f/overrides/event-backup/flckx-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
22022-12-160.969000
32008-09-120.250000
42021-12-171.530000
52021-09-102.356000
62022-09-094.553000
72024-12-201.062000
82025-09-120.891000
92016-09-162.327000
102017-12-011.205000
112023-12-151.116000
122024-09-134.182000
132015-09-111.642000
142015-12-040.820000
152018-09-143.760000
162018-12-141.029000
172023-09-082.919000
182016-12-026.449000
192017-09-155.113000