f/overrides/event-backup/aroix-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
22014-12-300.802000
32017-10-190.362000
42022-12-280.863000
52015-12-301.176000
62017-12-280.216000
72018-12-271.280000
82018-12-310.380000
92019-12-301.489000
102006-12-150.697000
112009-12-300.127000
122013-12-300.518000
132020-12-291.131000
142021-12-281.424000
152023-12-210.364000
162025-12-192.152000
172004-12-170.137000
182010-12-300.169000
192012-12-280.310000
202016-12-290.611000
212024-12-200.853000
222007-12-140.458000
232008-12-300.420000
242011-12-290.206000