f/overrides/event-backup/maagx-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

455 B

1DateDividends
22005-12-290.316000
32006-12-270.365000
42008-12-260.400000
52011-12-270.200000
62013-12-270.187000
72015-12-290.988000
82016-12-280.568000
92004-12-300.143000
102023-12-270.905000
112024-12-261.491000
122022-12-281.073000
132018-12-271.191000
142017-12-270.941000
152014-12-290.251000
162019-12-261.170000
172020-12-290.995000
182021-12-282.104000
192012-12-270.183000
202009-12-280.162000
212010-12-280.178000
222025-12-232.457000
232007-12-281.065000