f/overrides/event-backup/mrlix-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

355 B

1DateDividends
22014-12-262.701000
32019-12-161.185000
42022-12-151.055000
52023-12-141.282000
62011-12-271.714000
72018-12-272.589000
82010-12-280.388000
92012-12-261.043000
102015-12-280.291000
112017-12-270.469000
122021-12-151.530000
132024-12-162.304000
142025-12-162.590000
152009-12-280.184000
162013-12-263.842000
172016-12-270.271000
182020-12-160.797000