f/overrides/event-backup/apodx-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

495 B

1DateDividends
22021-12-210.407000
32022-12-210.529000
42023-06-200.043000
52026-06-090.085000
62014-12-230.102000
72018-06-190.070000
82019-12-200.199000
92022-06-210.055000
102023-12-190.260000
112024-12-170.246000
122013-12-060.023000
132020-12-220.073000
142021-06-220.047000
152024-06-180.016000
162017-12-260.117000
172018-12-200.182000
182020-06-160.040000
192017-06-200.063000
202018-12-310.182000
212025-06-240.130000
222025-12-160.311000
232014-06-100.052000
242015-12-280.006000
252016-12-270.069000