f/overrides/event-backup/earax-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

295 B

1DateDividends
22013-12-230.135000
32018-12-040.359000
42023-12-280.315000
52012-12-200.153000
62017-12-210.311000
72019-12-030.611000
82021-12-070.843000
92025-12-300.400000
102016-12-220.062000
112015-12-230.164000
122020-12-080.447000
132022-12-270.105000
142024-12-300.300000
152014-12-230.174000