
232025-12-053.986000
242015-11-064.388000
252016-06-272.339000