f/overrides/event-backup/heovx-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

435 B

1DateDividends
22017-12-270.101000
32018-12-270.146000
42019-12-100.229000
52019-12-270.396000
62020-12-290.103000
72025-12-110.942000
82025-12-290.126000
92016-12-280.149000
102019-04-300.025000
112022-12-280.173000
122023-12-270.133000
132024-12-110.332000
142024-12-270.132000
152016-12-160.211000
162017-12-151.069000
172018-12-171.412000
182019-02-280.025000
192019-03-290.027000
202020-12-100.148000
212021-12-100.856000
222021-12-290.114000