f/overrides/event-backup/asea-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
22022-06-290.177000
32023-12-280.285000
42025-12-300.370000
52015-12-290.442000
62016-12-280.356000
72019-12-300.156000
82021-12-300.437000
92022-12-290.156000
102011-12-280.369000
112013-12-270.593000
122014-12-290.418000
132024-12-300.243000
142026-06-290.406000
152018-12-280.469000
162023-06-290.282000
172024-06-270.332000
182020-06-290.230000
192020-12-300.098000
202021-06-290.171000
212025-06-270.354000
222012-12-270.375000
232017-12-280.270000
242019-06-270.249000