f/overrides/event-backup/iqlt-dividend.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

475 B

1DateDividends
22017-12-190.167000
32018-12-180.203000
42019-12-160.267000
52022-06-090.713000
62022-12-130.303000
72024-06-110.627000
82015-12-210.156000
92016-12-210.233000
102025-12-160.449000
112020-06-150.344000
122021-06-100.478000
132023-06-070.484000
142025-06-160.608000
152016-06-220.481000
162018-06-190.499000
172020-12-140.228000
182024-12-170.438000
192019-06-170.468000
202021-12-130.403000
212023-12-200.369000
222026-06-150.746000
232015-06-250.546000
242017-06-200.532000